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M400 6

Part of the M400 Series

Ordering Code: 250903

UPC: 098268549089

Lead Free: YES

6 In Single Chamber Main Valve With Mechanical Lift Check

This 6 inch single chamber drop check main valve is used as the main valve for booster pump control valves with a mechanical lift check feature. It is designed with a two-piece disc and diaphragm assembly that opens and closes as commanded by the pilot control system. The lower portion of this two-piece assembly is a mechanical check feature, which acts independent of diaphragm position or pilot control system and provides immediate check action when flow ceases, preventing reverse flow. This valve features a globe pattern ductile iron ASTM A536 body and cover with NSF listed fusion bonded epoxy coating, Buna-N disc and diaphragm assembly, and stainless steel trim. The operating pressure is 250 psi and operating maximum temperature is 160 degrees F.

Product Features

  • Epoxy coated to prevent corrosion
  • Mechanical lift check
  • Class 150 flanged
  • Globe pattern
Brand Name Watts
Lead Free YES
Model Number M400 6
Part Number 250903
Series M400