Boiler Blowdown Valve: 4000 Series

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How the 4000 Series operates:

Line pressure and heavy spring hold disc firmly against the body seat, sealing off the flow. When operated, the disc slides across the body seat pushing harmful boiler scale away, and wiping clean the precision lapped surface. Hand adjustment of the post packing is eliminated. Post packing is self-adjusted by a spring and line pressure. This prevents destructive erosion and leakage of stuffing box


- Straight-through flow
- Leak proof seal disc has self lapping action, actually improves with use.
- Self wiping action of disc – cannot hang-up on boiler scale 

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