Hydraulic and pneumatic. SUN Series CBBL Hydraulic Relief Valve. Ask us. SUN Hydraulic Relief Valve CBBL Series.2. Capacity. 12 gpm 45 L/min. Maximum Operating Pressure. 5000 psi 350 bar. Adjustment - No. of CCW Turns from Fully Closed to Fully Open. 5 5. Valve Hex Size. 1 1/8 in. 28,6 mm.FLeX Series relief valves are fully compatible with the XMD Expandable Mobile Drivers from Sun. Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals. Designed and tested to 10-million operational cycles at full-rated pressure.FLeX Series 2-stage, solenoid-operated adjustable relief valve, energize to vent. RVCL. 25 gpm. 95 L/min. T-10A. FLeX Series 2-stage, solenoid-operated adjustable relief valve, normally blocked. RVCN. 25 gpm.Direct-acting relief cartridges are normally closed, pressure-limiting valves used to protect hydraulic components from pressure transients. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to …This video demonstrates the phenomenon of sonoluminescence and the resulting cavity erosion in hydraulic systems.Long before Sun Hydraulics was founded, pilot-to-open check valves were ubiquitous in the industry. This predates cartridge valves with parts-in-bodies assemblies. These often times have an ‘”adjust screw” to manually release a load by pushing a check ball off of a seat by turning the adjust screw clockwise into the valve. When Bob Koski ...Long before Sun Hydraulics was founded, pilot-to-open check valves were ubiquitous in the industry. This predates cartridge valves with parts-in-bodies assemblies. These often times have an ‘”adjust screw” to manually release a load by pushing a check ball off of a seat by turning the adjust screw clockwise into the valve. When Bob Koski ...To increase corrosion resistance. Sun uses 6061-T651 aluminum. It is one of the most corrosion resistant aluminum alloys there is. Whether or not anodizing improves the corrosion resistance of 6061 aluminum is debatable. We have yet to have a manifold returned because of corrosion. Appearance (color). The 2 colors that would appeal to …Bolt tensioners, cable crimping tools, bearing extractor. Cutters & strippers: Cable Hydraulic cylinders, equipment & material handling rollers, ...Sun Hydraulics is a leading designer and manufacturer of high performance screw-in hydraulic cartridge valves and manifolds. Their products control force, speed and motion …Putting Sun at the heart of hydraulic regenerative braking systems; Technical Tips. Manufacturing Sun Cartridge Cavities (522.27 KB) Mounting and Assembly of Sandwich Bodies (575.9 KB) Technical Information. Sun Model Code Explanation; 999-901-334 (343.9 KB) Custom Integrated Packages from Sun;Sun Hydraulics ... We supply Hydraulic Valves from Sun Hydraulics.Sun Hydraulics maintains a strong commitment to innovation, quality manufacturing, and customer partnerships, reflecting its core values of openness, commitment, innovation, …Air bleed and start-up valve. Air-bleed and start-up cartridges are used to purge air trapped in the system to help reduce power requirements and facilitate pump priming during the start-up of blocked center circuits. Air-bleed and start-up valves require a minimum of 4 gpm (15 L/min.) flow rate and 80 psi (5,5 bar) system pressure.To increase corrosion resistance. Sun uses 6061-T651 aluminum. It is one of the most corrosion resistant aluminum alloys there is. Whether or not anodizing improves the corrosion resistance of 6061 aluminum is debatable. We have yet to have a manifold returned because of corrosion. Appearance (color). Sun's New FLeX Series Solenoid Valves & Coils. Protect your Hydraulic Systems with Sun Filter Cartridges. Sun Cartridges with EPDM Seals. QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool. Sun Expands Corrosion-Resistant Solutions. Keep it clean with Sun filter cartridges. Sun Offers Zinc-Nickel Plating for Corrosion Resistance.They are infinitely adjustable from fully closed up to the maximum orifice diameter. An integral high-capacity check valve provides unrestricted flow from port 2 to port 1. They are not pressure compensated. All 2-port flow control cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).They are infinitely adjustable from fully closed up to the maximum orifice diameter. An integral high-capacity check valve provides unrestricted flow from port 2 to port 1. They are not pressure compensated. All 2-port flow control cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size).Putting Sun at the heart of hydraulic regenerative braking systems; Technical