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Instantly add the KCY Series Two-Stage Diaphragm-Sensing, Pressure-Reducing Regulator and 50,000+ more product series to your store or catalog  
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Swagelok Two-Stage Diaphragm-Sensing, Pressure-Reducing Regulator

KCY Series Two-Stage Diaphragm-Sensing, Pressure-Reducing Regulator

Brand: Swagelok Company
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The KCY series is designed for use in applications requiring constant outlet pressure even with wide variations in inlet pressure. 
 
This two-stage regulator is comparable to two single-stage regulators connected in series. The first stage is factory set to reduce the inlet pressure to 500 psig (34.4 bar). 
 
The second stage can be adjusted with the handle to achieve the required outlet pressure. This two-stage arrangement minimizes the supply-pressure effect caused by fluctuating inlet pressure, such as with a depleting gas cylinder. 
 
As inlet pressure drops below the setting of the first stage, the regulator then functions as a single-stage regulator. The first-stage pressure setting can be reduced while monitoring the pressure at the interstage port, but lower flow may result.
Features
  • Convoluted, nonperforated diaphragm
  • Metal-to-metal diaphragm seal
  • Excellent set-point stability
  • High-flow, dual-gauze type filter positively retained in inlet port
  • Maximum Inlet Pressure
    • psig: 3,000 to 6,000
    • bar: 206.8 to 413
    • kPa: 20,680 to 41,368
  • Pressure Control Range
    • psig: 0 to 10
    • bar: 0 to 0.68
    • kPa: 0 to 68.9
    • through psig: 0 to 500 (bar: 0 to 34.4, kPa: 0 to 3,447)
  • Maximum Operating Temperature
    • 80° C (176° F) with PCTFE
    • 200° C (392° F) with PEEK
    • 100° C (212° F) with PEEK and inlet pressure greater than 3600 psig
  • Process Connection: 1/4" Female NPT
  • Actuator: Knob, Anti-tamper Nut
  • Materials of Construction
    • Enclosure: 316 Stainless Steel, Brass CW721R
    • Diaphragm: Alloy X-750
    • Poppet: S17400 Stainless Steel
    • Seat: PCTFE, PEEK

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Specifications

Brand

Actuator Type

  • Anti-Tamper Nut
  • Knob

Diaphragm Material

  • Alloy X-750 (Inconel)

Enclosure, Body Material

  • 316 Stainless Steel
  • Brass CW721R

Flow Rate

  • 0.06 Cv
  • 0.20 Cv
  • 0.50 Cv

Media

  • Gas

Mounting

  • None
  • Panel

NPT Connection

  • 1/4” NPT Female

Poppet Material

  • S17400 Stainless Steel

Pressure Range

  • bar: 0 to 34.4
  • kPa: 0 to 3,447
  • psig: 0 to 500

Process Temperature

  • 80° to 200° C (176° to 392° F)

Relief

  • High Flow

Seat / Seal Material

  • PCTFE
  • PEEK

Special Cleaning & Packaging

  • ASTM G93 Level E-Cleaned
  • SC-11

Stem Material

  • 316 Stainless Steel

Supply Pressure - Maximum

  • bar: 206 to 413
  • kPa: 20,684 to 41,368
  • psig: 3,000 to 6,000

Supply Pressure Effect

  • 0.01 to 0.13 %

Vent

  • Captured & No Self Vent
  • Non-Venting
  • Self & Captured Vent
  • Self-Venting

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