957ISR

[SPECIAL ORDER] Reduced Pressure Zone Devices (Grooved), DN100-DN250

  • Replaceable check disc rubber
  • Extremely compact design
  • 70% Lighter than traditional designs
  • 304 (Schedule 40) stainless steel housing & sleeve
  • Groove fittings allow integral pipeline adjustment
  • Patented torsion spring checks provide lowest pressure loss
  • Unmatched ease of serviceability
  • Bottom mounted cast stainless steel relief valve

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 957ISR

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet or contact us. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


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