PRODUCT INFORMATION

835-M – High Pressure Surge Anticipating Control Valve

The Model 835-M High Pressure, Surge Anticipating Valve is an off-line, hydraulically operated, piston actuated valve. The valve, sensing line pressure, opens in response to the pressure drop associated with abrupt pump stoppage. The pre-opened valve dissipates the returning high pressure wave, eliminating the surge.

The Model 835-M smoothly closes drip tight as quickly as the relief feature allows, while preventing closing surge. The valve also relieves excessive system pressure.

• Eliminates surge in all pumping systems:
  • Booster & deep well, single & variable speed
• Eliminates surge in all distribution networks:
  
  • Municipal, high-rise buildings, sewage, HVAC, irrigation
  • Difficult to main, remote locations, & older systems

FEATURES & BENEFITS

• Robust structure, piston actuated - high pressure service
• Replaces surge air vessels
  • Relives surge, fail safe open
  • Minimal maintenance
  • Economy of space
  • Lower investment & maintenance costs
  • Expecially economic for higher pressure ratings
• Line pressure driven
  • Independent operation
  • No motor required
  • Long term drip tight sealing
  • Adjustable hydraulic actuation
• In-line serviceable - Easy maintenance
• Double chamber - Moderated valve closing (no surges )
• Obstacle fee, full bore - Uncompromising reliability
• Balanced seal disk
• Major Additional Features
  • Solenoid control - 835 - 55 -M
  • Sending diaphragm *for sewage) - 835 -Md
  • Quick pressure relief valve - 83Q

LITERATURE

710-20-SOLENOID-CONTROLLED-VALVE Brochure