Single Stage, Pressure Regulator - QR4000 & NPR4000 Series | ParkerGB

Single Stage, Pressure Regulator - QR4000 & NPR4000 Series | Product Series

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Single Stage, Pressure Regulator - QR4000 & NPR4000 Series

Single Stage, Pressure Regulator - QR4000 & NPR4000 Series

The QR4000 & NPR4000 are excellent choices for gas cabinets and bulk gas distribution. Designed for enhanced leak integrity and for applications involving negative delivery pressures.

Technical Specifications

  • Body Material: 316L Stainless Steel
  • Compression Member Material: Inconel 625
  • Diaphragm Material: Hastelloy C-22
  • Pin Material: Hastelloy C-22 (NPR4000 Only)
  • Poppet Material: Hastelloy C-276, Spring: Inconel X750
  • Filter Material: Hastelloy C-22
  • Seat Material: PCTFE (std), PEEK, Vespel
  • Seat Retainer Material: 316L Stainless Steel
  • Back-Up Washer Material: 316 Stainless Steel
  • Cap Material: Nickel Plated Brass
  • Nut Material: 316L Stainless Steel
  • Knob Material: Aluminum, ABS (Black) (QR4000) ABS (White) (NPR4000)
  • Flow Rate: Cv: 0.06 (std), 0.02, 0.15
  • Internal Leak Rate: < 4 x 10-8 scc/sec He
  • External Leak Rate: < 2 x 10-10 scc/sec He
  • Supply Pressure Effect: 0.23 psig/100 psig (0.16 barg/7 barg) (0.02 Cv) (QR4000) 0.6 [sig/100 psig (0.04 barg/7 barg) (0.06 Cv) (QR4000) 1.5 psig/100 psig (0.1 barg/7 barg) (0.15 Cv) (QR4000)
  • Volume: 4.0 (without fitting) cm3
  • Weight: 1.5 lb, 0.7 kg
  • Maximum Inlet Pressure Rating: NPR4000: 250 psig (@Cv: 0.02 - 0.15) | QR4000: 400 psig (@Cv: 0.02-0.15) | QR4001/4002/4004/4005: 1250 psig (@Cv 0.15), 4000 psig (@Cv 0.02-0.06) | QR4003/4015: 4000 psig (@Cv 0.02-0.15)
  • Outlet Pressure Rating: 1-10 psig (0.07 barg), 1-30 psig (2 barg),1-60 psig (4 barg), 2-100 psig (7 barg),3-250 psig (17 barg), 5-150 psig (10 barg),20-500 psig (35 barg) (QR4000)100 torr - 10 psig (-26 in Hg - 0.7 barg) 100 torr - 30 psig (-26 in Hg - 2 barg) 100 torr - 60 psig (-26 in Hg - 4 barg) (NPR4000)
  • Maximum Operating Temperature: 66 (PCTFE), 135 (PEEK), 260 (Vespel) °C, 150°F PCTFE, 275°F PEEK, 500°F Vespel °F
  • Minimum Operating Temperature: -40 °C, -40 °F
Safety Warning

Full Product Description

Parker Veriflo Division’s QR4000 & NPR4000 Series are non-tied diaphragm, pressure reducing regulators that provide precise control of process gas resulting in a stable flow and pressure supply to downstream systems making it an excellent choice for valve manifold boxes, gas cabinets, and many semiconductor manufacturing applications.

Markets:
• Semiconductor Fab
• Gas Companies

Features/Benefits:
• “VeriClean”, Veriflo’s custom low sulfur high purity 316L Stainless Steel™ enhances electropolishing, welding and corrosion resistance
• Unique compression member loads the seal to the body without requiring a threaded nozzle or additional seals to atmosphere
• Threadless internal nozzle assembly
• Metal-to-metal diaphragm to body seal assures high leak integrity
• Minimal particle generation and entrapment
• Positive upward and downward diaphragm stops
• Standard full internal electropolish

Applications:
• Gas Cabinets
• Valve Manifold Boxes
• Bulk Gas Distribution

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