Parker Relieving Dial Regulators | 53R Series

53r-relieving-dial-regulator
 

FEATURES

  • 3/4", 1" and 1-1/4" ports
  • Balanced poppet design
  • Non-rising, pressure adjusting dial
  • Piston operated
  • High-relief flow

SYMBOLS

Regulator-Symbol-1

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Part Numbers



Part Number*  Description

Port Size

Flow
(scfm)

Height (A)

mm (in)

Width (H)

mm (in)

53R426R

Standard pressure - 5 to 160 psig (0.34 to 11 bar)

3/4" 400 132 (5.20)  56 (2.20)
53R425R

Low pressure - 2 to 40 psig (0.14 to 3 bar)

3/4" 400 132 (5.20) 56 (2.20)
53R526R

Standard pressure - 5 to 160 psig (0.34 to 11 bar)

1" 650 132 (5.20) 56 (2.20)
53R525R Low pressure - 2 to 40 psig (0.14 to 3 bar) 1" 650 132 (5.20) 56 (2.20)
53R626R Standard pressure - 5 to 160 psig (0.34 to 11 bar) 1-1/4" 700 132 (5.20) 56 (2.20)
53R625R Low pressure - 2 to 40 psig (0.14 to 3 bar) 1-1/4" 700 132 (5.20) 56 (2.20)

*For BSPP ports, add a "1" to the end of the part number.


53r-relieving-dial-regulator-dimensions

Service Kits and Accessories

Part Number Description
RRP-16-024-80 Adjustment dial knob
RRP-95-906-80 Spring, regulation, Bellville washer - 2 to 40 psig
RRP-95-905-80 Spring, regulation, Bellville washer - 5 to 160 psig
RRP-95-766-80 Piston and bonnet repair kit
RRP-96-935-80 Valve, pilot with o-ring and valve spring

Technical Specifications

 

Flow Capacity: 400 scfm (3/4"), 650 scfm (1"), 700 scfm (1-1/4")
Max Operating Temperature: 150°F
Max. Supply Pressure: 20.7 bar (300 psig)
Port Size: 3/4", 1", 1-1/4" (NPT, BSPP)
Weight: 4.0 lbs (1.8 kg)

Warning Triangle WARNING: These products can expose you to chemicals including lead and/or DEHP and/or carbon black, which are known to the State of California to cause cancer or birth defects or other reproductive harm.  For more information go to www.P65Warnings.ca.gov