Airtek Ltd. — 514-336-3820 — sales@airtekltd.com — www.airtekltd.com

Fittings & Valves
Watts FRL

Maximum inlet operating pressure and temperature ratings are 300 PSIG and 150°F. The Dial Regulators are available in five pipe sizes.

Dial regulators feature a transparent, pressure-calibrated, non-rising adjustment dial for quick adjustment of secondary pressure. If a gauge is required for monitoring reasons, two 1/4 NPT gauge ports are provided; however, these are usually used for additional outlet ports. The full reduced pressure range can be dialed in less than 270° of dial rotation. This feature is particularly advantageous if secondary pressure must be changed frequently. The transparent dial can be colour or graphics coded for easy reference to required pressure changes. Dial regulators can be mounted in any position so dial face is always visible. All Dial units have a slight constant air bleed.

Materials of Construction

Body: Zinc
Bonnet: Zinc / Brass
Piston: Acetal
Seals: Nitrile
Springs: Steel
Valve Assembly: Brass / Nitrile / Acetal

warningWARNING

Do not connect regulators to bottled gas.
Do not exceed maximum primary pressure rating
Product rupture can cause serious injury

W51R Regulator

watts dial regulator

Features:

Pressure reference indicating dial face.
Non-rising, pressure-adjustment knob.
Self-relieving
Full pressure adjustment in less than one full turn.
Recommended for pilot-air applications

Specifications:

Adjusting Range Pressure: 2 ~ 40 PISG or 5 ~ 160 PSIG
Bleed Rate: 0.05 SCFM
Maximum Supply Temperature: 150° F
Maximum Supply Pressure: 300 PSIG
Port Threads: 1/4"
Weight: 1.3 Lbs

Port Size Standard Pressure
5 ~ 160 PSIG
Low Pressure
2 ~ 40 PSIG
Flow
Capacity
SCFM
1/4" W51R126RA W51R125RA .07

dial regulaor dimension

W51R Dimensions
A B C D E
2.6" 2.6" 2.4" 0.4" 2.8"
W52R Regulator

watts dial regulator

Features:

Balanced poppet design.
Non-rising, pressure-adjustment knob.
High-relief flow (3/16" relief orifice.)
Two 1/4" gauge ports.
Piston operated.

Specifications:

Adjusting Range Pressure: 2 ~ 40 PISG or 5 ~ 160 PSIG
Bleed Rate: 0.05 SCFM
Gauge Ports (can be used as additional High Flow 1/4" outlet ports); Two ports 1/4"
Maximum Supply Temperature: 150° F
Maximum Supply Pressure: 300 PSIG
Port Threads: 1/4", 3/8", 1/2" or 3/4"
Weight: 2.3 Lbs

Port Size Standard Pressure
5 ~ 160 PSIG
Low Pressure
2 ~ 40 PSIG
Flow
Capacity
SCFM
1/4" W52R126RA W52R125RA 117
3/8" W52R226RA W52R225RA 180
1/2" W52R326RA W52R325RA 195
3/4" W52R426RA W52R425RA 220

dial regulaor dimension

W52R Dimensions
A B C D E
3.2" 2.6" 3.15" 0.95" 4.1"
W53R Regulator

watts dial regulator

Features:

Balanced poppet design.
Non-rising, pressure-adjustment knob.
High-relief flow (3/16" relief orifice.)
Two 1/4" gauge ports.
Piston operated.

Specifications:

Adjusting Range Pressure: 2 ~ 40 PISG or 5 ~ 160 PSIG
Bleed Rate: 0.05 SCFM
Gauge Ports (can be used as additional High Flow 1/4" outlet ports): Two ports 1/4"
Maximum Supply Temperature: 150° F
Maximum Supply Pressure: 300 PSIG
Port Threads: 3/4", 1" or 1-1/4"
Weight: 4.0 Lbs

Port Size Standard Pressure
5 ~ 160 PSIG
Low Pressure
2 ~ 40 PSIG
Flow
Capacity
SCFM
3/4" W53R426RA W53R425RA 400
1" W53R526RA W53R525RA 650
1-1/4" W53R626RA W53R625RA 700

dial regulaor dimension

W53R Dimensions
A B C D E
4.3" 2.6" 3.50" 1.70" 5.2"
W54R Regulator

watts dial regulator

Features:

Balanced poppet design.
Non-rising, pressure-adjustment knob.
High-relief flow (3/16" relief orifice.)
Two 1/4" gauge ports.
Piston operated.

Specifications:

Adjusting Range Pressure: 2 ~ 40 PISG or 5 ~ 160 PSIG
Bleed Rate: 0.05 SCFM
Gauge Ports (can be used as additional High Flow 1/4" outlet ports): Two ports 1/4"
Maximum Supply Temperature: 150° F
Maximum Supply Pressure: 300 PSIG
Port Threads: 1-1/2" or 2"
Weight: 9.0 Lbs

Port Size Standard Pressure
5 ~ 160 PSIG
Low Pressure
2 ~ 40 PSIG
Flow
Capacity
SCFM
1-1/2" W54R726RA W54R725RA 1600
2" W54R826RA W54R825RA 1600

dial regulaor dimension

W54R Dimensions
A B C D E
5.3" 3.6" 4.00" 2.80" 6.80"
 

Due to the fact that we are continuously improving our products, the descriptions, illustrations,
specifications,dimensions, and part numbers are subject to change without notice.
Every effort has been made to have the information on this site error free, we can not be responsible for errors and or omissions.

Airtek Ltd., 5750 Donahue St., Montreal, Qc, Canada, H4S 1C1
Tel: 514-336-3820