SOCLA EC & ED Double Check Valves

SOCLA's EC and ED Double Check Valves are engineered to protect drinking water networks by preventing backflow contamination. Constructed with durable materials such as DZR brass and featuring components like POM (polyacetal) plugs and NBR or EPDM seals, these valves ensure reliable performance in various applications. They are available in multiple configurations, including flanged and threaded connections, to accommodate diverse installation requirements. Compliant with international standards, SOCLA's double check valves are suitable for housing, water distribution, and industrial processes.

SOCLA EC453/453 Double Check Non-Return Valves
Protection of Drinking Water Networks

The SOCLA EC453/453 Double Check Non-Return Valves provide backflow prevention by combining two EA453 units for enhanced security. Designed for pressures up to 16 bar and temperatures from -10°C to 100°C, they feature ductile iron bodies with flanged connections and ensure reliable sealing at both high and low pressures. Compliant with NF EN 13959 and EN 1717 standards, they are suitable for clear liquids and gas in housing and water distribution systems.

 Technical Datasheet 

Pressure: PFA 10 ... 16 Bar
Size Range: 40 ... 250 mm
Body Materials: Ductile Iron, Epoxy, DZR Brass, PE, Brass, EPDM, Stainless Steel, & Polyester
Approvals: ACS, NF, BVERITAS, BELGAQUA, CE Marking, & KIWA
Weight Range (KG): 17 ... 190
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SOCLA ED2211 Double Check Non-Return Valves
For Drinking Water Protection, Clear Liquids, Water, & Gas

The SOCLA ED2211 Double Check Non-Return Valves provide backflow prevention in drinking water networks, ensuring protection against contamination without recognised toxic or microbiological risks. Certified to NF antipollution standards, they operate at pressures up to 10 bar and temperatures from -10°C to 80°C. Featuring a double axial guiding system with a return spring, they deliver reliable sealing at high and low pressures. Suitable for clear liquids and gas, they support BSP threaded connections.

 Technical Datasheet 

Pressure: PFA 10 Bar
Size Range: DN15
Body Materials: Brass DZR, POM, NBR Nitrile, Stainless Steel, & EPDM
Approvals: ACS, & BVERITAS
Weight Range (KG): 0.112
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SOCLA ED2231 Double Check Non-Return Valves
Protection of Drinking Water Networks, & Building

The SOCLA ED2231 Double Check Non-Return Valves prevent backflow and protect drinking water networks against contamination without recognised toxic or microbiological risks. Certified to NF antipollution standards, they operate at pressures up to 10 bar and temperatures from -10°C to 80°C. Featuring a double axial guiding system with a return spring, they ensure effective sealing at high and low pressures. Suitable for clear liquids and gas, they support BSP threaded female connections.

 Technical Datasheet 

Pressure: PFA 10 Bar
Size Range: DN15 ... DN50
Body Materials: POM, NBR Nitrile, Laiton, Stainless Steel, & Brass
Approvals: ACS, & BVERITAS
Weight Range (KG): 0.130 ... 1.560
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Frequently Asked Questions

What is a double check valve, and why is it important?

A double check valve is a backflow prevention device consisting of two internally loaded, independently operating check valves. It prevents the reverse flow of water, safeguarding potable water supplies from potential contamination. This is crucial in maintaining water quality and complying with health and safety regulations.

What are the key features of SOCLA's EC453 double check valve?

The SOCLA EC453 double check valve features a ductile iron body with an epoxy coating, ensuring durability and suitability for potable water applications. It includes inspection covers for easy maintenance and allows in-situ cartridge replacement. The valve operates in any orientation and is designed to prevent water hammer.

In which applications are SOCLA EC453 double check valves commonly used?

SOCLA EC453 double check valves are commonly used in water softening systems, whole-site protection where Fluid Category 3 backflow prevention is required, and other applications as deemed necessary by water authorities.

What materials are used in the construction of the SOCLA EC453 double check valve?

The SOCLA EC453 double check valve is constructed with a ductile iron body coated with epoxy for corrosion resistance. It features a stainless steel spring closing mechanism and EPDM seals to ensure watertight closure at both high and low pressures.

How does the SOCLA ED2231 double check valve differ from the EC453 model?

The SOCLA ED2231 double check valve is designed with a DZR brass body and features female threaded connections. It is suitable for applications requiring a compact and corrosion-resistant solution. In contrast, the EC453 model has a ductile iron body with flanged connections, catering to different installation requirements.

What approvals do SOCLA's double check valves have?

SOCLA's double check valves, including the EC453 and ED2231 models, are approved by various international standards organizations, ensuring their compliance with safety and performance requirements. Specific approvals may vary by model and region.

Can SOCLA double check valves be installed in any orientation?

Yes, SOCLA double check valves like the EC453 are designed to operate in any position, providing flexibility in installation. However, to comply with certain regulations, such as WRAS, and to ensure optimal performance, it is recommended to install the valve in the horizontal position.

What maintenance is required for SOCLA double check valves?

SOCLA double check valves are designed for easy maintenance. For instance, the EC453 model allows for in-situ cartridge replacement via inspection covers, facilitating quick servicing without removing the valve from the pipeline.

What sizes are available for SOCLA's EC453 double check valves?

The SOCLA EC453 double check valves are available in various sizes, typically ranging from DN40 (1½") to DN250 (10"), accommodating different pipeline diameters and flow requirements.

Are SOCLA double check valves suitable for industrial applications?

Yes, SOCLA double check valves are suitable for various applications, including industrial settings, housing, water distribution, and protection of drinking water networks. Their robust construction and compliance with international standards make them versatile for different environments.

How do SOCLA double check valves prevent water hammer?

The SOCLA EC453 double check valve features a stainless steel spring closing mechanism that ensures smooth operation, thereby preventing water hammer—a common issue caused by sudden changes in water flow.

Are SOCLA double check valves WRAS-approved for use in potable water systems?

Yes, many SOCLA double check valves, including the EC453 and ED2231 models, hold WRAS (Water Regulations Advisory Scheme) approval. This certification confirms their suitability for use in potable water systems in the UK, ensuring compliance with water safety standards.

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SOCLA EC & ED Double Check Valves