Tips. Manufacturing Sun Cartridge Cavities (522.27 KB) Mounting and Assembly of Sandwich Bodies (575.9 KB) Technical Information. Sun Model Code Explanation; 999-901-334 (343.9 KB) Custom Integrated Packages from Sun;Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified. Standard Line Mount Manifolds for High Flow Valves. QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool. Putting Sun at the heart of hydraulic regenerative braking systems.2 caveats: (1) If the valve is in the reducing mode and you suddenly reverse the flow, the valve will not have time to open and will shift into relieving mode or (2) If the back flow generates a pressure drop through the valve that exceeds the setting, the valve will shift into the relieving mode. When in doubt, use a reverse flow check.Our reducing valves are outside-in valves; the supply pressure on the outside of the working parts is higher than the inside. At some pressure differential, the outside (sleeve) will close in on the piston and cause the valve to stick. A D range is adjustable from 25 to 800 psi with a maximum differential of 2000 psi.It starts with a cavity that is full of oil. Sun load-holding cartridges block flow from the nose of the cartridge, port 1, to the side, port 2. When you insert a cartridge into an oil-filled cavity, the oil is displaced either into port 2 or outside the manifold. As the nose seals start into their bore they try to seal. Sun's sequence valves offer the following: Functionally interchangeable with one another (same flow path, same cavity for a given frame size) Offered in five sizes with flow rates up to 120 gpm (480 L/min.) Fully adjustable over a wide range of operating pressures up to and including 5000 psi (350 bar) (6000 psi (420 bar) intermittent) (except ... Technical Features [ + ] Needle valves are fully adjustable orifices used to regulate flow. They are infinitely adjustable from fully closed up to the maximum orifice diameter. They are not pressure compensated and may be used as flow controls or as shutoff valves. All 2-port flow control cartridges are physically and functionally ...There are many types of hydraulic machines that include large machinery, such as backhoes and cranes. Other types of smaller equipment include log-splitters and jacks. The brake on...Unique balanced construction provides predictable switching with 5000 psi (350 bar) at both ports 1 and 2, with the external drain open and a minimum pilot pressure of 400 psi (30 bar). These valves are hydraulically balanced between port 1 and port 2. Port 1 and port 2 are fully sealed from port 3 and port 4. Ports 3 and 4 are positively sealed.Sun Hydraulics is a leading manufacturer of high-quality electro-hydraulic products, such as cartridges, manifolds, electronics and accessories. Explore their new products, …Symbol Description Model Capacity Cavity : 4-way, 3-position, electro-proportional, solenoid-operated directional valve, 3600 psi (250 bar) - common cavity Long before Sun Hydraulics was founded, pilot-to-open check valves were ubiquitous in the industry. This predates cartridge valves with parts-in-bodies assemblies. These often times have an ‘”adjust screw” to manually release a load by pushing a check ball off of a seat by turning the adjust screw clockwise into the valve. When Bob Koski ...Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals. These valves are hydraulically balanced between port 1 and port 2. All ports will accept 5000 psi (350 bar). Incorporates the Sun floating style construction to minimize the ... Sun’s newly named Koski Center serves as the global headquarters of the company’s R&D efforts. It provides expanded hydraulics and electro-hydraulics testing capabilities intended to serve the company's own product innovation and development efforts and to support its global OEM customers, testing the latest technologies and Sun solutions for their machines and equipment. To increase corrosion resistance. Sun uses 6061-T651 aluminum. It is one of the most corrosion resistant aluminum alloys there is. Whether or not anodizing improves the corrosion resistance of 6061 aluminum is debatable. We have yet to have a manifold returned because of corrosion. Appearance (color).Putting Sun at the heart of hydraulic regenerative braking systems; Technical Tips. Manufacturing Sun Cartridge Cavities (522.27 KB) Mounting and Assembly of Sandwich Bodies (575.9 KB) Technical Information. Sun Model Code Explanation; 999-901-334 (343.9 KB) Custom Integrated Packages from Sun;Sun's load reactive and