Check Valve

In 2015, DONJOY carried out a comprehensive technical update of the check valve. After the upgrade, the check valve has a smaller dead angle, smaller flow resistance, and the valve core is sealed with full PTFE. Satisfied with automatic welding, the technology meets ASME BPE, 3-A-6800, EHEDG high clean technical requirements.
◎Check valve is designed to prevent fluid from flowing back and ensure the flow to one way direction.
◎It can be used to reduce the loss of fluid back suction,avoid pipe is shock by liquid
◎It is used in the food-processing, beverages, winery, oil, cosmetics,pharmaceuticals and chemicals industries.
◆SIZE: 1/2"-8", DN10-DN200
◆Material: 304/316L
◆ Pressure: 10bar
◆Opening pressure: 0.02bar
◆Negative pressure: -0.9bar
◆Temperature: -30 ° C to 130 ° C (150 ° C optional)
◆ valve body structure: nut type, clamp, flange
◆Interface: various special interfaces such as welding, clamp, thread, flange, etc.

◎Check valve is designed to prevent fluid from flowing back and ensure the flow to one way direction.
◎It can be used to reduce the loss of fluid back suction,avoid pipe is shock by liquid
◎It is used in the food-processing, beverages, winery, oil, cosmetics,pharmaceuticals and chemicals industries.
◎The valve is open when pressure of the fluid exceeds the spring pressure and it is closed when the two pressures are close equal.And stronger counter-pressure also makes the valve closed.

◎Specifications: DN-50/2" TO DN-300/12"
◎Boby/shaft: AISI 316L/304
◎Spring: AISI 304
◎Seal: EPDM according to FDA177.2600
◎Surface Treatment: Ra ≤0.8 μm
◎Seal: NBR, FPM (Viton) or PTFE. FDA 177.2600(optional)
◎Connections: weld, thread, clamp, DIN, SMS, RJT, IDF, ISO,3A
◎Max. pressure：10 bar
◎Opening pressure：0.3bar(DN-25)0.2bar(DN-32/40)0.1bar(DN-50/100)
◎Working temperature ： -10℃ to 130℃(EPDM)

◎Check valve is designed to prevent fluid from flowing back and ensure the flow to one way direction.
◎It can be used to reduce the loss of fluid back suction,avoid pipe is shock by liquid
◎It is used in the food-processing, beverages, winery, oil, cosmetics,pharmaceuticals and chemicals industries.
◎The valve opens when pressure of the fluid exceeds the spring pressure.It is closed when the two pressures are close equal.And stronger counter-pressure also makes the valve closed.

◎Specifications: DN-25/1" TO DN-100/4"
◎Boby/shaft: AISI 316L/304
◎Spring: AISI 304
◎Seal: EPDM according to FDA177.2600
◎Surface Treatment: Ra ≤0.8 μm
◎Seal:NBR, FPM (Viton) or PTFE. FDA 177.2600(optional)
◎Connections: weld, thread, clamp, DIN, SMS, RJT, IDF, ISO,3A
◎Max. pressure：10 bar
◎Opening pressure：0.3bar(DN-25)0.2bar(DN-32/40)0.1bar(DN-50/100)
◎Working temperature ： -10℃ to 130℃(EPDM)

◎Check valve is designed to prevent fluid from flowing back and ensure the flow to one way direction.
◎It can be used to reduce the loss of fluid back suction,avoid pipe is shock by liquid
◎It is used in the food-processing, beverages, winery, oil, cosmetics,pharmaceuticals and chemicals industries.
◎The valve is open when pressure of the fluid exceeds the spring pressure and it is closed when the two
pressures are close equal.And stronger counter-pressure also makes the valve closed.

◎Specifications: DN-25/1" TO DN-100/4"
◎Boby/shaft: AISI 316L/304
◎Spring: AISI 304
◎Seal: EPDM according to FDA177.2600
◎Surface Treatment: Ra ≤0.8 μm
◎Seal:NBR, FPM (Viton) or PTFE. FDA 177.2600(optional)
◎Connections: weld, thread, clamp, DIN, SMS, RJT, IDF, ISO,3A
◎Max. pressure：10 bar
◎Opening pressure：0.3bar(DN-25)0.2bar(DN-32/40)0.1bar(DN-50/100)
◎Working temperature ： -10℃ to 130℃(EPDM)

◎Specifications:DN8-DN50,1/2"-2"
◎Material：CF8/304，CF8M/316
◎Nominal pressure：PN1.6，2.5，4.0，6.4MPa
◎Strength test pressure：PN2.4，3.8，6.0，9.6MPa
◎High pressure seal pressure test：1.8，2.8，4.4，7.1MPa
◎Applicable medium：H1 H-(16-64)C Water, oil, gas
◎Applicable temperature：-40~180℃

◎Check valve is designed to prevent fluid from flowing back and ensure the flow to one way direction.
◎It can be used to reduce the loss of fluid back suction,avoid pipe is shock by liquid
◎It is used in the food-processing, beverages, winery, oil, cosmetics,pharmaceuticals and chemicals industries.
◎The valve is open when pressure of the fluid exceeds the spring pressure and it is closed when the two pressures are close equal.And stronger counter-pressure also makes the valve closed.
◎Specifications: DN-25/1" TO DN-100/4"
◎Boby/shaft: AISI 316L/304
◎Spring: AISI 304
◎Seal: EPDM according to FDA177.2600
◎Surface Treatment: Ra ≤0.8 μm
◎Seal: NBR, FPM (Viton) or PTFE. FDA 177.2600(optional)
◎Connections: weld, thread, clamp, DIN, SMS, RJT, IDF, ISO,3A
◎Max. pressure：10 bar
◎Opening pressure：0.3bar(DN-25) 0.2bar(DN-32/40) 0.1bar(DN-50/100)
◎Working temperature ： -10℃ to 130℃(EPDM)