Forged Steel Flanged Swing Check Valves
Automatic non-return check valve providing reliable backflow prevention across a Class 150 to 1500 range.

The Forged Steel Flanged Swing Check Valves is an automatic non-return valve that allows flow in one direction and closes to prevent backflow whenever line pressure reverses. Closure is achieved by a swing element rather than a ball, so the valve seats under reverse pressure with no external operation required. Built in carbon, low-temperature and stainless steel grades across a Class 150 to 1500 pressure range and sizes from 1/2 inch to 24 inch, it suits a broad spread of process, pipeline and utility duties where reliable backflow protection is essential. Design, testing and face-to-face dimensions follow recognised API, ASME, BS and GOST standards.
Specifications
Key Features
- Automatic non-return operation prevents reverse flow
- Swing closure element for reliable seating
- Wide material range including carbon, low-temp and stainless grades
- Class 150 to 1500 pressure ratings, sizes 1/2" to 24"
- Tested to API 598; face-to-face to ASME B16.10
- NACE-compliant options available
Options
- NACE compliant
- Special materials
- Alternative trim selections
Standards & Certifications
- API 594
- API 6D
- API 602
- GOST 3327
- BS 1868
- BS EN 13709
Dimensions
| NPS | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 |
| L | 4-1/4 (108) | 4-1/2 (117) | 5 (127) | 5-1/2 (140) | 6-1/2 (165) | 8 (203) |
| H | 2-1/2 (62) | 2-1/2 (62) | 3 (78) | 3-1/4 (82) | 4 (102) | 4-3/4 (120) |
| Weight | 6.2 (2.8) | 7.7 (3.5) | 9.9 (4.5) | 18.5 (8.4) | 19.8 (9) | 27.7 (12.6) |
| NPS | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 |
| L | 6 (152) | 7 (178) | 8-1/2 (216) | 9 (229) | 9-1/2 (241) | 10-1/2 (267) |
| H | 2-1/2 (62) | 2-1/2 (62) | 3 (78) | 3-1/4 (82) | 4 (102) | 4-3/4 (120) |
| Weight | 5.9 (2.7) | 8.1 (3.7) | 11.6 (5.3) | 21.1 (9.6) | 22.4 (10.2) | 30.2 (13.7) |
| NPS | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 |
| L | 6-1/2 (165) | 7-1/2 (190) | 8-1/2 (216) | 9 (229) | 9-1/2 (241) | 10-1/2 (292) |
| H | 2-1/2 (62) | 2-1/2 (62) | 3 (78) | 3-1/4 (82) | 4 (102) | 4-3/4 (120) |
| Weight | 6.6 (3) | 8.8 (4) | 13.0 (5.9) | 20.9 (9.5) | 22.0 (10) | 34.3 (15.6) |
Get in Touch
Have a question or ready to order? Reach out and our team will get back to you with pricing and availability.
- Phone1300 62 4020
- International+61-8-9377 0449
- Emailinfo@PRPL.com.au
- AddressPerth Warehouse
6/11 Guthrie Street, Osborne Park, WA 6017
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