non-load reactive, load control valves complement our existing line of motion control products, sharing the same cavities as CB**, CA** and CW** counterbalance valves. Feature low leakage with excellent modulation characteristics Available in adjustable and fixed setting versions Can be installed directly into a cavity ... FLeX Series 2-way, 2-stage, solenoid-operated directional poppet valve with reverse flow check - flow 2-1. DFBF. 10 gpm. T-162A. DFBG. 10 gpm. T-162A. FLeX Series pilot-operated, normally closed, electro-proportional throttle - flow 2-1 - 3000 psi (210 bar) Some common viscosity grades for hydraulic oil include 10, 32, 46 and 68. The viscosity of hydraulic oil is usually referred to as the fluid’s International Standards Organization ...Anodizing an aluminum manifold grossly reduces the fatigue life by anywhere from 20% to 50%. Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the port type/size a secondary consideration. Manifolds constructed of aluminum are not rated for pressures higher ...Sun Hydraulics ... We supply Hydraulic Valves from Sun Hydraulics.Ranges A, B, N, and Q are tested with a 3000 psi (210 bar) maximum differential between inlet and reduced pressure. Range W is tested with 5000 psi (350 bar) of inlet pressure. Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge ...610 L/min. Performance Curves. Free-flow, nose-to-side check valves are on/off circuit components that allow free flow from the inlet (port 1) to the outlet (port 2) and block flow in the opposite direction. Two-port check valves share the same cavity for a given frame size, however, pay close attention as flow paths may be in opposite directions.Sun hydraulicics is a combination of the hydraulic systems used to power plants with hydrauliconic. The price of sun hydraulicics varies depending on the usage ...This valve is a pilot to open check valve. It has a sealed pilot, a steel seat, and is vented. It allows free flow from the valve (port 2) to the load (port 1) and blocks flow in the opposite direction. Pressure at the pilot (port 3) pilot port will open the valve from port 1 to port 2. Pilot pressure needed to open the valve is directly ... Long before Sun Hydraulics was founded, pilot-to-open check valves were ubiquitous in the industry. This predates cartridge valves with parts-in-bodies assemblies. These often times have an ‘”adjust screw” to manually release a load by pushing a check ball off of a seat by turning the adjust screw clockwise into the valve. When Bob Koski ...8 May 2023 ... Overall, 59% of employees would recommend working at Sun Hydraulics to a friend. This is based on 57 anonymously submitted reviews on Glassdoor.Technical Features [ + ] This solenoid-operated 2-way, 2-position cartridge is a direct-acting, poppet-style directional valve. The valve is available in either a normally open or normally closed configuration and is designed to be used with 740 and 747 Series coils. Due to the poppet style construction, this valve has extremely low leakage. It starts with a cavity that is full of oil. Sun load-holding cartridges block flow from the nose of the cartridge, port 1, to the side, port 2. When you insert a cartridge into an oil-filled cavity, the oil is displaced either into port 2 or outside the manifold. As the nose seals start into their bore they try to seal. Long before Sun Hydraulics was founded, pilot-to-open check valves were ubiquitous in the industry. This predates cartridge valves with parts-in-bodies assemblies. These often times have an ‘”adjust screw” to manually release a load by pushing a check ball off of a seat by turning the adjust screw clockwise into the valve. When Bob Koski ...Sun Hydraulics designs a broad array of products that defy conventional categorization, which we call specialty cartridges (previously called circuit savers). These enabling products are useful devices that often help machine designers get around difficult and perplexing circuit problems. Long before Sun Hydraulics was founded, pilot-to-open check valves were ubiquitous in the industry. This predates cartridge valves with parts-in-bodies assemblies. These often times have an ‘”adjust screw” to manually release a load by pushing a check ball off of a seat by turning the adjust screw clockwise into the valve. When Bob Koski ...Pilot-operated, balanced-piston relief cartridges are normally closed pressure regulating valves. