
Type HSR
Installation Sheet
D103075X012
June 2019
Introduction
This manual provides instructions for the installation, 
startup and adjustment of the Type HSR pressure regulator. 
If maintenance is required, refer to the Type HSR 
Instruction Manual, form 5753. To receive a copy of the 
instruction manual, contact your local Sales Office.
Specifications
Maximum Emergency Inlet Pressures(1)
150 psi / 10.3 bar
Maximum Emergency Outlet (Casing) Pressures(1)
25 psig / 1.72 bar
Outlet Pressure Ranges
4 to 6 in. w.c / 10 to 15 mbar
6 to 8 in. w.c / 15 to 20 mbar
8 to 10 in. w.c / 20 to 25 mbar
10 to 12.5 in. w.c / 25 to 31 mbar
12.5 to 20 in. w.c / 31 to 50 mbar
20 to 35 in. w.c / 50 to 87 mbar
1.25 to 2.2 psig / 0.09 to 0.15 bar
Temperature Capabilities(1)
-20 to 160°F / -29 to 71°C
Installation
!
WARNING
Personal injury, equipment damage or 
leakage due to escaping gas or bursting of 
pressure-containing parts might result if these 
regulators are overpressured or installed 
where service conditions could exceed the 
limits for which the regulators were designed, 
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 those limits.
Additionally, physical damage to a regulator 
could cause personal injury and property 
damage due to escaping gas. To avoid such 
injury and damage, install the regulator in a 
safe location.
A regulator may vent some gas to the 
atmosphere in hazardous or flammable gas 
service, vented gas might accumulate and 
cause personal injury, death or property 
damage due to fire or explosion. Vent a 
regulator in hazardous gas service to a 
remote, safe location away from air intakes or 
any hazardous location. The vent line must be 
protected against condensation or clogging.
Before installing the regulator, check for damage which might 
have occurred in shipment. Also check for dirt or foreign 
matter which may have accumulated in the regulator body 
or in the pipeline. Apply pipe compound to the male threads 
of the pipeline and install the regulator so that the flow is in 
the direction of the arrow cast on the side of the body. The 
diaphragm actuator assembly can be rotated to any position 
relative to the body, in 90° increments. Remove the two 
cap screws that hold the body to the actuator in order to 
rotate the diaphragm actuator assembly.
Do not install the regulator in a location where there can be 
excessive water accumulation, such as directly beneath a 
downspout or in an undrained pit.
To obtain the maximum flow capacities or other performance 
characteristics, the length of pipe from the regulator outlet 
to the meter should have no bends and should be the same 
size as the regulator outlet. Replace the regulator if water 
gets into the spring case or the lower casing of the regulator.
CAUTION
You are advised to use new vent piping 
because defective threads on the relief 
vent piping may interfere with the venting 
assembly if the piping obstructs the 
movement of the vent flapper.
On indoor installations, the vent should be piped outside 
the building. Remove the screen from the regulator vent 
connection and connect vent piping from that connection 
to the outdoors. Install a weather and insect resistant 
vent assembly on the outside end of the pipe. Inspect the 
vent opening regularly. On some installations, it may be 
necessary to install the regulator beneath a protective hood. 
The vent should be pointing or sloping down sufficiently 
to allow any condensate to drain. Also check the regulator 
periodically for external or internal corrosion.
Overpressure Protection
!
WARNING
Some type of overpressure protection is 
needed if actual inlet pressure can exceed 
the outlet pressure rating. Overpressuring 
any portion of this equipment may cause 
1. The pressure/temperature limits in this installation sheet and any applicable standard or 
code limitation should not be exceeded.