Product Description
The wafer type check valve is engineered for industries requiring efficient prevention of fluid backflow, targeting engineers and procurement teams managing pipeline integrity. Designed by a specialized wafer check valve manufacturer, it suits systems with limited space due to its compact wafer style. Additionally, the inclusion of spring check valve mechanics guarantees automatic operation that maintains flow direction without manual intervention. This product is particularly beneficial for users seeking a dependable dual check valve solution to enhance safety in water supply, oil pipelines, and chemical environments, ensuring seamless incorporation into varied piping systems.
Constructed with a nodular cast iron body lined with NBR or EPDM, the wafer type check valve provides robust corrosion resistance against a spectrum of fluids. It features stainless steel springs and aluminum bronze or stainless steel discs delivering a resilient and soft sealing interface crucial for tight closure. Compliant with API 594 and DIN3202-K3 design standards and pressure ratings up to 200 psi, this spring check valve embodies precise engineering. The valve’s design supports flange connections per ASME, BS EN, and AS standards, accommodating sizes from DN50 to DN600, enabling compatibility and ease of replacement in existing systems.
This spray check valve is invaluable across multiple sectors, including water treatment, petrochemical pipelines, power plants, and shipbuilding. Its rapid closure function mitigates water hammer risks, thereby protecting sensitive equipment and pipeline infrastructure. As a product from a reputable dual check valve manufacturer, it integrates smoothly into complex processing environments, ensuring consistent fluid flow and contamination prevention. By maintaining directional flow integrity, the valve supports operational efficiency and safety, delivering measurable benefits in maintaining equipment longevity and compliance with stringent industry regulations.
The wafer type check valve is distinguished by its slim, wafer-type profile facilitating space-efficient, dual-position installation in horizontal and vertical pipelines. Engineered by a dedicated wafer check valve manufacturer, it incorporates mounting loops for easy installation and secure fit within flanged connections. The spring check valve mechanism ensures immediate response to flow changes, minimizing pressure surges and water hammer effects. Its modular design with corrosion-resistant materials like ductile iron and specialized seat linings enables versatile application across fluid systems with demanding chemical compatibility and structural durability.
This dual check valve offers exceptional operational reliability with automatic, wear-resistant sealing that reduces maintenance frequency. Users benefit from the soft sealing disc construction that enhances valve lifespan and ensures leak-tight performance under variable pressure conditions. The valve’s compactness reduces pipeline footprint and allows fast integration, providing high return on investment by minimizing downtime and downtime-related costs. As a product stemming from an experienced wafer check valve manufacturer, it delivers consistent performance in both potable water and aggressive fluid applications, supporting users’ needs for dependable process continuity.
Product Features:
Spring loaded; Automatic operation; Resilient seat.
Compact design; Suitable for horizontal or vertical.
Quick closure to reduce water hammer.
Technical Data:
Size: DN50-600(2”-24”)
Design stndard：API 594; DIN3202-K3.
Test standard: API 598; EN12266-1; ISO5208
Pressure Ratings: 200 psi.PN16
Flange End Connection: ASME Class 125 or 150, BS EN1092-1 PN10/PN16, AS 2129 Table D/E.
Part Material:
Alignment Body: Ductile Iron GGG40
Insert Body: Ductile Iron GGG40
Set Screw: Steel
Seat: NBR/EPDM
Spring: Stainless Steel SS304/SS316
Disc: Aluminium Bronze, SS304/SS316
Shaft: Stainless Steel SS316
Shaft Plug: Stainless Steel SS316
Use Scenarios
In municipal and industrial water treatment plants, controlling backflow is critical to avoid contamination. The wafer type check valve plays a vital role by automatically preventing reverse flow in pipeline networks, ensuring the purity and safety of potable water. Its quick response due to spring check valve technology limits potential contamination risks and complies with health and safety standards. This valve integrates with existing pipework through standardized flanges, supporting streamlined maintenance and reliable operation under typical treatment facility pressures and flow rates, thereby preserving system integrity and regulatory compliance.
The dual check valve is essential within oil transportation pipelines to prevent hazardous backflow and maintain pressure stability. Operated by a reliable wafer check valve manufacturer, the valve’s robust construction includes chemical-resistant seat linings and durable springs compatible with hydrocarbon fluids. Its quick closing action minimizes water hammer and pressure surges, safeguarding pipeline components and refining equipment. This product is well-adapted for seamless incorporation into petrochemical processing plants and bulk fuel transport systems, providing critical protection against reverse flow damage and enhancing overall operational safety and efficiency.
ABOUT US
Hebei Diefei Valve Co., Ltd., which was established in 1986,is a specialized factory gathering the medium and lower pressure valve developing, manufacturing and selling together. We established Crane Ningjin Valve Co., Ltd with Crane Valve USA in 1995.
Our main products are Butterfly valve, Check Valve, Gate Valve, Ball Valve, Valve Actuator and so on. These valves are available extensive to the pipelines of oil, metallurgy, chemical industry, medical, light textile, paper-making, water and electricity ,tap water company ,central air conditioning system etc.
We own perfect manufacturing process and testing way of casting, matching and assembling. We are authorized the Quality Management system certificate of ISO9001:2015, Environmental Management system certificate of ISO14001:2004,CE Certificate and the Approval of Manufacturer Certificate of DNV. Our company products are mainly sold to many large-scale agglomerations like CNPC, Sinoepc, CSPC, DAIKIN , Haier, Midea and etc. And exported to USA, Europe, Africa, Southeast Asia, Taiwan etc countries and area.
We are willing to serve our customers at home and abroad with our excellent products and services.
CERTIFICATE OF NSF61/372
PACKAING AND TRANSPORTATION
