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  • TESCOM™ Anderson Greenwood Instrumentation H7/H71 Series Hand Valves
Tescom-P-H7-H71

TESCOM™ Anderson Greenwood Instrumentation H7/H71 Series Hand Valves

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Product Description

H7 series valves are designed for safe, repetitive bubble-tight closure, simple maintenance and a long, trouble-free life. The H71 is designed to meet increasing pressures in oil and gas production, providing bubble-tight shutoff in severe operating conditions.

Specifications

Materials
CS, 316 SS, Monel®, Hastelloy®
Seats
Metal
Connections
1/4", 1/2", 3/4" NPT
Pressure (max)
H7: 6000 psig (414 barg)
H71: 10000 psig (689 barg)
Temperature (max)
H7: 1000°F (538°C)
H71: 500°F (260°C)
Temperature (min)
316 bonnet assemble: -70°F (-57°C)

Features

  • Ball end stem eliminates seat galling, provides bubble-tight shutoff and long life. Hardened, non-rotating ball ensures perfectly aligned closure.
  • Packing below threads prevents lubricant washout, thread corrosion, process contamination and eliminates galling.
  • Easily adjustable PTFE packing decreases replacement downtime and increases valve life.
  • Dust cover protects stem from lubricant contamination.
  • Safety back seating prevents stem blowout or accidental removal and provides a metal-to-metal secondary stem seal while in the fully open position.
  • ENC plated 316 SS stem prevents galling or freezing of stem threads. CS valves use a 303 SS stem for 'hard-to-soft' contact to prevent galling.
  • Rolled stem and bonnet threads provide additional strength.
  • Mirror stem finish in the packing area provides smooth operation and extends packing life.
  • Metal-to-metal body-to-bonnet seal in constant compression prevents bonnet thread corrosion, eliminates possible tensile breakage and gives a reliable seal point.
  • Metal seat can be resurfaced for longer valve life.

Documents & Drawings