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JONENG
STAINLESS STEEL Solenoid Diaphragm Keystone Transformer Butterfly Valve
Keystone stainless steel electromagnetic diaphragm transformer butterfly valves are available in normally open, normally closed, pneumatic, and electric control types, with diameters ranging from DN15 to DN200. The valve body is made of 304/316 stainless steel, with PTFE or rubber seals, ensuring reliable sealing and fast response. They are suitable for food, pharmaceutical, and chemical liquid pipelines.
Working Principles
Keystone's stainless steel electromagnetic diaphragm butterfly valve automatically opens and closes pipeline media through an electromagnetic coil and diaphragm mechanism. When the electromagnetic coil is energized, the magnetic force pushes the diaphragm upward or drives the valve stem to rotate the butterfly plate, opening the valve and allowing smooth media flow. When de-energized, a spring or reset mechanism pushes the diaphragm back to its original position or the butterfly plate closes, with the valve plate pressing against the valve seat to form a seal and prevent media leakage. The valve body features a sanitary design, and the sealing material can be selected from PTFE or rubber, ensuring corrosion resistance and high-temperature resistance. It is suitable for automated control and remote operating systems of food, pharmaceutical, and chemical liquid pipelines.
Specification Chart
Working Pressure | 10 Bar (Max. Pressure is 16bar for but welded connection in small sizes |
Working temperature | -10ºC TO + 120ºC |
Size | 1/2”-12”, DN15-DN300 |
Grade | AISI304 and AISI316L |
FDA approved gaskets in silicone, EPDM, viton, PTFE | |
Connection | Clamp, Weld, Thread,male threaded; female threaded; flange end;union connection |
Surface | Sanitary inside polish (Ra ≤ 0.8 μm) |
Sanitary outside polish (Ra ≤1.6 μm) | |
Standard | ISO, 3A, SMS, RJT, DIN and so on |
Butterfly valve disc and body is made from forging | |
Manual or pneumatic actuated or electric actuated are chosen as per the different applications. | |
Required compressed air | 4-8Bar |
Connection of compressed air | G 1/8’’ |
Limit switch | 6-36V, DC 2nos of NPN or PNP( to be chose |
Valve parts
Body | Stainless steel AISI316L or AISI 304 (1.4301/1.4404) |
Disc | AISI304 or AISI316L |
Pull-position handle | Stainless Steel Material, Round type or square type |
Multi-position Gripper Handle | ABS gripper handle, SS gripper handle, 2/3/4/12 positions to adjustment, Universal type |
Gasket | EPDM, VITON(FPM), Silicone, different color is available |
Bushing | EPDM or PTFE, other material request |
Nut | Stainless Steel 304 or 316 Material or other request |
Bolt | Stainless Steel 304 or 316 Material or other request |
Features
● A special fluid distribution groove is designed inside the valve plate of the stainless steel sanitary welded manual butterfly valve with a lever handle to evenly distribute the fluid flowing through the valve and reduce local high-pressure areas.
● The valve body and valve plate surface of the stainless steel sanitary welded manual butterfly valve with a lever handle are treated with an antibacterial coating, which can effectively prevent the growth of bacteria and microorganisms and maintain the hygiene requirements of the pipeline system.
● The stainless steel sanitary welded manual butterfly valve with a lever handle adopts a seamless integrated sealing design, combined with an innovative self-adjusting elastic sealing ring, so that the sealing performance is not affected even in high-pressure or high-temperature environments.
● The valve stem of the stainless steel sanitary welded manual butterfly valve with a lever handle adopts a double sealing structure, with an internal and external sealing ring design inside and a special anti-leakage device outside.
● The valve body and pipeline connection part of the stainless steel sanitary welded manual butterfly valve with a lever handle adopt an integrated welding structure, which avoids the dead angle and leakage problems of traditional flange connections.
● The valve stem material of the stainless steel sanitary welded manual butterfly valve with a lever handle has been specially treated, has high-temperature oxidation resistance, and can withstand use in extreme high-temperature environments.
Application
Stainless steel sanitary welded manual butterfly valve with pull rod handle is mainly used in industries with high requirements for hygiene standards. The following are several typical industries. Food processing: control liquid flow to ensure the hygiene and stability of the production line. Beverage production: adjust the flow, prevent pollution, and keep the beverage pipeline clean. Dairy products: Regulate milk flow to ensure that pipelines meet hygiene standards. Pharmaceutical industry: Control liquid delivery to meet high hygiene production requirements. Biopharmaceuticals: Control the flow of drug raw materials to maintain pollution-free delivery. Chemical industry: Used for liquid flow control to ensure the hygiene and safety of the pipeline system.
