Cast Iron Swing Check Valve
- Weights:
- Sizes:
- Class:
- Pressure:
- Temperatures:
- 11kg - 461kg
- DN 50 – 350
- 125
- PN14
- -10°C to 230°C

Application
The Cast Iron Swing Check Valve consists of a hinged disc that swings open when the fluid or media flows in the forward direction, allowing uninterrupted flow. When the flow reverses, the disc quickly closes preventing any backflow and maintaining system integrity. This design feature makes it ideal for applications where backflow prevention is critical, such as in water supply systems, sewage treatment plants, and industrial processes.
One of the key advantages of the cast iron swing check valve flanged is its material strength. Cast iron is renowned for its durability and resistance to high temperatures and pressures, making it suitable for demanding environments. Cast iron also provides excellent corrosion resistance, ensuring the valve’s longevity and reducing maintenance requirements. Its robust construction, durability, and versatility make it a reliable choice for ensuring pipelines’ smooth operation and efficiency.
Recommended: For Pricing, Availability, Advantages, Disadvantages, and Common Industry Uses, see Valvetech Check Valves
Diagram

# | Part | Material |
---|---|---|
1 | Bonnet | ASTM A126 B |
2 | Bolts and Nuts | ASTM A307 B / ASTM A536 |
3 | Middel Gasket | Graphite and Steel |
4 | Pin | ASTM A276 420 |
5 | Arm | ASTM A216 WCB |
6 | Bolts and Nuts | ASTM A307 B / ASTM A536 |
7 | Disc Seal Face | 13Cr |
8 | Disc | ASTM A126 B |
9 | Seal Seat RIngs | 13Cr |
10 | Body | ASTM A126 B |
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.
NPS | DN | L | øD | øD1 | C | H | Kg |
---|---|---|---|---|---|---|---|
2 | 50 | 203 | 152 | 120 | 16 | 117 | 11 |
2.5 | 65 | 216 | 178 | 139 | 18 | 127 | 14 |
3 | 80 | 241 | 191 | 152 | 19 | 145 | 19 |
4 | 100 | 292 | 229 | 190 | 24 | 161 | 32 |
5 | 125 | 330 | 254 | 216 | 24 | 190 | 48 |
6 | 150 | 356 | 279 | 241 | 25 | 248 | 59 |
8 | 200 | 495 | 343 | 298 | 29 | 303 | 107 |
10 | 250 | 622 | 406 | 362 | 30 | 365 | 171 |
12 | 300 | 698 | 483 | 432 | 32 | 410 | 245 |
14 | 350 | 787 | 533 | 476 | 35 | 533 | 461 |
P/T Ratings
Valvetech’s Pressure/Temperature Ratings according to ANSI B16.10
Temperature ° Celsius | -10°C to +65°C | 100°C | 120°C | 140°C | 150°C | 160°C | 200°C | 230°C |
Pressure Bar | 13.8 | 12.7 | 12.1 | 11.6 | 11.4 | 10.8 | 9.8 | 8.6 |
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 Wafer
Check Valve R16
Weight: 1.5kg – 172kg
Sizes: DN 50 – 600
Class: 150
Pressure: PN16
Temperatures: -10°C to 120°C
Specifications
Models
VT493
Body Material
Iron Grade
Trim
13 Chrome
Drill Tables
Table 10, 16, D, ASA150
Standards
Design Standard MSS SP-70
Flanges conform to ANSI B16.1
Face to Face conform to ANSI B16.10
Hydrostatically tested to BS 5150
Shell Test Water 350 PSIG 2.41Mpa
Seat Test: Water 200 PSIG 1.38Mpa
Services
Water, Oil, Gas
Industries
Petrochemicals and Petroleum, Refineries, Primary Energy, Agriculture, Water Works, HVAC
Priority Media
Acetylene, Borax, Castor Oil, Caustic Soda, Detergents, Diethylene Glycol, Gasoline, Hydraulic Oil, Linseed Oil, Methyl Acetone, Nitrogen, Oxygen, Mercury, Propane Gas, Sodium Sulphate
Inventory Code and Description
CISWING
CI SWING CHECK 13CR SS TRIM FLANGED
Cast Iron Swing Check 13 Chrome Stainless
Steel Trim Flanged
Also Known As
Check Valve
Non-Return Valve
Stop Valve
One-Way Valve
Download
Please click the following PDF icon to download this specification sheet

Product Brochure
1MB, PDF