Category – Valves
Professional Solutions for Check Valves
Check valves are activated by the fluid’s own pressure, allowing flow in one direction while preventing backflow to the pressurized section when system pressure ceases. They are one-way valves that open in one flow direction and close in the opposite direction.
Material Science and Durability
Each application requires a specific material construction to ensure longevity. Our valves are available in grey and ductile cast iron, bronze, cast steel, alloy steel, and stainless steel. This enables seamless integration into chemical plants, glycol circuits, and wastewater treatment facilities, ensuring the valve body withstands both internal chemical attack and external environmental influences.
Swing Check Valves
- Material: Ductile cast iron
- Nominal Pressure: 16 bar
- Nominal Diameter: 25–80 mm
- Temperature Range: -10…70 °C
ACMO-FLEX Type Swing Check Valves
- Standards: EN 1074-1, EN 1074-3
- Face-to-face Dimension: EN 558 S48 (ISO 5752) (DIN 3202 F6)
- Flange Drilling: EN 1092-2 (ISO 7005-2)
- Nominal Pressure: PN 10-16
- Nominal Diameter: DN 50÷300
Swing Check Valves with Rubber Disc
- Construction: Full-bore design with rubber-coated disc
- Nominal Diameter: DN 50 ÷ 300
- Nominal Pressure: PN 10 – PN 16
- Application: Drinking water, irrigation, and wastewater
Nozzle Type Check Valves, VENTURI Profile
- Type: Venturi nozzle check valve
- Material: Alloy steel / Stainless steel
- Maximum Pressure: Up to 160 bar
- Maximum Temperature: Up to 550 °C
Disc Check Valves
- Disc: Stainless steel (AISI 304/316) or aluminum bronze
- Seat: EPDM, NBR or Viton
- Spring/Pin: Stainless steel
- Temperature Range: -20 °C to +120 °C (depending on seat material)
- Nominal Pressure: PN 10, PN 16 or PN 25
Dual Plate Check Valves
- Body: Cast iron, ductile iron or stainless steel
- Spindle/Spring/Pin: Stainless steel
- Temperature Range: -20 °C to +120 °C (up to +250 °C for metal seat)
- Nominal Pressure: PN 10, PN 16, PN 25, PN 40
Ball Check Valves
- Body: Ductile iron GJS 400-15 / 500-7
- Ball: NBR- or EPDM-coated aluminum or carbon steel
- Gasket: NBR or EPDM
- Bolts/Nuts: Stainless steel or galvanized steel
- Temperature Range: -10 °C to +80 °C
- Nominal Pressure: PN 10, PN 16
ACMO-STOP Type Diaphragm Check Valves
- Diaphragm: Natural rubber with nylon reinforcement (or EPDM/NBR)
- Bolts and Nuts: Stainless steel A2 (AISI 304)
- Coating: Epoxy powder (FBE) min. 250 microns (RAL 5005)
- Temperature Range: 0 °C to +70 °C
- Nominal Pressure: PN 10, PN 16
Check Valve 401
- Material: Ductile cast iron
- Nominal Pressure: 16 bar
- Nominal Diameter: 25–80 mm
- Temperature Range: -10 to 70 °C
Check Valve 401
- Material: Grey cast iron
- Nominal Pressure: 10, 16 bar
- Nominal Diameter: 40–350 mm / DN 400–600 upon request
- Temperature Range: -10 to +100 °C
Check Valve 275
- Material: Grey cast iron
- Nominal Pressure: 10, 16 bar
- Nominal Diameter: 40–350 mm / DN 400–600 upon request
- Temperature Range: -10 to +100 °C
Check Valve 402
- Material: Grey cast iron
- Nominal Pressure: 10, 16 bar
- Nominal Diameter: 50–300 mm
- Temperature Range: -10 to 80 °C
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