Silent Check Valves

The Silent Check Valve is the preferred choice in applications where silent operation and cost are of major concern. Its short linear stroke and spring return action combine to close the valve prior to flow reversal which effectively eliminates the shock and water hammer normally associated with the sudden stoppage of a reverse flow.

Product Overview

  • Threaded Style available in sizes 1/2"-2"
  • Wafer Style available in sizes 2"-10"
  • Globe Style available in sizes 2 1/2 ”- 42”
  • Ideal for clean water service - contact factory for other service
  • Manufactured under a certified ISO 9001 quality system

Certifications

Features

  • Silent Operation - fast closure to prevent check valve slam water hammer
  • Precision metal-to-metal seating
  • Expanded Body - provides full flow area
  • Double guided disc - prevents vibrations and wear
  • Resilient Seat - available for zero leakage
  • Heavy Duty Spring is tested for over 100,000 cycles
  • Able to be installed in all flow directions

Specifications

Valve Size Product Description Drawing Number
1/2" - 42" 1400A/1800 Silent Check Valve VM-1400A/1800-S

Materials of Construction

Valve Size Product Description Drawing Number
1/2" - 2" 1400THR.1 Silent Check Valve - Threaded Style (Lead Free) VM-1400THR.1-M
2" - 10" 1400A Silent Check Valve - Wafer Style (Lead Free) VM-1402A.1-M
2 1/2" - 10" 1400A Silent Check Valve - Wafer Style, Buna-N Seat (Lead Free) VM-1402ABN.1-M
2 1/2" - 12" 1800A Silent Check Valve - Globe Style (Lead Free) VM-1802A.1-M
2 1/2" - 12" 1800A Silent Check Valve - Globe Style, Buna-N Seat (Lead Free) VM-1802ABN.1-M
14" - 42" 1800 Silent Check Valve - Globe Style (Lead Free) VM-1814.1-M
14" - 42" 1800 Silent Check Valve - Globe Style, Buna-N Seat (Lead Free) VM-1814BN.1-M

Dimensions

Valve Size Product Description Drawing Number CAD Version
1/2" - 2" 1400THR Silent Check Valve - Threaded Style VMC-1400THR.1 CAD-1400THR.1
2" - 10" 1400A Silent Check Valve - Wafer Style VMC-1402A CAD-1402A
2" - 10" 1400A Silent Check Valve - Wafer Style, Buna-N Seat VMC-1402ABN CAD-1402ABN
2 1/2" - 12" 1800A Silent Check Valve - Globe Style VMC-1802A CAD-1802A
2 1/2" - 12" 1800A Silent Check Valve - Globe Style, Buna-N Seat VMC-1802ABN CAD-1802ABN
14" - 42" 1800 Silent Check Valve - Globe Style VMC-1814 CAD-1814
14" - 42" 1800 Silent Check Valve - Globe Style, Buna-N Seat VMC-1814BN CAD-1814BN

Manuals

Valve Size Product Description Drawing Number
1/2" - 2" Threaded Silent Check Valve SCV-OM2
2" - 42" Silent Check Valve SCV-OM1

Technical Data

Product Description Drawing Number CAD Version
Pressure Temperature Ratings SS-120  
Globe Style Silent Check Valve Flange Installation Requirements SS-974F  
Resilient Seating Detail SS-2071  
Dynamic Characteristics of Various Check Valves SS-1886  
Dynamic Characteristics of Silent Check Valves SS-1464  
Headloss Chart - Wafer Style SS-1859  
Headloss Chart - Globe Style SS-1860  
Installation Requirements - Wafer Style SS-2070  
Dynamic Characteristics of Check Valves White Paper  
Application Chart Chart  
Wafer Style Silent Check PDF CAD
Globe Style Silent Check PDF CAD