Check valves

DN: 6 mm - 8 mm
Pressure: 0 bar - 1,000 bar
Temperature: -50 °C - 85 °C

Available in two different nominal sizes, this check valve protects upstream equipment from possible damage caused by back pressure and prevents contamination. Thanks to its compact and space-saving ...

Pressure: 700 bar

Manually operated check valve. Used to hold load with single or double acting cylinder. Manually opened to allow oil to flow back to oil reserve when cylinder retracts.

Pressure: -100,000 Pa - 700,000 Pa
Temperature: 0 °C - 60 °C

Minimize the pressure drop of other circuit when a workpiece falls down. Fall prevention valve prevents the properly picked up work-piece from falling, even when several vacuum pads are without work-piece, causing ...

Pressure: 0.1 bar - 0.9 bar
Temperature: 0 °C - 60 °C

The joint made of a flame-retarded resin is highly resistant to spatters (UL94 V-0 equivalent). The cover prevents malfunction of the release ring due to spatter. Flame-retarded plug is newly introduced. For price options, please ...

DN: 10, 12, 6, 8, 4 mm
Pressure: 0 MPa - 0.9 MPa
Temperature: 0 °C - 60 °C

Check Valve permits the air flow in one direction but checks the flow in the opposite direction, thus keeping the output pressure at a constant level. Usable in vacuum retention state ...

DN: 0.125 in - 2 in
Pressure: 2 bar - 10 bar
Temperature: -10 °C - 60 °C

Series of uni-directional valves from brass hexagonal bar, female threaded. In line mounting they allow the compressed air to flow in one direction only; therefore, they are useful in those applications where no return ...

Closing clapet valve for industrial system of centralized suction. The air pipe coupling is possibile trough a standard union (both not included). The valve body present on the bottom an internal thread ...

DN: 2 in - 12 in
Pressure: 300 psi
Temperature: 0 °C - 80 °C

Model HCV, UL Listed Swing Check Valve, also known as NON-Return Valve, is commonly used in water pumping in Fire Systems. The main function the Swing Check Valve ...

DN: 2 in - 12 in
Pressure: 350 psi
Temperature: 0 °C - 80 °C

Model HCV-350GG, theUL Listed Groove Swing Check Valve, allows and easy and faster installation, this valve is commonly used in water pumping in Fire Systems. T he main function the ...

DN: 2 in - 12 in
Pressure: 0 bar - 20 bar
Temperature: -15 °C - 80 °C

Model CHF, The Silent Check Valve plays an important role on piping, especially applied on the outlet of the pump. The silent check valve applied should be carefully ...

Pressure: 50 bar

Xl-3 single line oil filling valve provides accurate and fail safe oil dosage, which is not affected by viscosity, temperature or pressure. The new valve body allows a large number of new application ...

Pressure: 10 bar
Temperature: -10 °C - 70 °C

... engraved on the body) and siopped in the reverse way. DATASHEET Recommended tubings: according to the fitting connected to the valve. Applicatron field: pneumatic installations fed with filtered. lubricated air.

Pressure: 2 bar - 10 bar
Temperature: -10 °C - 70 °C

It is used when two valves hâve to opéra te the same equipment. The signal, no matter from which of the two valves it cornes, is re-ceived by the shuttle valve and trasmitted to the device ...

DN: 10 mm - 100 mm
Pressure: 0.2 bar

... passing direction – reflux inhibitor Fluids • Neutral media free from solids and aggressive liquid or gaseous media if the valve components that contact the media are resistant to the service temperature according to ...

DN: 15 mm - 50 mm

• PVC materials, PP • EPDM gaskets, FPM • Gluing connections, soldering socket, threaded, DIN or ANSI flanges Advantage Low pressure loss and reliable chewing performance even with small differential pressure Chemical resistance ...

DN: 15 mm - 150 mm
Pressure: 10 bar

... prescribed direction of passage – reflux inhibitor Flow media • Neutral media and aggressive liquid or gaseous media if the valve components that contact the media are resistant to the service temperature according ...

DN: 50 mm - 600 mm
Pressure: 25 bar

CHECK VALVE The valve closes totally the pipe line when back flow occurs. The valve is complete with an hydraulic control circuit able to regulate operation’s speed ...

