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Valvetech » Products » Check Valves » Cast Iron Dual Wafer Check Valve

Check Valves

Cast Iron Dual Wafer Check Valve

Cast Iron Dual Wafer Check Valve ​

Application

The Cast Iron Dual Wafer Check Valve is designed with two plates that swing open freely in response to fluid flow, allowing for efficient and obstruction-free passage. When the flow reverses, the plates quickly close, preventing backflow and potential damage to the system. This design ensures minimal pressure loss, making it an ideal choice for high-flow applications and fluid control systems. These valves prevent backflow and ensure the unidirectional flow of fluids, maintaining the efficiency and safety of the entire system.

The wafer-style configuration of the Cast Iron Dual Plate Wafer Check Valve makes it compact and lightweight, allowing for easy installation in tight spaces. It is compatible with various flange standards, making it adaptable to different piping systems. The dual plate design also reduces the overall size and weight of the valve while maintaining its excellent performance. Known for its exceptional durability, corrosion resistance, and heat resistance, Cast Iron makes it suitable for a wide range of industries and applications. It can withstand high temperatures and harsh environments in industries such as water treatment, oil and gas, chemical processing, and HVAC systems. Its reliable operation, low pressure drop, and robust construction make it a trusted choice for fluid control in critical applications.

Recommended: For Pricing, Availability,  Advantages, Disadvantages, and Common Industry Uses, see Valvetech Check Valves

Diagram

Cast Iron Dual Wafer Check Valve ​Diagram
# Part Material
1 Body Cast Iron ASTM A126 B
2 Disc NPDI or CF8 (304SS)
3 Stem SS410
4 Seat EPDM
5 Spring SS304
6 Shim PTFE
7 Seal NBR
8 Plug WCB

Dimensions

All measurements listed are expressed in millimetres, unless otherwise noted. Product weight is represented in kilograms. DN size is provided in millimetres and NPS size is given in inches. These values correspond to the diagram label and its associated part.

NPSDNLL1øDøD1Kg
2504333107651.52
2.5654634127802.12
3806444142943.15
410064481621174.48
512570501921455.72
615076522181708.71
8200895827322414.02
102501147832826525.40
123001147437831036.47
143501277943836049.98
164001408848941061.00
184501529853545080.00
2050015210059450598.00
24600178124720624175.00

P/T Ratings

Valvetech’s Pressure/Temperature Ratings according to ANSI B16.10

Temperature ° Celsius -10°C to +38°C 93°C 149°C 204°C 260°C 316°C 371°C 400°C
Pressure Bar 19.6 17.9 15.9 13.8 11.7 9.7 7.6 6.5

Other Products

Ductile Iron Swing Check
Valve Flanged VT493N

Weight: 11kg – 235kg

Sizes: DN 50 – 350

Class: 150

Pressure: PN16

Temperatures: -10°C to 400°C

Cast Iron Swing Check
Valve Flanged VT493

Weight: 11kg – 461kg

Sizes: DN 50 – 350

Class: 125

Pressure: PN14

Temperatures: -10°C to 230°C

Specifications

Models

R16, R16-N

Body Material

Iron Grade

Seat

EPDM

Disc

Dual Plated NPDI or 304SS

Drill Tables

Table 10, 16, D, ASA150

For Drill Table Specifications, see Valvetech Drill Table

Standards

Design & Manufacture to JB/T8937

End standard GB/T17241.6

Face to Face conform to JB/T8937

Shell test 2.4Mpa

Seal test 1.76Mpa

Air test 0.6Mpa

Services

Water, Oil, Gas

Industries

Petrochemicals and Petroleum, Refineries, Primary Energy, Agriculture, Water Works, HVAC

Priority Media

Acetylene, Air, Alumina, Carbon Monoxide, Cement, Diethylene Glycol, Methanol, Nitrogen Gas, Potassium Acetate, Silicone Oil, Starch, Dry Sulphur Dioxide

For full Wafer list, see Media Compatibility Table

Inventory Code and Description

CIDUALR16-NN

CI DUAL R16-N WAFER CHECK NPDI DISC

Cast Iron Dual Model R16 NPDI 2023 Wafer

Check Valve Nickel Plated Ductile Iron Disc

CIDUALR16N

CI DUAL R16-N WAFER CHECK NPDI DISC

Cast Iron Dual Model R16 NPDI 2023 Wafer

Check Valve Nickel Plated Ductile Iron Disc

CIDUALR16-NS

CI DUAL R16-N WAFER CHECK SS DISC

Cast Iron Dual Model R16 Steel Wafer

Check Valve 2023 Stainless Steel Disc

CIDUALR16

CI DUAL WAFER CHECK VALVE SS DISC

Cast Iron Dual Model R16 Steel Wafer

Check Valve Stainless Steel Disc

Also Known As

Double Door Valve

Reflux Valves

Non-return Valve

Stop Valve

One-Way Valve

Download

Please click the following PDF icon to download this specification sheet

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