SOCLA EA Anti-Pollution Non-Return Valves

SOCLA EA Anti-Pollution Non-Return Valves protect drinking water networks against backflow contamination without recognised toxic or microbiological risks. Certified to NF antipollution standards and compliant with EN 13959 and EN 1717, they operate at pressures up to 16 bar and temperatures from -10°C to 100°C. Featuring durable materials like bronze and brass, they ensure excellent sealing at high and low pressures. These valves are suitable for clear liquids, gas, and various water distribution applications.

SOCLA BASIC CC Non Return Valves
Housing, Water Distributions, & Protection of Drinking Water Networks

The SOCLA BASIC CC Non-Return Valves are EA-type anti-pollution devices designed to prevent backflow and protect drinking water networks. Featuring a brass body, these valves are suitable for fluids up to category 2 as per EN 1717. They include upstream ball valves and downstream non-return valves, with optional pressure gauges or drains. Operating within a temperature range of 5°C to 65°C, they are ideal for ensuring safe water distribution in domestic and commercial settings.

 Technical Datasheet Mounting Instructions

Pressure: PFA 10 Bar
Size Range: 12 ... 28 mm
Body Materials: Brass, Chromed Brass, PTFE, POM, Stainless Steel, EPDM, & Steel + PVC
Approvals: ACS, KIWA, & BELGAQUA
Weight Range (KG): 0.240 ... 2.185
Versions: Compression Fitting, Female Connection, Male Connection, Swivel Nut, & More (see datasheet)
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SOCLA EA221B Non Return Valves
Housing, Water Distributions, & Protection of Drinking Water Networks

The SOCLA EA221B Non-Return Valve protects drinking water networks against backflow risks without toxic or microbiological hazards. Certified to NF antipollution standards, it operates in any position with minimal head loss and silent performance. Constructed with a brass or bronze body and a double axial guiding system, it ensures effective sealing at high and low pressures. Supporting temperatures from -10°C to 80°C, it is ideal for installations like housing and water distribution systems.

 Technical Datasheet 

Pressure: PFA 10 Bar
Size Range: 20 ... 50 mm
Body Materials: Brass, Bronze, PPO, POM, Stainless Steel, NBR, & EPDM
Approvals: ACS, NF, & BVERITAS
Weight Range (KG): 0.13 ... 0.74
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SOCLA EA223 Non Return Valves
Housing, Water Distributions, & Protection of Drinking Water Networks

The SOCLA EA223 Non-Return Valve prevents backflow in drinking water networks, protecting against pollution without recognised toxic or microbiological risks. Certified to NF antipollution standards, it operates at temperatures from -10°C to 80°C and pressures up to 16 bar. Featuring a bronze body and axial guiding with a return spring, it ensures excellent sealing in both high and low-pressure systems. Suitable for water and gas applications, it complies with EN 13959 and EN 1717 standards.

 Technical Datasheet 

Pressure: PFA 16 Bar
Size Range: 15 ... 50 mm
Body Materials: Bronze, Brass, EPDM, Silicone, & Stainless Steel
Approvals: ACS, NF, BVERITAS, BELGAQUA, & KIWA
Weight Range (KG): 0.20 ... 1.75
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SOCLA EA223D Non Return Valves
Housing, Water Distributions, & Protection of Drinking Water Networks

The SOCLA EA223D Non-Return Valve protects drinking water networks from backflow risks without recognised toxic or microbiological hazards. Certified to NF antipollution standards, it operates at pressures up to 16 bar and temperatures from -10°C to 80°C. Featuring a bronze body and axial guiding with a return spring, it provides excellent sealing at high and low pressures. Its male BSP threaded connections and compact design make it ideal for water and gas systems, ensuring compliance with EN 13959 and EN 1717 standards.

 Technical Datasheet 

Pressure: PFA 16 Bar
Size Range: 15 ... 50 mm
Body Materials: Brass, Fiber, EPDM, Silicone, Stainless Steel, & Bronze
Approvals: ACS, NF, BELGAQUA, & VA
Weight Range (KG): 0.22 ... 3.22
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SOCLA EA253 Non Return Valves
Housing, Water Distributions, & Protection of Drinking Water Networks

The SOCLA EA253 Non-Return Valve prevents backflow in drinking water networks where no toxic or microbiological risks exist. Certified to NF antipollution standards, it operates between -10°C and 100°C, with pressures up to 16 bar. Featuring a cast iron body with epoxy coating and a brass closing system, it delivers excellent sealing at high and low pressures. Suitable for water distribution and housing applications, it supports BSP threaded connections and complies with EN 1717 standards.

 Technical Datasheet 

Pressure: PFA 16 Bar
Size Range: 50 ... 65 mm
Body Materials: Cast Iron, Epoxy, DZR Brass, Stainless Steel, Silicone, Brass, & EPDM
Approvals: ACS, NF, BVERITAS, BELGAQUA, & CE Marking
Weight Range (KG): 2.6 ... 4.8
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SOCLA EA271 Non Return Valves
Housing, Water Distributions, & Protection of Drinking Water Networks

The SOCLA EA271 Non-Return Valve is designed to protect drinking water networks from backflow risks without toxic or microbiological hazards. Certified to NF antipollution standards, it operates in any position with minimal head loss and silent operation. Featuring a brass body, a double axial guiding system with a return spring, and a specially designed lip seal, it ensures reliable sealing under low and high pressures. Suitable for clear liquids and gases, it supports temperatures from -10°C to 80°C.