Working Principles
Keystone's stainless steel electromagnetic diaphragm butterfly valve automatically opens and closes pipeline media through an electromagnetic coil and diaphragm mechanism. When the electromagnetic coil is energized, the magnetic force pushes the diaphragm upward or drives the valve stem to rotate the butterfly plate, opening the valve and allowing smooth media flow. When de-energized, a spring or reset mechanism pushes the diaphragm back to its original position or the butterfly plate closes, with the valve plate pressing against the valve seat to form a seal and prevent media leakage. The valve body features a sanitary design, and the sealing material can be selected from PTFE or rubber, ensuring corrosion resistance and high-temperature resistance. It is suitable for automated control and remote operating systems of food, pharmaceutical, and chemical liquid pipelines.
Specification Chart
Working Pressure | 10 Bar (Max. Pressure is 16bar for but welded connection in small sizes |
Working temperature | -10ºC TO + 120ºC |
Size | 1/2”-12”, DN15-DN300 |
Grade | AISI304 and AISI316L |
FDA approved gaskets in silicone, EPDM, viton, PTFE | |
Connection | Clamp, Weld, Thread,male threaded; female threaded; flange end;union connection |
Surface | Sanitary inside polish (Ra ≤ 0.8 μm) |
Sanitary outside polish (Ra ≤1.6 μm) | |
Standard | ISO, 3A, SMS, RJT, DIN and so on |
Butterfly valve disc and body is made from forging | |
Manual or pneumatic actuated or electric actuated are chosen as per the different applications. | |
Required compressed air | 4-8Bar |
Connection of compressed air | G 1/8’’ |
Limit switch | 6-36V, DC 2nos of NPN or PNP( to be chose |
Valve parts
Body | Stainless steel AISI316L or AISI 304 (1.4301/1.4404) |
Disc | AISI304 or AISI316L |
Pull-position handle | Stainless Steel Material, Round type or square type |
Multi-position Gripper Handle | ABS gripper handle, SS gripper handle, 2/3/4/12 positions to adjustment, Universal type |
Gasket | EPDM, VITON(FPM), Silicone, different color is available |
Bushing | EPDM or PTFE, other material request |
Nut | Stainless Steel 304 or 316 Material or other request |
Bolt | Stainless Steel 304 or 316 Material or other request |
Features
● A special fluid distribution groove is designed inside the valve plate of the stainless steel sanitary welded manual butterfly valve with a lever handle to evenly distribute the fluid flowing through the valve and reduce local high-pressure areas.
● The valve body and valve plate surface of the stainless steel sanitary welded manual butterfly valve with a lever handle are treated with an antibacterial coating, which can effectively prevent the growth of bacteria and microorganisms and maintain the hygiene requirements of the pipeline system.
● The stainless steel sanitary welded manual butterfly valve with a lever handle adopts a seamless integrated sealing design, combined with an innovative self-adjusting elastic sealing ring, so that the sealing performance is not affected even in high-pressure or high-temperature environments.
● The valve stem of the stainless steel sanitary welded manual butterfly valve with a lever handle adopts a double sealing structure, with an internal and external sealing ring design inside and a special anti-leakage device outside.
● The valve body and pipeline connection part of the stainless steel sanitary welded manual butterfly valve with a lever handle adopt an integrated welding structure, which avoids the dead angle and leakage problems of traditional flange connections.
● The valve stem material of the stainless steel sanitary welded manual butterfly valve with a lever handle has been specially treated, has high-temperature oxidation resistance, and can withstand use in extreme high-temperature environments.
Application
Stainless steel sanitary welded manual butterfly valve with pull rod handle is mainly used in industries with high requirements for hygiene standards. The following are several typical industries. Food processing: control liquid flow to ensure the hygiene and stability of the production line. Beverage production: adjust the flow, prevent pollution, and keep the beverage pipeline clean. Dairy products: Regulate milk flow to ensure that pipelines meet hygiene standards. Pharmaceutical industry: Control liquid delivery to meet high hygiene production requirements. Biopharmaceuticals: Control the flow of drug raw materials to maintain pollution-free delivery. Chemical industry: Used for liquid flow control to ensure the hygiene and safety of the pipeline system.
