Back pressure valves Long life diaphragm with range of 0-150 PSIG. Air release, optional gauge port and available in PVC, CPVC, PVDF, Teflon, Polypropylene, stainless, alloy 20 and hastelloy C. & sizes are available from 1/4" to 2' NPT. Our color coded handles indate size, and they are also available for higher pressures and temperatures.
Back pressure valves are an essential component for enhancing the performance of chemical dosing systems.The back pressure valves we manufactured are suitable for use with a wide range of corrosive liquids and air. They come with diaphragms made of PFTE or EPDM and are available in various materials, such as PVC, PVDF, carbon steel, SS304, and SS316L. Our back pressure valves have an adjustable pressure range from 10Kpa to 31.5Mpa and are available with either thread or flange connections, which can be customized according to your needs.contact us for more details.
Our old Greek customer, Evander, emailed me in November last year that he sent me a sample of hydraulic cartridge relief valve, and stressing that it was not his, but one of his partners, Ptolemy, and also attached Ptolemy's contact information. After receiving the sample and communicating with Ptolemy, we learned that the hydraulic cartridge relief valve was produced by a local cartridge valve manufacturer in Greek and installed in their hydraulic cylinder, which was unstable. Their engineers said that the root cause was the high back pressure of the hydraulic system and the insensitive opening of the hydraulic cartridge valve. We can't determine the hidden dangers of the hydraulic cartridge valve just according to the original sample. I suggested Evander sending us the video of abnormal hydraulic cylinder, the drawing of hydraulic cartridge valve, and the schematic of the system. After discussing, AAK engineers advised that the problem can only be solved by reducing the opening back pressure resistance of the hydraulic cartridge valve. Perhaps because of Evander's endorsement, Ptolemy paid the development fee on the second day. I have always believed that for industrial products such as hydraulic cartridge valves, it is difficult to get the order without trust. With trust and reliable manufacturing quality, it is easy to get the order. After 40 days, AAK sent 20 samples of hydraulic cartridge valve. Yesterday, Ptolemy emailed me that AAK hydraulic cartridge relief valve was used on the hydraulic cylinder. The prototype operated stably and the hydraulic cartridge valve opened sensitively. AAK hydraulic cartridge valve is stable and sensitive under high back pressure. We optimized the structure of the original hydraulic cartridge relief valve from 3 aspects. 1. The valve sleeve of the hydraulic cartridge relief valve has an oil inlet cavity, and the outer circle of the valve sleeve is provided with a plurality of annular through holes as oil outlet, and oblique holes are set to control the oil outlet. 2. The middle part of the main valve spool is provided with a small hole connecting the oil inlet cavity and the inclined hole, and the main valve spool can slide in the valve body to form a spring cavity that is relatively closed to the oil inlet cavity, and the spring cavity is equipped with a pressure regulating spring. 3. The left end of the valve body is installed with an adjustable rod that can be rotated and retracted and has a lock nut. The pressure regulating spring on the adjusting rod is connected to the main valve spool. The outer diameter of the right end of the valve body is provided with a sealing groove to place the sealing ring group. Two sealing grooves are set on the left side of the external thread of the valve body, and the sealing ring group is placed to seal the connection with the socket to prevent oil leakage. The optimized AAK hydraulic cartridge relief valve equalizes the pressure difference
