Custom Fisher Gas Regulator 99 Pressure Reducing Regulator With Pilot

Emerson Fisher Gas Regulator 99 Model Pressure Reducing Regulator

Introduction

The Type 99 gas regulators provide a broad capacity for controlled pressure ranges and capacities in a wide variety of distribution, industrial, and commercial applications.

A Type 99 regulator has Types 61L, 61LE, and 61LD (low pressure); Type 61H (high pressure); or Type 61HP (extra high pressure) pilot integrally mounted to the actuator casing as shown in Figure 1.The Type 99 regulator can handle up to 1000 psig/ 69.0 bar inlet pressure (the 1000 psig / 69.0 bar regulator requires a Type 1301F pilot supply regulator and a Type H110 pop relief valve).

Features and Benefits

• Wide Variety of Applications—Natural gas distribution systems, gas supply to industrial boilers, furnaces, ovens, mixers, plant air service, oxygen and ammonia service, and large commercial establishments such as shopping centers and schools.

• High Accuracy—Keeps constant inlet pressures to downstream equipment by accurately controlling distribution system pressures at widely varying flow rates and supply pressures for maximum efficiency and best operation, or by eliminating the need for pressure-compensating meters by holding a steady pressure to the meter inlet.

• No Atmospheric Bleed—Loading pressure bleeds downstream through pilot via downstream control line. No bleed occurs when regulator is shut off.

• Can Handle High Inlet Pressures—Up to 1000 psig / 69.0 bar inlet pressures

(the 1000 psig / 69.0 bar regulator requires a Type 1301F pilot supply regulator and a Type H110 pop relief valve).

• Easily Modified for Special Service ,Types 61L and 61H pilot relay parts can be replaced with special orifices and springs for fast opening, fast closing, or monitoring applications.

• Tight Shutoff—Heavy main spring working through a lever provides a high seat loading force for tight shutoff.

Available Construction

Type 99L: Type 99 with Type 61L pilot which has 2-inches w.c. to 20 psig / 5 mbar to 1.4 bar pressure range.

Type 99LD: Type 99 with Type 61LD pilot which has a narrower proportional band than the standard Type 61L pilot.

Type 99LE: Type 99 with Type 61LE pilot which has a broader proportional band than the standard Type 61L pilot.

Type 99H: Type 99 with Type 61H pilot which has 10 to 65 psig / 0.69 to 4.5 pressure range.

Type 99HP: Type 99 with Type 61HP pilot which

has 35 to 100 psig / 2.4 to 6.9 pressure range.

Body Size and End Connection Styles

NPS 2 / DN 50 body with NPT, CL125 FF, CL150 RF,

CL250 RF, CL300 RF end connections

Maximum Allowable Inlet Pressure(1)

160 psig / 11.0 bar: Type 61LD pilot

400 psig / 27.6 bar: Types 61L, 61LE, and 61H pilots

1000 psig / 69.0 bar: Type 61HP pilot, along with

Type 1301F pilot supply regulator and Type H110

relief valve (1/2-inch / 13 mm orifice only) See Table 3

Maximum Pilot Spring Case Pressure for

Pressure Loading(1)(2)

Types 61L, 61LD and 61LE: 50 psi / 3.4 bar

with special steel closing cap

Types 61H and 61HP: 100 psi / 6.9 bar

Outlet Pressure Ranges

Construction Materials

Actuator Casing: Cast iron

Pilot Body and Spring Case: Cast iron

Actuator Diaphragm: Nitrile (NBR) or

Fluorocarbon (FKM)

Upper and Lower Pilot Diaphragm

Types 61L and 61H: Nitrile (NBR) or Fluorocarbon (FKM)

Type 61HP: Neoprene (CR) or Fluorocarbon (FKM)

Main Valve Body

400 psig / 27.6 bar: Cast iron or WCC Steel

1000 psig / 69.0 bar: WCC Steel

Metal Trim Parts for Main Valve Body

400 psig / 27.6 bar: Brass or Stainless steel

1000 psig / 69.0 bar: Stainless steel

Elastomer Seats for Main Valve Body

Neoprene (CR), Nitrile (NBR), Fluorocarbon (FKM)

Nylon (PA), or Polytetrafluoroethylene (PTFE)

Metal Trim Parts for Pilot: Steel, Stainless steel,

Cast iron, Aluminum, Brass, or Zinc

Elastomer Seats for Pilot: Nitrile (NBR)

or Fluorocarbon (FKM)

Pilot Gaskets

Type 61L: Neoprene (CR)

Types 61H and 61HP: Composition

O-Rings: Nitrile (NBR) or Fluorocarbon (FKM)

P590 Series Filter

Type P594-1: Brass

Type P593-1: Aluminum

Replaceable Filter: Cellulose

Tubing and Fittings

Copper or Stainless steel tubing and Brass, Steel,

or Stainless steel fittings

Type 1301F Pilot Supply Regulator

Body and Spring Case: Brass

Valve Disk: Nylon (PA) / PTFE

Gasket: Neoprene (CR)

Metal Trim Parts: Brass or Stainless steel

Type H110 Pop Relief Valve

Body: Brass

Disk: Nitrile (NBR)

Spring: Stainless steel

Table 1. Outlet Pressure Ranges

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