• Ratio: 1:1, 1:2, 1:3, 2:1, 3:1, 1:4, 4:1, 1:5, 5:1, 1:6
  • Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
  • Ambient Temperature: -40° to 93.3°C (-40° to 200°F)
  • Port Size: 1/4", 3/8"
  • Port Threads: NPT, BSPP (Parallel), BSPT (Tapered)
  • Options:
    • Tapped Exhaust
    • By-Pass Valve
    • Non-Relieving
    • Negative Bias
    • Silicone Elastomers
    • Fluorocarbon (Viton) Elastomers
  • Material of Construction:
    • Body & Housing: Aluminum
    • Trim: Zinc Plated Steel, Brass
    • Elastomer: Nitrile on Dacron Fabric
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
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8 Models In Stock

20812
20812
$149.00
  • 1:1 (1)
  • 1/4" FNPT (2)
  • Ratio

    1:1
  • Port Size

    1/4" NPT
  • Port Thread

    NPT
  • Elastomers

    Nitrile on Dacron
  • Relief

    Relieving
  • Increased Adjustability

    None
  • Exhaust Port

    Straight
20812E
20812E
$232.00
  • 1:1 (1)
  • 1/4" FNPT (2)
  • Tapped Exhaust (E)
  • Ratio

    1:1
  • Port Size

    1/4" NPT
  • Port Thread

    NPT
  • Elastomers

    Nitrile on Dacron
  • Relief

    Relieving
  • Increased Adjustability

    None
  • Exhaust Port

    Tapped Exhaust
20813
20813
$76.00 While Supplies Last
  • 1:1 (1)
  • 3/8" FNPT (3)
  • Ratio

    1:1
  • Port Size

    3/8" NPT
  • Port Thread

    NPT
  • Elastomers

    Nitrile on Dacron
  • Relief

    Relieving
  • Increased Adjustability

    None
  • Exhaust Port

    Straight
20813I
20813I
$95.00 While Supplies Last
  • 1:1 (1)
  • 3/8" FNPT (3)
  • By-pass Valve (I)
  • Ratio

    1:1
  • Port Size

    3/8" NPT
  • Port Thread

    NPT
  • Elastomers

    Nitrile on Dacron
  • Relief

    Relieving
  • Increased Adjustability

    By-Pass Valve
  • Exhaust Port

    Straight
20822
20822
$87.00 While Supplies Last
  • 1:2 (2)
  • 1/4" FNPT (2)
  • Ratio

    1:2
  • Port Size

    1/4" NPT
  • Port Thread

    NPT
  • Elastomers

    Nitrile on Dacron
  • Relief

    Relieving
  • Increased Adjustability

    None
  • Exhaust Port

    Straight
20822E
20822E
$164.00 While Supplies Last
  • 1:2 (2)
  • 1/4" FNPT (2)
  • Tapped Exhaust (E)
  • Ratio

    1:2
  • Port Size

    1/4" NPT
  • Port Thread

    NPT
  • Elastomers

    Nitrile on Dacron
  • Relief

    Relieving
  • Increased Adjustability

    None
  • Exhaust Port

    Tapped Exhaust
20832
20832
$84.00 While Supplies Last
  • 1:3 (3)
  • 1/4" FNPT (2)
  • Ratio

    1:3
  • Port Size

    1/4" NPT
  • Port Thread

    NPT
  • Elastomers

    Nitrile on Dacron
  • Relief

    Relieving
  • Increased Adjustability

    None
  • Exhaust Port

    Straight
20842E
20842E
$138.00 While Supplies Last
  • 2:1 (4)
  • 1/4" FNPT (2)
  • Tapped Exhaust (E)
  • Ratio

    2:1
  • Port Size

    1/4" NPT
  • Port Thread

    NPT
  • Elastomers

    Nitrile on Dacron
  • Relief

    Relieving
  • Increased Adjustability

    None
  • Exhaust Port

    Tapped Exhaust

Selected Configuration

Model #:

20813

Price:
$76.00 USD
Availability:
In Stock (50+)
Min. Qty:
1 Item

Configuration

reset configuration

Flow Capacity

  • 45 SCFM (76.5 m³/Hour) at psig: 100 (bar: 7, kPa: 700) Supply, psig: 20 (bar: 1.5, kPa: 150) Output
  • 76.5m³/Hour (30)