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to regulate the pressure. These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are ...Sun Hydraulics® designs & manufactures high-performance screw-in hydraulic cartridge valves and custom manifold systems, utilizing counterbalance, relief, ...The capacity of side-to-nose (port 2 to port 1) 2-port check valves is approximately 30% less than preferred models with a nose-to-side (port 1 to port 2) flow path. Check valves offer extremely low leakage rates with a maximum leakage of less than 1 drop per minute (0,07 cc/min). Will accept 5000 psi (350 bar) at ports 1 and 2.This electro-proportional, direct-acting reducer/reliever valve reduces a high primary pressure at the inlet (port 2) to a constant reduced pressure at port 1, with a full flow relief function from port 1 to tank (port 3). The valve is biased to the relieving mode. Energizing the coil connects port 2 to port 1.Manifolds constructed of aluminum are not rated for pressures higher than 3000 psi (210 bar), regardless of the port type/size specified. Standard Line Mount Manifolds for High Flow Valves. QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool. Putting Sun at the heart of hydraulic regenerative braking systems.Sun Hydraulics is a public company that produces high-performance screw-in hydraulic cartridge valves and manifolds for fluid power systems. Learn about its history, values, products, and markets on its official website. Sun Hydraulics reducing cartridges are available in five sizes, with flow rates up to 80 gpm (320 L/min.). Functionally interchangeable with reducing/relieving cartridges (same flow path, same cavity for a given frame size) Fully adjustable up to and including 4500 psi (315 bar) with inlet pressures up to 5000 psi (350 bar) except air-piloted versionsThese valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast. A remote pilot relief on port 3 (vent) will control the valve below its own setting. Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.In the year 1970 we began as trailblazers. Everything about the company—from how we engineer, manufacture and distribute products to the way we foster leadership and collaboration—was ahead of its time. And 50 years later, it still is. See for yourself by exploring through our company history pages. 1970 - 1979. 3-way, solenoid-operated directional spool valve. This solenoid-operated 3-way, 2-position cartridge is a direct-acting, balanced spool directional valve. The solenoid tube assembly is fatigue rated for 5000 psi (350 bar) service. Spools B and R are closed in the transition between their two positions. This results in a higher performance limit ... Two-port check valves share the same cavity for a given frame size, however, pay close attention as flow paths may be in opposite directions. Check valves offer extremely low leakage rates with a maximum leakage of less than 1 drop per minute (0,07 cc/min). Will accept 5000 psi (350 bar) at ports 1 and 2. Cartridges configured with EPDM seals ...Your QuickPrint Catalogue is generated on demand based on your product selection. Process time depends on the models selected and the resulting file size.Sun sells through a network of authorized distributors located all around the world. For price and delivery quotations, please contact your distributor. Use our "Distributor Search" in …We wouldn’t have many of the modern conveniences that we do if it wasn’t for hydraulic lifts. Dentist chairs, vehicle brakes, elevators, forklifts and a great variety of other mach...Why do freckles come out in the sun? Visit HowStuffWorks to learn why freckles come out in the sun. Advertisement If you have freckles, you've probably noticed that a long day in t...Two-port, pilot-stage, direct-acting relief cartridges are fully adjustable, normally closed pressure regulating valves. When the pressure at port 1 (inlet) is sufficient to overcome the spring force (valve setting), a flow path is opened from port 1 to port 2 (tank). Utilizes the Sun T-8A 2-port cavity making it the ideal choice to use in ...Thank you for your interest in Sun Hydraulics. Please provide your contact information and choose the appropriate category for your inquiry, and we will respond as quickly as possible. If you are looking for pricing information or are ready to place an order, please contact your local distributor using Sun's Authorized Distributor Network page ... Sun Hydraulics. Sun Hydraulics is a leading designer and manufacturer of high-performance screw-in hydraulic cartridge valves and manifolds that control force, speed …8 Nov 2017 ... Sun Hydraulics Introduces FLeX Hydraulic Valves ... Sun