Published on Worcester Farris Flowserve Valves and Other Brands from Boig and Hill Inc. (https://www.boighill.com)

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4000-S (58)

Item Series : 4000 Series
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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 surfaces. Hand adjustment of the post packing is eliminated, Post packing is self-adjusted by a spring and line pressure. This prevents destructive errosion and leakage of stuffing box.
Part Number 4000 Series Size [inches] 1|1 1/4|1 1/2|2|2 1/2
Available Sizes/Pressure 2 inch at 200 psi.|2 1/2 inch at 100 psi.|1 inch at 550 psi.|1 1/4 inch at 450 psi.|1 1/2 inch at 270 psi. Primary Service Rating 600
Max. Blow-Off Service 910 Suitable For Use With Index Letter B|E|F
Body Material Steel Post 17-4 PH Stainless
Disc Hard Stainless Lever Arm Ductile Iron
Post Packing Non-Asbestos Springs 17-7PH
Body Gasket Corrugated Stainless Steel Operating Wrench Ductile Iron
Rating 300|600 Seat Bushing Hard Stainless
End Type SCR
Source URL: https://www.boighill.com/everlasting/4000-s-58

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[1] https://www.boighill.com/contact?height=600&width=500&iframe=true&brand=Everlasting&series=4000 Series&category=Everlasting&item=4000-S (58)