Direct Operated Fisher Gas Regulator 630 Model

Fisher Gas Regulator 630 Model

Introduction

Fisher Gas Regulator Type 630 Big Joe regulators are direct- operated, spring-loaded, pressure reducing regulators. They are available in 1 and 2-inch / DN 25 and 50 body sizes, and they are designed for maximum inlet pressures to 1500 psig / 103 bar and outlet pressures from 3 to 500 psig / 0.21 to 34.5 bar. The Type 630 can be used with natural gas, air, or a variety of other gases for such applications as first-stage farm-tap regulators or high-pressure industrial regulators. The Type 630 can be converted in the field to a relief valve or is available as the Type 630R relief valve/backpressure regulator; refer to the separate Type 630R Bulletin (71.4:630R) for information.

Features

• High Pressure Capabilities—Inlet pressures up to 1500 psig / 103 bar and control pressures up to 500 psig / 34.5 bar.

• Rugged Construction—Compact, sturdy design and solid metal construction provide a strong, reliable, long-lasting regulator.

• Better Low-Pressure Control—Fisher 630 is available in both high-pressure and low-pressure constructions; the low-pressure units have a larger diaphragm area to provide more accurate control of low-pressure settings.

• Sour Gas Service Capability—Optional materials are available for applications handling sour gases. These constructions comply with the recommendations of the NACE International MR0175.

Specifications

Body Sizes

1 and 2-inch / DN 25 and 50

End Connection Style

NPT, ASME CL150 RF, CL300 RF, or CL600 RF

Maximum Inlet Pressure and Pressure Drops

Up to 1500 psig / 103 bar, See Table 1

Maximum Outlet Pressure

Up to 500 psig / 34.5 bar, See Table 2

Outlet Pressure Ranges

3 to 500 psig / 0.21 to 34.5 bar, See Table 2

Pressure Registration

Internal

Construction Materials

Body: Cast iron, or steel

Spring Case and Diaphragm Adaptor:

Cast iron or steel

Orifice: Brass or stainless steel

Valve Disk: Nitrile (NBR), Nylon (PA), Polytetrafluoroethylene (PTFE),or Fluorocarbon (FKM)

Valve Disk Holder: Brass or stainless steel Valve Carrier: Brass or stainless steel

Diaphragm: Neoprene (CR) or Fluorocarbon (FKM)

Inlet Body Gaskets: Copper with brass trim or stainless steel with stainless steel trim

All Other Gaskets: Composition

Lever: Zinc-plated steel or Stainless steel

Diaphragm Connector: Aluminum with brass trim or stainless steel with stainless steel trim.

Pitot Tube: Stainless steel

Regulator Spring: Plated steel

Adjusting Screw: Steel

Diaphragm Plate: Zinc-plated steel

Upper Spring Seat: Zinc

Lower Spring Seat: Zinc-plated steel (low pressure) or Zinc (high pressure)

Vent: Type Y602-9

Spring Case Vent

1/4 NPT

Options

PTFE diaphragm protector, wire-seal adjusting screw, and NACE

Installation

These regulators may be installed in any position. Some installations may require a remote vent line. Protect all vent openings against the entrance of rain, snow, debris, or any other foreign material that may plug the opening.

Direction of flow through the regulator body must be in the direction indicated by the flow direction arrow found on the regulator body.

Overpressure Protection

As is the case with most regulators, these regulators have an outlet pressure rating that is lower than the inlet pressure rating. Overpressure protection is needed if the actual inlet pressure can exceed the outlet pressure rating.

Regulator operation below the limits specified in Tables1 and 2 do not preclude the possibility of damage from external sources or from debris in the pipeline. The regulator should be inspected for damage after any overpressure condition.

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