Supply Pressure - Maximum

  • bar: 17
  • kPa: 1,700
  • psig: 250

Supply Pressure Effect

  • bar: 0.007 to 0.041
  • kPa: 0.7 to 4.1
  • psig: 0.1 to 0.7

Output Pressure - Maximum

  • bar: 10
  • kPa: 1,000
  • psig: 150

Ambient Temperature

  • -40° to 93° C (-40° to 200° F)

Sensitivity

Sensitivity is dependent on ratio selected.
  • 1" WC (2.54 cm)
  • 1/2" WC (1.27cm)
  • 1/4" WC (0.64 cm)
  • 1-1/2 Inches WC (3.8 cm)
  • 1-1/4 Inches WC (3.18 cm)
  • 3/4 Inch WC (1.9 cm)

Exhaust Capacity - Relieving Units Only

  • 11 SCFM (18.7 m³/Hour)
  • 12.8 to 18.7m³/Hour
  • 7.5 SCFM (12.8 m³/Hour) where downstream Pressure is psig: 5 (bar: 0.35, kPa: 35) above output Pressure set point of psig: 20 (bar: 1.5, kPa: 150)
  • 7.5 to 11 SCFM

Ratio

  • 1:1
  • 1:2
  • 1:3
  • 1:4
  • 1:5
  • 1:6
  • 2:1
  • 3:1
  • 4:1
  • 5:1

Process Connection - Threaded

  • 1/4" Female NPT
  • 3/8" Female NPT
  • 1/4" Female BSPP
  • 1/4" Female BSPT
  • 3/8" Female BSPP
  • 3/8" Female BSPT

Environmental Protection

  • Acceptable for use in Zones 1 and 2 for gas atmosphere; Groups IIA and IIB and Zones 21 and 22 for dust atmospheres

Relief

Available relief types listed below, relieving is standard.
  • Non-Relieving
  • Relieving

Vent

Available vent/exhaust port types listed below, straight is standard.
  • Straight
  • Tapped Exhaust

Enclosure/Body Material

  • Aluminum

Trim Material

  • Brass
  • Zinc-Plated Steel

Elastomers

Available elastomers listed below, nitrile on dacron is standard.
  • FluoroCarbon (Viton)
  • Nitrile on Dacron
  • Silicone
19513-11

19513-11

Fairchild Service Kit, Model 20, 1:1 Ratio

19513-11I

19513-11I

Fairchild Service Kit, Model 20, 1:1 Ratio w/ bypass

19513-11N

19513-11N

Fairchild Service Kit, Model 20, 1:1 Ratio, Non-Relieving

19513-12

19513-12

Fairchild Service Kit, Model 20, 1:2 Ratio

19513-13

19513-13

Fairchild Service Kit, Model 20, 1:3 Ratio

19513-14

19513-14

Fairchild Service Kit, Model 20, 1:4 Ratio

19513-15

19513-15

Fairchild Service Kit, Model 20, 1:5 Ratio

19513-21

19513-21

Fairchild Service Kit, Model 20, 2:1 Ratio

19513-41

19513-41

Fairchild Service Kit, Model 20, 4:1 Ratio

19513-51

19513-51

Fairchild Service Kit, Model 20, 5:1 Ratio

213.53 Copper Alloy Bourdon Pressure Gauge

213.53 Copper Alloy Bourdon Pressure Gauge

WIKA Bourdon Pressure Gauge, 213.53 Series

233.53 Stainless Steel Bourdon Pressure Gauge

233.53 Stainless Steel Bourdon Pressure Gauge

WIKA Bourdon Pressure Gauge, 233.53 Series

T213.53 Copper Alloy Bourdon Pressure Gauge

T213.53 Copper Alloy Bourdon Pressure Gauge

Telematic Bourdon Pressure Gauge, T213.53 Series

T233.53 Stainless Steel Bourdon Pressure Gauge

T233.53 Stainless Steel Bourdon Pressure Gauge

Telematic Bourdon Pressure Gauge, T233.53 Series