High Pressure Tied Diaphragm Regulator - 959 & NPR959 Series | Product Series

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High Pressure Tied Diaphragm Regulator - 959 & NPR959 Series

High Pressure Tied Diaphragm Regulator - 959 & NPR959 Series

The 959 regulator is a high pressure, tied diaphragm regulator that is designed to provide shut off of corrosive or hazardous gases if a leak occurs and is capable of controlling a broad range of gases and liquids with process proven field reliability.

Technical Specifications

  • Body Material: 316L Stainless Steel (std), Hastelloy C-22
  • Compression Member Material: 316L Stainless Steel (std), Hastelloy C-22
  • Diaphragm Material: 316L Stainless Steel (std), Hastelloy C-22
  • Seat Material: PCTFE (std), Vespel
  • Poppet Material: 316L Stainless Steel (std), Hastelloy C-22, Spring: 316 Stainless Steel (std), Inconel X750
  • Poppet Screen Material: Hastelloy C-22
  • Filter Material: 316L Stainless Steel (std), Hastelloy C-22
  • Cap Material: Nickel Plated Brass
  • Nut Material: 316L Stainless Steel
  • Knob Material: ABS (Black) (959), ABS (White) (NPR959)
  • Burst Pressure: 10,500 psig (724 barg)
  • Proof Pressure: 5,250 psig (362 barg)
  • Flow Rate: Cv: 0.04 (std), 0.2
  • Internal Leak Rate: Bubble Tight
  • External Leak Rate: Bubble Tight
  • Supply Pressure Effect: Cv 0.04 0.6 psig/100 psig
    Cv 0.2 1.5 psig/100 psig
  • Volume: 5.41 (without fittings) cm3
  • Weight: 2 lb, 0.9 kg
  • Maximum Inlet Pressure Rating: "Cv 0.04 3,500 psig (240 barg) Cv 0.2 1,250 psig (86 barg) (Both based on Cv option) "
  • Outlet Pressure Rating: 1-30 psig (2 barg),
    3-100 psig (7 barg),
    5-150 psig (10.3 barg) (959)
    -25 in Hg - 0-30 psig (NPR959)
  • Maximum Operating Temperature: 65 °C, 150 °F
  • Minimum Operating Temperature: -40 °C, -40 °F
Safety Warning

Full Product Description

The 959 regulator can be used in a wide range of application conditions. The 959’s design characteristics such as a tied diaphragm and a unique compression member give you precise control with added safety and consistent performance over the operational range of the regulator. Superior internal component alignment and contamination control make the 959 the perfect solution for your pressure regulator needs.

Markets:
• Fluid & Gas Handling
• Process Control

Features/Benefits:
• Tied diaphragm for added safety
• Unique compression member loads the seal to the body without requiring a threaded nozzle or additional seals
• Metal-to-metal diaphragm-to-body seal assures high leak integrity
• Adjustment range spring may be replace without breaking diaphragm seal to body and exposing the wetted area to contamination
• Cleaned for O2 service is standarde

Applications:
• Analyzer sample systems
• Point-of-use for corrosive or specialty gases
• Research labs
• Instrument calibration
• Breathing systems  

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