DN: 80 mm - 300 mm
Pressure: 1 bar - 16 bar

The valve closes totally the pipe line when back flow occurs. The valve is complete with an hydraulic control circuit able to regulate operation’s speed during closing, preventing surge. TYPICAL APPLICATIONS Pump ...

DN: 0.125 in - 0.5 in
Pressure: 0 bar - 10 bar
Temperature: -10 °C - 70 °C

... unidirectional connection, non-return valves, slide valve, quick exhaust valve Flow regulators 041, 042, 043 Unidirectional flow regulator (block shaped) Valves in ...

DN: 0.125, 0.5, 0.25 in
Pressure: 0 bar - 10 bar
Temperature: -10 °C - 70 °C

... unidirectional connection, non-return valves, slide valve, quick exhaust valve Flow regulators 041, 042, 043 Unidirectional flow regulator (block shaped) Valves in ...

DN: 4, 12, 6, 8, 10 mm
Pressure: 2 bar - 10 bar
Temperature: -10 °C - 70 °C

... unidirectional connection, non-return valves, slide valve, quick exhaust valve Flow regulators 041, 042, 043 Unidirectional flow regulator (block shaped) Valves in ...

DN: 13 mm
Pressure: 40 bar
Temperature: 450 °C

... infiltration at the ladle purging plug a check valve could be installed in the supply piping. The check valve maintains the immediate pressure at the plug in case the ...

DN: 25 mm - 1,200 mm
Pressure: 2.5 bar - 100 bar
Temperature: -10 °C - 150 °C

Di Nicola manufactures Swing check valves in carbon steel ASTM 216 WCB / GP 240GH + N and stainless steel with high nickel content alloys for conditions of extreme corrosion from over fifty years with ...

DN: 50 mm - 1,200 mm
Pressure: 10, 16 bar
Temperature: -30 °C - 200 °C

Di Nicola manufactures non return valve type swing check , Venturi , double swing , Clasar type , ball type , butterfly type in ductile iron and high nickel content alloys for extreme ...

DN: 100 mm - 1,200 mm
Pressure: 25, 40, 10, 16 bar
Temperature: -10 °C - 150 °C

Swing check valves are used on: acqueducts heatings conditioning pumping stations industry Istallation Installation in horizontal, vertical and battered positon. Quick closure without water hammer. Low head loss.

Pressure: 3 bar - 230 bar
Temperature: -30 °C - 80 °C
Flow rate: 14, 250 l/min

Holding Valve, double check valve up to 230 BAR, G1/4 OR Manifold type, HYDRAULIC and PNEUMATIC The valve consists of a one-piece housing and is therefore repeatedly ...

Pressure: 0 bar - 320 bar

Screw-In Valve up to 320 bar Miniature-Non Return Valve as Screw-In Valve from stainless steel for thread M6. – Suitable for high pressure areas – Simple mounting hole – Space-saving ...

Pressure: 0 bar - 300 bar

Miniature Check Valve - Individual positioning - Simple mounting hole - Valve combinations possible - For hydraulic and pneumatic applications - Working pressure up to 300 bar - ...

DN: 250 mm - 500 mm
Pressure: 0.9 bar

MULTI in-line non-retainable is a space-saving, one-sided cover valve ideal for set up on the interiors of pipe works and have an ISO PN 10 flange in order to be attached to the perpendicular walls (grade 1.4401 (316). ...

DN: 200 mm - 600 mm
Pressure: 1 bar

Multi N is a pipe outlet flap valve consists of a system that can eradicate the back flow of water in case of sudden increase in its level. It works by opening its flap to flow in the normal direction and then closes ...

DN: 200 mm - 600 mm
Pressure: 1 bar

MULTI NB 200 to 600 is a diagonal cover outlet valve ideal for restricted areas, supplied with an ISO PN 10 flange in order to be attached to the perpendicular walls (grade 1.4401 (316) or a basic flange (particular ...

DN: 0.375 in
Pressure: 200 bar
Flow rate: 0 l/min - 20 l/min

The PKV-06 valve, made of stainless steel W.St.1.4301, allows unrestricted flow from V to C ports and blocks flows in the opposite direction until pressure is applied on the pilot port. PKV-06 is used as a static load holder.

DN: 0.5 in
Pressure: 200 bar

Application PKV-30 is used as a static load holder. Specifications The PKV-30 valve, made of stainless steel W.St.1.4301, allows unrestricted flow from V to C ports and blocks flows in the opposite direction until pressure ...