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Model 4500A Pneumatic Volume Booster
Brand: Fairchild Industrial Products
Rotork Fairchild's Model 4500 Pneumatic Volume Boosters are popular due to their rugged design and high flow capacity in an economical package.
In its pilot operated regulator design, the M4500 handles up 250 psig (17.0 BAR, 1700 kPa) supply pressure and has five available signal to output ratios to meet most control element requirements.
The 4500 Booster provides a flow capacity of 150 SCFM (255 m3/HR), which equates to a Cv factor of approximately 3.0 in both forward and exhaust modes.
Features- Flow capacity of 150 SCFM (255 m3/HR).
- Five signal to output ratios.
- Control sensitivity of 1" water column.
- Soft Supply and Exhaust Valve seats.
- Separate Control Chamber.
- Optional remote feedback port.
- Optional Adjustable By-Pass Needle Valve (includes bubble tight exhaust valve)
- Canadian Registration Number (CRN) certification
Displaying prices & availability for Ohio, United States in CAD. Change location.
Models matching criteria: 372
- Ratio - 1:2
- Port Size - 3/8" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$55.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 1/2" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$505.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - Bypass Valve
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$742.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 3/8" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$947.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - Bypass Valve
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,232.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - Bypass Valve
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,703.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$427.00 CAD
$10.00 Shipping
FAIRCHILD Model 4500A Pneumatic Volume Booster, 1:1 Ratio, 3/4" BSPT (Tapered) show more
- Ratio: 1:1
- Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
- Ambient Temperature: -40°F to +200°F (-40°C to +93.3°C)
- Port Size: 3/4" BSPT (Tapered)
- Materials of Construction:
- Body & Housing: Aluminum
- Trim: Zinc Plated Steel, Brass
- Elastomers: Nitrile on Dacron
100+ In Stock
$724.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 3/4" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,424.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - Bypass Valve
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,759.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,818.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 3/8" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,916.00 CAD
$10.00 Shipping
FAIRCHILD Model 4500A Pneumatic Volume Booster
100+ In Stock
$2,017.00 CAD
$10.00 Shipping
- Ratio - 3:1
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,028.00 CAD
$10.00 Shipping
FAIRCHILD Model 4500A Pneumatic Volume Booster, 1:1 Ratio, 1/2" NPT, By-Pass Valve show more
- Ratio: 1:1
- Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
- Ambient Temperature: -40°F to +200°F (-40°C to +93.3°C)
- Port Size: 1/2" NPT
- Options:
- By-pass Valve
- Materials of Construction:
- Body & Housing: Aluminum
- Trim: Zinc Plated Steel, Brass
- Elastomers: Nitrile on Dacron
100+ In Stock
$2,266.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,039.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,659.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,131.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Straight
- Increased Adjustability - Bypass Valve
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,449.00 CAD
$10.00 Shipping
- Ratio - 3:1
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$163.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,000.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - Bypass Valve
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,228.00 CAD
$10.00 Shipping
- Ratio - 3:1
- Port Size - 3/4" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,024.00 CAD
$10.00 Shipping
- Ratio - 1:3
- Port Size - 3/8" NPT
- Port Thread - NPT
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,478.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$208.00 CAD
$10.00 Shipping
- Ratio - 1:3
- Port Size - 1/2" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$352.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/4" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$654.00 CAD
$10.00 Shipping
FAIRCHILD Model 4500A Pneumatic Volume Booster, 1:1 Ratio, 3/8" NPT, Tapped Exhaust show more
- Ratio: 1:1
- Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
- Ambient Temperature: -40°F to +200°F (-40°C to +93.3°C)
- Port Size: 3/8" NPT
- Options:
- Tapped Exhaust
- Materials of Construction:
- Body & Housing: Aluminum
- Trim: Zinc Plated Steel, Brass
- Elastomers: Nitrile on Dacron
100+ In Stock
$1,305.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,998.00 CAD
$10.00 Shipping
- Ratio - 3:1
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$54.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,343.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/4" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - Bypass Valve
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,493.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/4" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$903.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Straight
- Increased Adjustability - Bypass Valve
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$950.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - Bypass Valve
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,248.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Straight
- Increased Adjustability - Bypass Valve
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,481.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,810.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Tapped Exhaust
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,561.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 3/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - Feedback
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$2,007.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Exhaust Port - Straight
- Increased Adjustability - None
- Feedback Option - None
- Trim - Zinc-Plated Steel, Brass
100+ In Stock
$1,441.00 CAD
$10.00 Shipping
Specifications
Actuator Type
- Bypass Valve
Ambient Temperature Range
- -40° to 93° C (-40° to 200° F)
BSP Connection
- 1/2” BSPP Female
- 1/2” BSPT Female
- 3/4” BSPP Female
- 3/4” BSPT Female
- 3/8” BSPP Female
- 3/8” BSPT Female
Elastomers
- Fluorocarbon (Viton)
- Nitrile on Dacron
Enclosure, Body Material
- Aluminum
Environmental Protection
- Acceptable for use in Zones 1 & 2 for Gas Atmosphere, Groups IIA & IIB & Zones 21 & 22 for Dust Atmospheres
Exhaust Capacity - Relieving Units Only
- 40 scfm
- 40 SCGM (65.2 m³/hour) where Downstream Pressure is psig: 5 (bar: 0.35, kPa: 35) Above psig: 20 (bar: 1.5, kPa: 150) Set Point.
- 65.2 m³/hour
Flow Capacity
- 150 scfm (255 m³/hour)
- 150 scfm (255 m³/hour) at psig: 100 (bar: 7, kPa: 700) Supply & psig: 20 (bar: 1.5, kPa: 150) Set Point
- 255 m³/hour
NPT Connection
- 1/2” NPT Female
- 3/4” NPT Female
- 3/8” NPT Female
Output Pressure - Maximum
- bar: 10
- kPa: 1,000
- psig: 150
Ratio
- 1:1
- 1:2
- 1:3
- 2:1
- 3:1
Relief
- Relieving
Set Point - Decreasing
- Inches WC: 1.0 to 3.0
Set Point - Increasing
- Inches WC: 1.0 to 3.0
Supply Pressure - Maximum
- bar: 17
- kPa: 1,700
- psig: 250
Supply Pressure Effect
- bar: 0.007 to 0.021
- kPa: 0.7 to 2.1
- psig: 0.1 to 0.3
Trim Material
- 316 Stainless Steel
- Brass
- Zinc-Plated Steel
Vent
- Straight
- Tapped Exhaust
