ROBO Spring-Loaded Silent Check Valve

ROBO Spring-Loaded Silent Check Valve (SCV)

The ROBO Spring-Loaded Check Valve (Silent Check Valve – SCV) is a key component in piping systems, designed to prevent backflow and protect pumps and industrial equipment. With a robust construction made from ductile iron, stainless steel 304, and EPDM rubber, the product ensures excellent tightness, smooth operation, and long-lasting performance across various working environments.

Manufactured according to international standards BS EN 1074-3 and BS EN 558-1, the ROBO SCV can withstand a pressure rating of PN10/16 and operate within a temperature range of -10°C to 80°C. It is ideal for water supply and drainage systems, HVAC, firefighting (FACP), and other industrial applications—a reliable and cost-effective solution that enhances pipeline efficiency and minimises maintenance costs.

ROBO Silent Check Valve

Outstanding Features of the ROBO Spring-Loaded Check Valve

The ROBO check valve stands out for its combination of advanced engineering design and durable materials. Its key features include:

Effective backflow prevention: The spring-loaded mechanism enables quick response, preventing reverse flow that could damage pumps or equipment.
Quiet operation: The Silent Check Valve design minimizes noise and water hammer in the pipeline.
High-quality materials:
- Body: Ductile Iron ASTM A536
- Shaft & Spring: Stainless Steel 304
- Disc: EPDM-coated for superior sealing and corrosion resistance.
Multiple connection standards: Compatible with BS4504, DIN 2632, and DIN 2633, ensuring easy installation across different systems.
Stable pressure and temperature performance: Operates effectively within PN10/16 pressure range and -10°C to 80°C temperature range.

ROBO one-way valve specification drawing

Technical Specifications

Item	Specification
Design Standard	BS EN 1074-3
Face-to-Face	BS EN 558-1
Connection Standards	BS4504, DIN 2632, DIN 2633
Working Pressure	PN10/16, JIS10K
Working Temperature	-10°C ~ 80°C
Body Material	Ductile Iron ASTM A536
Disc	EPDM-coated Ductile Iron
Shaft & Spring	Stainless Steel 304
Stopper	Brass ASTM B824

Available Sizes: DN50 – DN300

(Detailed dimension tables available in the ROBO Valve Catalogue.)

Applications

Thanks to its modern design and reliable anti-backflow function, the ROBO SCV is widely used in industrial and civil systems, including:

Urban water supply and drainage systems – Prevent reverse flow and contamination.
Pumping stations – Protects pumps, pipelines, and auxiliary equipment from back pressure.
Firefighting systems (FACP) – Ensures a stable, ready water supply without leakage.
HVAC systems – Maintain steady fluid flow in chilled or hot water circuits, improving energy efficiency.
Industrial manufacturing – Ideal for controlling the flow of water, oil, and process fluids.

Economic Benefits

The ROBO check valve not only delivers high performance and durability but also provides significant cost advantages:

Reduced maintenance and repair costs due to leak-free, automatic spring closure design.
Extended equipment lifespan by protecting pumps and pipelines from reverse pressure.
Energy efficiency through optimised flow structure and minimal pressure loss.
Investment optimisation with a wide range of sizes (DN50–DN300) suitable for various systems.
Long-term reliability thanks to premium materials and adherence to international standards.

Installation and Maintenance Guide

Before installation:

Inspect the valve for cracks or deformation.
Clean flange surfaces and remove debris.

Installation steps:

Position the valve between two flanges, ensuring the arrow on the valve body aligns with the flow direction.
Centre the valve properly to avoid misalignment.
Place gaskets on both ends and tighten bolts in a star pattern for even pressure.

Post-installation checks:

Test the valve’s open/close movement manually.
Run water flow to ensure no leakage.

Maintenance recommendations:

Inspect every 3–6 months, depending on service conditions.
Clean the valve disc, spring, and EPDM seal if debris accumulates.
Replace worn components with genuine parts when necessary.
Test the valve operation before resuming full system service.

Following these steps ensures optimal performance, durability, and minimised maintenance costs over time.

Conclusion

The ROBO Spring-Loaded Silent Check Valve (SCV) offers a durable, quiet, and efficient solution for water supply, HVAC, firefighting, and industrial systems. It provides reliable backflow prevention, economic efficiency, and long service life—making it a top choice for engineers and project managers.

For genuine ROBO valves (DN50–DN300) at competitive prices, contact Bao Tin Steel, an authorised distributor:

📞 Hotline: 0932 059 176
📧 Email: bts@thepbaotin.com