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B34S Regulator
ITRON / ACTARIS / SCHLUMBERGER / SPRAGUE B34S GAS REGULATOR.
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Applications
Appropriate for many commercial and industrial uses such as gas engines, burners,
furnaces, and boilers. The rapid response of the B34S is particularly well-suited
for mid-range applications where quick on/off loads cause shock problems.
Description
The B34S is a spring-loaded self-operated regulator available with internal relief.
It combines the B31 8" diaphragm case with the B34 valve assembly for an economical
solution to mid-range commercial and industrial applications. Among its attributes
are an adjustable loading ring for controlled boost at high flows, precision breather
opening to ensure proper stability under all conditions, and in the R model, a high
capacity internal relief valve. All critical parts are either steel or aluminum, not
plastic, to ensure reliability.
Option Designations
S - (See description below)
SN - (See description below)
SR - (See description below)
Descriptions
B34S – The B34S is a spring-loaded, self
operated regulator available with or
without internal relief. It combines the
B31 8” diaphragm case with the B34
valve assembly for an economical
solution to mid-range commercial
and industrial applications. Among its
attributes are an adjustable loading
ring for controlled boost at high flows,
precision breather opening to ensure
proper stability under all conditions, and,
in the R model, a high capacity internal
relief valve. All critical parts are either
steel or aluminum to ensure reliability.
B34SN – The B34SN is a spring-loaded,
self-operated regulator with no internal
relief. This regulator can be used on midrange
applications where an internal relief
or other type of over-pressure protection
device is not required.
B34SR – The B34SR is the internal relief
version of the B34S series. This model
features an internal relief valve with a 1"
vent.
Operating Temperature Range:
-20°F to 150°F
-29°C to 65°C
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Maximum Capacities on inches w.c. outlet:
2” outlet connection - 10000 scfh
1-1/2” outlet connection - 7500 scfh
1-1/4” outlet connection - 2500 scfh
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Features
Interchangeable brass orifice
Molded diaphragm consisting of Buna-N and nylon
Upper diaphragm plate of plated steel
Stainless steel lever pin
Zinc with dichromate plated steel lever
One piece molded Buna-N valve seat
Alodined aluminum valve stem
Delrin® vent valve with Buna-N seat
Spring-loaded internal relief valve assembly
Vent Size: 1”
Stainless Steel vent screen
Die cast aluminum seal cap
Field interchangeable adjustment spring
Benefits
Economical
Space-saving design
Protects equipment for shock damage
Commercial performance in a compact size
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