63EG & 1098-63EGR

Type 63EG Relief Valves

Types 63EG and 1098-63EGR pilot-operated pressure relief valves may be used for both liquid and gas service. The Type 63EG is also suitable for throttling backpressure or bypass applications. The main valves in both constructions use quick-change trim package for fast maintenance.

Features

  • Full Usable Capacity
  • Fast Pilot Reseat
  • Low Buildup Capability
  • Stable Start-up
  • Noise Reduction Capability
  • Overpressure Protection
  • Thorough Laboratory Testing
  • Easy In-Line Maintenance
  • In-Service Travel Inspection
  • Differential Control
  • Quick Change Trim Package
  • No Assembly Adjustments
  • Versatility in both Liquid and Gas Service


Maximum Relief (Inlet) Pressure
Type 63EG: 400 psig (27,6 bar)
Type 1098-63EGR: 82 psig (5,65 bar)

Relief Set Pressure Range
Type 63EG: 10 to 400 psig (0,69 to 27,6 bar) in nine ranges
Type 1098-63EGR: 3 to 65 psig (0,21 to 4,48 bar) in three ranges

Temperature Capabilities
Nitrile (NBR):
-20º to 180ºF (-29º to 82ºC)
Fluorocarbon (FKM):
0º to 300ºF (-18º to 149ºC)
Water is limited to 0ºF to 180ºF (-18º to 82ºC)
Ethylenepropylene (EPDM):
-20º to 275ºF (-29º to 135ºC)

Approximate Weights (including pilot)
Type 63EG
1-Inch (DN 25): 35 pounds (15,9 kg)
2-Inch (DN 50): 55 pounds (24,9 kg)
3-Inch (DN 80): 95 pounds (43,1 kg)
4-Inch (DN 100): 145 pounds (65,8 kg)
6-Inch (DN 150): 330 pounds (150 kg)
8 x 6-Inch (DN 200 x 150): 670 pounds (304 kg)
Type 1098-63EGR
1-Inch (DN 25): 65 pounds (29,5 kg)
2-Inch (DN 50): 85 pounds (38,6 kg)
3-Inch (DN 80): 125 pounds (56,7 kg)
4-Inch (DN 100): 175 pounds (79,4 kg)
6-Inch (DN 150): 360 pounds (163 kg)
8 x 6-Inch (DN 200 x 150): 700 pounds (318 kg)

 63EG & 1098-63EGR  Bulletin
 63EG Schematic
 1098-63EGR Schematic
 1098-63EGR-119 Schematic
 Instruction Manual