Due to the first-class quality of our Ductile Iron Butterfly Valve, Through Conduit Slab Gate Valve, Cryogenic Extension Gate Valve, our customers always regard our company as the most reliable company. We take quality improvement as the focus point and establish and improve the enterprise standard system. Relying on high and new technology, we carry out the development strategy of industrial diversification and product diversification, and carry out scientific and technological innovation in an all-round way. We bring high quality assurance to our customers in terms of product quality, construction quality and after-sales service. We will always provide our customers with a full range of quality services and regard customer satisfaction as the only standard by which we measure our own work.

Description & Features

The dual plate wafer check valves has two spring loaded half-moon shaped discs that rotate about their shaft. The disc plates are kept shut by the torsion spring. When fluid flows in the forwards direction, the pressure of the fluid causes the disc plates to hinge open, allowing flow. Dual plate check valve is closed by the spring as soon as flow ceases, before any reverse flow can occur.

● Light weight, versatile design, 80 to 90% lighter than conventional full-body check valves.

● Reduces pipe supports, simplifies piping, easier, less costly installation.

● Reduced thermal and seismic considerations.

● No need for additional expensive support.

● Optimum space utilization; simplified piping.

● Spring-loaded, double door design has low cracking pressure.

● Discs open 85° to ensure positive closing.

● Materials and trims available for all services within temperature range.

Specifications

Size Range	Body Material
2"-8" DN50-DN200	WCB, CF8, CF8M, CF3, CF3M
Pressure Rating	Disc Material
Class150-Class2500 PN16-PN200	WCB, CF8, CF8M, CF3, CF3M
End Connection	Seat Material
Wafer Type	F6a, STL6, 304,316, Hastelloy, Monel, etc.
Structure Style	Stem Material
Full Port, Dual Plate	2Cr13, 304, 304L, CF8M, CF3M
Actuator Options	Design Standard
/	API594, API 6D, ASME B16.34, DIN3356, JB/T8937
Temperature Range	Face to Face Standard
-29℃~425℃	API 594, API 6D, DIN3202, JB/T8937
Connection Standard	Test Standard
Flange Drilling: ASME B 16.5/ASME 16.47, DIN2543-2545, JB/T9112~24	API598, ISO5208, DIN3230, JB/T9092

Brand	DAGO or OEM
Test	100% quantity tested before delivery
Guarantee	12 months from date of shipment or Negotiable
MOQ	1 Set
Sample	Available
Color	Customer required or manufacturer default
Packing	Plastic bag wrapped inside, seaworthy wooden case outside
Certificate	API6D, CE, TUV, ISO9001, ISO14001, ISO45001, Mill Test Certificate
Country of Origin	Zhejiang, China
HS Code	848180 (universal), 8481804090 (China)
Port	Shanghai or Ningbo
Payment Terms	T/T, L/C, Western Union

The company is serious and rigorous, meticulously transcends, and dedicated, will adhere to the service-based and quality-based business philosophy; through R&D and innovation, we will continue to provide customers with more high-quality and low-cost intelligent production equipment; strive to become a global The most famous Cast Iron Wafer Type Dual Plate Check Valve supplier service provider. All our staffs are taking unity, hard work, high efficiency and pragmatism as the enterprise spirit to make the company's business flourish! The company has always been committed to the introduction and application of advanced technology production methods to improve the overall production and equipment maintenance level.

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