Emerson 289HH Manual de instalación

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Installation Guide

D100280X014

English – March 2017

Introduction

This installation guide provides instructions for installation,

startup and adjustment. To receive a copy of the instruction

manual, contact your local Sales Office or view a copy at

www.fisher.com. For further information refer to: 289 Series

Instruction Manual, D100280X012.

PED Category

This product may be used as a pressure accessory with

pressure equipment in the following Pressure Equipment

Directive categories. It may also be used outside of the

Pressure Equipment Directive using sound engineering

practice (SEP) per table below. For information on the

current PED revision see Bulletin: D103053X012.

TYPE

289A

- - - -

289H

289HH

289L

20 and 25

289P

289U

- - - -

Specifications

Available Configurations

See Table 1

Body Sizes and Inlet Connections

Type 289L: 3/4 or 1 NPT

Types 289A and 289U: 1/4 NPT

Type 289H: 1 or 2 NPT

Type 289HH: 1 NPT

Maximum Allowable Relief (Inlet) Pressure

Maximum Relief Set Pressure

See Table 1

Proof Test Pressure

All Pressure Retaining Components have been proof

tested per Directive.

Pressure Setting Adjustment

Adjusting screw

Material Temperature Capabilities

Nitrile (NBR) and Neoprene (CR) Elastomers:

-29 to 66°C / -20 to 150°F

Fluorocarbon (FKM)

available with Types 289H and 289HH only

1. The pressure/temperature limits in this installation guide and any applicable standard

or code limitation should not be exceeded.

2. Bubble-tight shutoff cannot be attained at settings below 0.34 bar / 5 psig with

Fluorocarbon (FKM) O-ring seat.

SIZE

CATEGORY

NPS

1/4

SEP

3/4 and 1

SEP

1/4

SEP

and

(1)

: -7 to 149°C / 20 to 300°F;

(2)

Installation

Only qualified personnel should install

or service a backpressure regulator.

Backpressure regulators should be

installed, operated and maintained

in accordance with international and

applicable codes and regulations and

Emerson Process Management Regulator

Technologies, Inc. instructions.

If using a backpressure regulator on a

hazardous or flammable fluid service,

personal injury and property damage could

occur due to fire or explosion of vented

fluid that may have accumulated. To prevent

such injury or damage, provide piping or

tubing to vent the fluid to a safe,

well-ventilated area or containment vessel.

Also, when venting a hazardous fluid,

the piping or tubing should be located

far enough away from any buildings or

windows so to not create a further hazard,

and the vent opening should be protected

against anything that could clog it.

Personal injury, equipment damage, or

leakage due to escaping fluid or bursting of

pressure-containing parts may result if this

backpressure regulator is overpressured

or is installed where service conditions

could exceed the limits given in the

Specifications section, or where conditions

exceed any ratings of the adjacent piping

or piping connections.

To avoid such injury or damage, provide

pressure-relieving or pressure-limiting

devices (as required by the appropriate code,

regulation or standard) to prevent service

conditions from exceeding limits.

Additionally, physical damage to the

backpressure regulator could result in

personal injury and property damage due

to escaping fluid. To avoid such injury and

damage, install the backpressure regulator in

a safe location.

Clean out all pipelines before installation of the backpressure

regulator and check to be sure the backpressure regulator

has not been damaged or has collected foreign material

during shipping. For NPT bodies, apply pipe compound to

the external pipe threads. For flanged bodies, use suitable

line gaskets and approved piping and bolting practices.

Install the backpressure regulator in any position desired,

unless otherwise specified, but be sure flow through the

body is in the direction indicated by the arrow on the body.

289 Series

WARNING