 Technical Datasheet 

Pressure: PFA 10 Bar
Size Range: 15 ... 50 mm
Body Materials: Brass, PPO, POM, Stainless Steel, NBR, Brass, & EPDM
Approvals: ACS, NF, BVERITAS, & KIWA
Weight Range (KG): 0.24 ... 1.33
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SOCLA EA291NF Non Return Valves
Clear Liquids, Water, Gas, Protection of Drinking Water Networks

The SOCLA EA291NF Non-Return Valve protects drinking water networks from backflow risks without recognised toxic or microbiological hazards. Certified to NF antipollution standards, it operates in any position with minimal head loss and silent performance. Constructed with a brass body and a double axial guiding system, it ensures reliable sealing at high and low pressures. Suitable for temperatures from -10°C to 65°C, it is ideal for clear liquids and drinking water applications.

 Technical Datasheet 

Pressure: PFA 10 Bar
Size Range: 15 ... 50 mm
Body Materials: Brass, POM, Stainless Steel, & EPDM
Approvals: ACS, NF, BVERITAS, BELGAQUA, & VA
Weight Range (KG): 0.13 ... 2.00
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SOCLA EA453 Non Return Valves
Housing, Water Distributions, & Protection of Drinking Water Networks

The SOCLA EA453 Non-Return Valve provides effective protection against backflow in drinking water networks without recognised toxic or microbiological risks. Certified to NF antipollution standards, it operates between -10°C and 100°C at pressures up to 16 bar. With a cast iron body and flanged connections, it features a replaceable closing kit and an inspection cover for easy maintenance. Suitable for clear water and gas, it ensures reliable sealing and meets EN 13959 and EN 1717 standards.

 Technical Datasheet 

Pressure: PFA 10 ... 16 Bar
Size Range: 40 ... 250 mm
Body Materials: Cast Iron, Epoxy, Brass, Bronze, Stainless Steel, Silicone, EPDM, PE, & Steel
Approvals: ACS, NF, BVERITAS, BELGAQUA, CE Marking, KIWA, & WRAS
Weight Range (KG): 7.65 ... 94
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Frequently Asked Questions

What is a non-return valve and how does it function?

A non-return valve, or check valve, allows fluid to flow in only one direction, preventing reverse flow. It operates automatically, opening under forward flow pressure and closing when flow reverses, thus protecting systems from potential damage or contamination.

Why are non-return valves important in drinking water systems?

Non-return valves prevent backflow, which can introduce contaminants into clean water supplies. They are crucial in maintaining the safety and quality of drinking water by ensuring that used or polluted water does not flow back into the potable water network.

What distinguishes SOCLA's Non-Return Valves from standard check valves?

SOCLA's EA Anti-Pollution Non-Return Valves are certified to NF antipollution norms and are designed specifically to protect drinking water networks against backflow that has no recognized toxic or microbiological risks to human health. They are particularly suitable for installation after water meters.

In which applications are SOCLA EA Anti-Pollution Non-Return Valves typically used?

These valves are ideal for housing, water distribution, and the protection of drinking water networks. They are particularly suitable for mounting after water meters to prevent backflow into the potable water supply.

What materials are used in the construction of SOCLA's EA 271 Non-Return Valve?

The EA 271 model comprises a brass body, PPO guide, POM closing system, stainless steel spring, and NBR or EPDM seals, ensuring durability and reliability in various operating conditions.

What are the operating temperature and pressure ranges for the SOCLA EA 251?

The EA 251 operates within a temperature range of -10°C to 65°C (short-term up to 90°C) and has a permissible operating pressure (PFA) in water up to 10 bar, depending on the nominal diameter.

How does the SOCLA EA 271 Non-Return Valve ensure reliable sealing?

The EA 271 model features a double axial guiding closing system with a return spring and a specially designed lip ring-seal, providing excellent sealing at both high and low pressures.

Are SOCLA's Non-Return Valves compliant with international standards?

Yes, these valves comply with international construction standards, including NF Antipollution according to NF EN 13959 and EN1717, ensuring they meet stringent safety and performance criteria.

Can SOCLA EA Non-Return Valves be installed in any position?

Yes, models like the EA 251 are designed to operate effectively in any position, providing flexibility in installation to suit various system configurations.

What sizes are available for SOCLA's EA 251 Non-Return Valves?

The EA 251 model is available in nominal diameters ranging from DN15 (1/2") to DN40 (2"), accommodating different system requirements.

What are the maintenance requirements for SOCLA Non-Return Valves?

SOCLA EA Anti-Pollution Non-Return Valves require minimal maintenance due to their robust construction. Periodic inspection for debris and wear on seals and moving parts is recommended to ensure optimal performance and longevity.

Can SOCLA EA Non-Return Valves be used with fluids other than water?

While primarily designed for potable water systems, SOCLA EA Non-Return Valves can handle other non-aggressive fluids. It is crucial to verify compatibility with the valve's materials and operating conditions specified in the product documentation.

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SOCLA EA Anti-Pollution Non-Return Valves