Ductile Iron Diaphragm Type Pressure Reducing Valve Pressure Rating : PN-16 Material : Ductile Iron Description : Diaphragm Operated, Spring Loaded Ends : Flanged Specials : Maximum Inlet Pressure 16 Bar (Hyd.), Set Pressure 3 to 12 Bar (Hyd.) Item Code : DI000060 Size : 65mm Notes : Available Valve Size : 65mm to 300mm
Carbon Steel Pilot Operated Pressure Reducing Valve Rating : Max. Inlet Pressure 350 PSIG (24.1 Bar) Set Pressure range 5/60, 20/50, 40/125 PSIG for Steam Material : Carbon Steel Description : Pilot Operated, R-Type Trim : SS410 + Stellite Ends : Flanged Specials : IBR Item Code : BM000030 Size : 15mm Notes : Available Valve Size : 25mm to 200mm
Bronze Diaphragm Type Pressure Reducing Valve Rating : Max. Inlet Pressure 10 Bar Hyd. Out Let Pressure 0.5 to 4 Bar (Hyd) Set Pressure range 5/60, 20/50, 40/125 PSIG for Water Material : Bronze Description : Spring Loaded, Rubber Diaphragm Ends : Screwed Female to BS:21 Specials : Suitable for Water Item Code : BM000021 Size : 15mm Notes : Available Valve Size : 10mm to 50mm
Bronze Diaphragm Type Pressure Reducing Valve Rating : Max. Inlet Pressure 250 PSIG (17.24 Bar) Set Pressure range 5/60, 20/50, 40/125 PSIG for Steam Material : Bronze Description : Spring Loaded, SS Diaphragm Ends : Screwed Female to BS:21 Specials : Suitable for Steam, IBR Item Code : BM000018 Size : 15mm Notes : Available Valve Size : 10mm to 50mm
Ductile Iron Diaphragm Type Pressure Reducing Valve Pressure Rating : PN-20 Material : Ductile Iron Description : Diaphragm Operated, Spring Loaded Ends : Flanged Specials : Maximum Inlet Pressure 17.24 kg/cm2, Set Pressure 0.6 kg/cm2 to 6 kg/cm2 Item Code : DI000050 Size : 25mm Notes : Available Valve Size : 25mm to 150mm
Product Range Design Code ASME Section VIII, Div I, PD 5500, AD Merkblatter, PED 97/23/EC, IS 2825 or any other international standard. Capacity Upto 500 M3 ( 5,00,000 Liters water volume) Diameter Upto 6 meters Shell & Dished End Thickness Upto 100 mm or more Weight Upto 250 tons Length Upto 60 meters, with suitable field joints. Material of Construction Carbon Steel, LTCS, NACE & HIC resistant Material, Low Alloy Steel for high temperature service (SA 387 Gr 11 and Gr 22), Cladded Steel (CS with SS, Cupronickel, Aluminum Nickel Bronze, Aluminum brass, Titanium, Inconel and many more), SS (300 & 400 series), Duplex & Super Duplex stainless steel, Cupronickel, Monel , Inconel, Nickel & Nickel Alloys, Hastelloy, Titanium, Aluminum & Aluminum alloys.
Product : Valves Brand : Renaissance Pipe Fitting Inc. Sizes : Refer the specification Condition : New Rating : 4.6, based on 112 reviews price : Start from 5 USD RFP India is Indias wellknown manufacturer supplier and exporter of Valves which is a device that regulates directs or controls the flow of a fluid gases liquids fluidized solids or slurries by opening closing or partially obstructing various passageways Valves are technically valves fittings but are usually discussed as a separate category In an open valve fluid flows in a direction from higher pressure to lower pressure It is being made up from different materials like Stainless Steel Carbon Steel Alloy Steel Gun Metal Brass Bronze Forge Cast Iron Cast Steel and Mild Steel Meanwhile Valves are quite diverse and may be classified into a number of basic types such as Ball Valve Butterfly valve Ceramic Disc valve Check valve Choke Valve Diaphragm valve Gate valve Globe valve Knife Valve Needle Valve Pinch Valve Piston Valve Plug Valve and so on
Size: 1/2 Pressure Range: 1-6, 4-10, 8-13 kgf/cm2 Type of Threads: BSPT, BSPP, BSPF, NPT Applied Temperature: -15 ~ 85 deg. C; 100 ~ 180 deg. C (steam) Certificates & Approvals: CE PED, ACS, WRAS, EC 1935/2004, RINA