Hydraulics recently introduced their new line of FLeX hydraulic valves and coils. The FLeX ...This valve is a pilot to open check valve. It has a sealed pilot, a steel seat, and is vented. It allows free flow from the valve (port 2) to the load (port 1) and blocks flow in the opposite direction. Pressure at the pilot (port 3) pilot port will open the valve from port 1 to port 2. Pilot pressure needed to open the valve is directly ... The pressure setting of a sequence valve controls the pressure at port 1 relative to the pressure at the drain (port 3). These valves are insensitive to back pressure at port 2 (sequence), up to the valve setting. They may be used to regulate pressure in place of 2-port relief valves if there is pressure in the return line.Sun's New FLeX Series Solenoid Valves & Coils. Protect your Hydraulic Systems with Sun Filter Cartridges. Sun Cartridges with EPDM Seals. QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool. Sun Expands Corrosion-Resistant Solutions. Keep it clean with Sun filter cartridges. Sun Offers Zinc-Nickel Plating for Corrosion Resistance.Sun Hydraulics provides a variety of solenoid and non-solenoid directional control cartridges that include 2-, 3- and 4-way configurations. Sun directional control cartridges …All 2-port flow control cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size). However, cartridge extension dimensions from the mounting surface may vary. A balanced adjustment mechanism allows for easy adjustment even at high pressures. The sharp-edged orifice design minimizes flow ... To increase corrosion resistance. Sun uses 6061-T651 aluminum. It is one of the most corrosion resistant aluminum alloys there is. Whether or not anodizing improves the corrosion resistance of 6061 aluminum is debatable. We have yet to have a manifold returned because of corrosion. Appearance (color). The 2 colors that would appeal to …Reasons to anodize: To increase corrosion resistance. Sun uses 6061-T651 aluminum. It is one of the most corrosion resistant aluminum alloys there is. Whether or not anodizing improves the corrosion resistance of 6061 aluminum is debatable. We have yet to have a manifold returned because of corrosion. Appearance (color).Two-port check valves share the same cavity for a given frame size, however, pay close attention as flow paths may be in opposite directions. Check valves offer extremely low leakage rates with a maximum leakage of less than 1 drop per minute (0,07 cc/min). Will accept 5000 psi (350 bar) at ports 1 and 2. Cartridges configured with EPDM seals ...Technical Features [ + ] These unbalanced poppet, logic valves are 2-way switching elements that are spring-biased closed. Pressure at either work port 1 or 2 will further bias the valve to the closed position while pressure at port 3 will tend to open it. The force generated at port 3 must be greater than the sum of the forces acting at port 1 ...To increase corrosion resistance. Sun uses 6061-T651 aluminum. It is one of the most corrosion resistant aluminum alloys there is. Whether or not anodizing improves the corrosion resistance of 6061 aluminum is debatable. We have yet to have a manifold returned because of corrosion. Appearance (color).Sun Hydraulics designs a broad array of products that defy conventional categorization, which we call specialty cartridges (previously called circuit savers). These enabling products are useful devices that often help machine designers get around difficult and perplexing circuit problems. This electro-proportional, direct-acting reducer/reliever valve reduces a high primary pressure at the inlet (port 2) to a constant reduced pressure at port 1, with a full flow relief function from port 1 to tank (port 3). The valve is biased to the relieving mode. Energizing the coil connects port 2 to port 1.Sun Hydraulic Valves. Hydraulic Valves by Sun Hydraulics. Cartridge or Pilot Operated Relief Valves. Contact us for a solution fit to your project and budget.Symbol Description Model Capacity Cavity : 4-way, 3-position, electro-proportional, solenoid-operated directional valve, 3600 psi (250 bar) - common cavity Back-to-back check/shuttle valve with signal at port 3. The back-to-back check valve combines two simple check valves into a single cartridge. It connects the work port with the higher pressure to the signal or common port. The signal is sensed at port 3. Back-to-back check cartridges feature hardened, spherically lapped, guided poppets and a ... Pilot-to-close check valve. This valve is a spring biased closed, pilot-to-close check cartridge that has a 1.8:1 pilot ratio. The valve allows flow from port 1 to port 2 and blocks reverse flow. Pressure at the pilot port opposes pressure at port 1 at a ratio of 1.8:1. This valve is most often used in regeneration circuits.Direct-acting relief cartridges are normally closed, pressure-limiting valves used to protect hydraulic components from pressure transients. