Emerson HSRL Instruction Manual

Asia Pacific Only

Instruction Manual

May 2013

HSRL Series LP-Gas Regulators

HSRL Series

Figure 1. Type HSRL Series Regulators

WARNING

!

Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion

and/or  re causing property damage and

personal injury or death.

Fisher® equipment must be installed,
operated, and maintained in accordance
with federal, state, and local codes and
Fisher instructions. The installation in
most states must also comply with
NFPA No. 54 and 58 standards.

Only personnel trained in the proper
procedures, codes, standards, and
regulations of the LP-Gas industry
should install and service this equipment.

Things to tell the gas customer:

1. Show the customer the vent or vent assembly or
vent tube. Stress that this opening must remain
unobstructed at all times. Tell the customer to
check the vent opening after a freezing rain, sleet
storm, or snow to make sure ice has not formed in
the vent.

2. Show the customer the shutoff valve on the
container. The customer should close this valve
immediately if gas is smelled, appliance pilot lights
fail to stay on or appear higher than usual or any
other abnormal situation occurs.

3. Tell the customer to call your company to service
the regulator if the regulator vents gas or a leak

develops in the system. Only a quali ed gas

service person should install or service
the regulator.

D103744X012

www.fisherregulators.com

Asia Pacific Only

HSRL Series

Specications

Tables 1 to 3 list the specications for these regulators. Contact the factory if the regulator is to be used on any

service other than LP-Gas, natural gas, or air. The following information is located on the spring case:

Type number, orice size, spring range, and date of manufacture.

Body Size and End Connection Styles

3/4, 1, and 1-1/4 NPT

Allowable Inlet Pressure

(1)

Emergency: 150 psig / 10.3 bar
Maximum Operating Pressure: See Table 1

Allowable Outlet Pressure

(1)

Emergency (Casing): 25 psig / 1.7 bar
Maximum Operating Pressure to Avoid Internal
Parts Damage: 3 psi / 0.21 bar differential above

Outlet Pressure Range

9 to 13 inches w.c. / 22 to 32 mbar

Temperature Capabilities

-20 to 160°F / -29 to 71°C

Pressure Registration

Internal

Approximate Weight

5.5 pounds / 2.5 kg

outlet pressure setting

1. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.

Table 1. Maximum Operating Inlet Pressure

ORIFICE SIZE

Inch mm psig bar

3/8 9.5 105 30 2.1

1/2 13 185 20 1.4

WIDE-OPEN C

RELIEF SIZING

FOR

g

MAXIMUM OPERATING INLET PRESSURE TO OBTAIN

GOOD REGULATING PERFORMANCE

Table 2. Relief Performance

ORIFICE SIZE

Inch mm psig bar

3/8 9.5 15 1.0

1/2 13 9 0.6

MAXIMUM ALLOWABLE INLET PRESSURE IF OUTLET PRESSURE IS

HELD AT OR BELOW 2 psig / 140 mbar WITH DISC REMOVED

Table 3. Capacity, Connection Sizes, and Vent Orientation

END

CONNECTION

3/4-inch FNPT HSRL-BFC

1-inch FNPT HSRL-CFC

1-1/4-inch FNPT HSRL-EHC 4,110,000 14.5 psig / 1.0 bar 12 inches w.c. / 30 mbar

1. Capacities based on 2 inches w.c. / 5 mbar droop.

TYPE NUMBER

CAPACITY BTU/HR

PROPANE

2,100,000 10 psig / 0.69 bar 11 inches w.c./ 27 mbar

(1)

INLET PRESSURE

SETTING

OUTLET PRESSURE

SETTING

3/4-INCH NPT SCREENED VENT

STANDARD LOCATION

Over Inlet

2

Asia Pacific Only

VENT POINTED DOWN

VENT POINTED DOWN

Figure 2. Regulator with Vent Pointed Down

3 FEET /

0.91 meter

HSRL Series

Introduction

Scope of the Manual

This Instruction Manual covers Installation and
Maintenance for the HSRL Series regulators, which
are second stage regulators used on LP-Gas vapor
service applications. They are not to be used on
liquid service.

Description

The HSRL Series regulators are second stage low
pressure regulators, provide low pressure, inches of
water column, delivery pressures. They are normally
set at 11-inches w.c. / 27 mbar pressure. They have
high capacity internal relief valve construction.

Installation

WARNING

!

All vents should be kept open to

permit free fl ow of air in and out of

the regulator. Protect vent openings
against the entrance of rain, snow, ice
formation, paint, mud, insects, or any
other foreign material that could plug
the vent or vent line.

LP-Gas may discharge to the
atmosphere through the vent. An
obstructed vent which limits air or

gas fl ow can cause abnormally high

pressure that could result in personal
injury or property damage. Failure to
use a vent line on Indoor Installations
can cause a hazardous accumulation
of gas which could result in personal
injury or property damage.

General Installation Instructions

Before installing the regulator:

• Check for damage, which might have occurred

in shipment.

• Check for and remove any dirt or foreign material,

which may have accumulated in the regulator body.

• Replace old pigtails. Blow out any debris, dirt or
copper sulfate in the copper tubing and the pipeline.

• Apply pipe compound to the male threads of the
pipe before installing the regulator.

• Make sure gas  ow through the regulator is in the

same direction as the arrow on the body. “Inlet”
and “Outlet” connections are clearly marked.

3