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![451-series-pvc-threaded-spring-check-valves](https://soval.com/media/catalog/product/cache/f4714ec973dc474544925827dba7e18e/e/9/e91d4d374e2092a33364a6750015f9aee91ad1df_451.jpg)
451 Series - PVC Threaded Spring Check Valves
![650-series-brass-threaded-spring-check-valves](https://soval.com/media/catalog/product/cache/f4714ec973dc474544925827dba7e18e/6/8/681656e0bddf70845f25bde0b3ca1c3bd5201a93_650.jpg)
650 Series - Brass Threaded Spring Check Valves
640 Series - Brass Threaded Swing Check Valve
Features:
- Threaded
- Forged Brass
- Swing Type
- Not for Potable Water in USA
- 200 WOG
- Temperature Range: -20F to 150F
- Positive one way flow for Plumbing and Irrigation with minimal pressure loss