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to limit the pressure rise. These valves are smooth and quiet, essentially zero ...FLeX Series relief valves are fully compatible with the XMD Expandable Mobile Drivers from Sun. Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals. Designed and tested to 10-million operational cycles at full-rated pressure.
2-way, direct-acting electro-proportional, pressure compensated flow control valve with reverse flow check. FDEP. 30 gpm. 120 L/min. T-16A. FLeX Series 3-way, direct-acting, electro-proportional, bypass/restrictive, priority flow control valve. FREP. 30 gpm. . Accuweather seattle wa
Sun Hydraulics Corp. designs and manufactures screw-in hydraulic cartridge valves and manifolds, which are used to control force, speed and motion as ...Whether or not the stress is enough to propagate the cracks is a matter of pressure and manifold geometry. Anodizing an aluminum manifold grossly reduces the fatigue life by anywhere from 20% to 50%. Important: Carefully consider the maximum system pressure. The pressure rating of the manifold is dependent on the manifold material, with the ...The pressure setting of a sequence valve controls the pressure at port 1 relative to the pressure at the drain (port 3). These valves are insensitive to back pressure at port 2 (sequence), up to the valve setting. They may be used to regulate pressure in place of 2-port relief valves if there is pressure in the return line.These valves are accurate, have low pressure rise vs. flow, they are smooth and quiet, and are moderately fast. A remote pilot relief on port 3 (vent) will control the valve below its own setting. Will accept maximum pressure at port 2; suitable for use in cross port relief circuits. If used in cross port relief circuits, consider spool leakage.HVCA8. 10 gpm. 40 L/min. T-21A. Pilot-operated, balanced piston relief main stage with integral T-8A control cavity. RPEC8. 25 gpm. 95 L/min.Vented pilot-to-open check valve. This valve is a pilot to open check valve. It has a sealed pilot, a steel seat, and is vented. It allows free flow from the valve (port 2) to the load (port 1) and blocks flow in the opposite direction. Pressure at the pilot (port 3) will open the valve from port 1 to port 2.Sun Hydraulics is a leading designer and manufacturer of high performance screw-in hydraulic cartridge valves and manifolds. Their products control force, speed and motion …Sun Hydraulics Technical Tips 4 · Tech Tips:Web# 999-901-365 Rev. 16JUN14© 2014 Sun Hydraulics Corporation All Sun cavity drawings specify a “Drill/Reamer Relationship” of 1/32 (0,8 mm) of an inch. (See Figure 3.) Specifically, the form reamer should be inserted 1/32 of an inch deeper thanPage and Language Navigation. About; Tech Resources; Where to Buy; Contact; English ∨. English; Français; Deutsch; Español; 简体中文 Sun Hydraulics. 插装阀. 阀块. 电子元件. 解决方案. 辅件. 查看所有介绍. 更多阅读. Flow Control, Made Better with Sun. Fast-acting, pilot-operated, balanced piston relief cartridges are normally closed, pressure-limiting valves used to protect hydraulics components from pressure transients. Fast opening and closing is gained at the expense of smoothness. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2 ...Standard Line Mount Manifolds for High Flow Valves. QuickDesign with SmartConnect Offers Drag-and-Drop Schematic Tool. Putting Sun at the heart of hydraulic regenerative braking systems. Manufacturing Sun Cartridge Cavities. Sun Model Code Explanation; 999-901-334. Removing Valves from Ductile Manifolds.For Series 1 cartridges configured with an O control (panel mount handknob), a .75 in. (19 mm) diameter hole is required in the panel. Pilot-operated, balanced-piston relief cartridges are normally closed pressure regulating valves. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2 ... FLeX Series 2-way, 2-stage, solenoid-operated directional poppet valve with reverse flow check - flow 2-1. DFBF. 10 gpm. 40 L/min. T-162A. Normally Closed | Open. FLeX Series 2-way, 2-stage, solenoid-operated directional poppet valve with reverse flow check - flow 2-1, 3000 psi (210 bar) DFBE. 10 gpm. .