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Airgas® Model C645B Stainless Steel High Purity Two Stage Pressure Regulator With 1/4" FNPT Connection And Threaded Seat

Airgas® Model C645B Stainless Steel High Purity Two Stage Pressure Regulator With 1/4" FNPT Connection And Threaded Seat

By
Airgas

Airgas Part #:Y12C645B-AG

Manufacturer Part #:Y12-C645B


$1,428.46 /Each
Each

Item Details

  • This series of two-stage, high-purity 316 stainless steel regulators is designed for non-corrosive analytical and process applications requiring precise, stable delivery pressure control. The two-stage design yields a delivery pressure change of less than 0.04/100 psi inlet change. Convoluted 316 stainless steel diaphragms provide excellent regulating characteristics and corrosion resistance, and the threaded-seat design allows for internal vacuum purging. The metal-to-metal diaphragm seal prevents contamination by eliminating the need for a soft seal and provides a leak-rate design of less than 2 x 10–8ccs helium. This minimizes cleanup time in vacuum purging and yields lower residual contaminant levels. A diaphragm packless outlet valve with a 1/4" compression fitting is provided for flow control and to maintain system purity. Captured bonnet ports with optional vent adapters are standard on both stages and allow the venting of hazardous gases in the event of diaphragm failure. These regulators are ultrasonically cleaned for the most demanding high-purity service.

Features

  • Filtered Seat for added gas stream purity and extended service life.
  • Convoluted 316 Stainless Steel Diaphragms provide superior leak integrity without contamination from a non-metallic liner or seal.
  • Bonnet Vent Ports (with optional bonnet vent adapters) allow venting of hazardous gases in the event of diaphragm failure.
  • Standard Threaded Bonnet (with optional collar-mount nuts) for easy panel mounting.
  • Diaphragm Packless Valve (with 1/4" Compression fitting) promotes system purity.
  • Four Outlet Pressure Ranges provide application pressure compatibility.

Specifications

  • Maximum Rated Inlet Pressure: 3,000 psig
  • Outlet Pressure Ranges: 0-50 psig
  • Flow Capacity: Cv=0.05
  • Ambient Operating Temperature: -40° F to +165° F
  • Designed Leak Rate: 2 x10-8ccs (helium)
  • Weight: 4 lbs
  • Ports: ¼" FNPT
  • Delivery Gauge: 0-60
  • Capacity: 270 scfh @ Max Delivery Pressure
  • Decay Inlet Characteristic: 0.04/100 psi

Product Attributes

Model

» C645B

Usage

» High Purity

Material

» Stainless Steel

Regulator Type

» Two Stage Regulator

Inlet Connection

» 1/4" FNPT

Outlet Connection

» 1/4" Compression

Max Outlet Pressure

» 50 psig

Gauge Diameter

» 2 1/2"

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