Fisher Controls has a wide range of low-pressure regulators to
meet almost any commercial or industrial application. For ease of
reference, only the most popular commercial and industrial regulators
are shown on this page. Other orifice sizes, body sizes and outlet
pressure ranges are available.
Note: Because of various spring ranges and orifice sizes, all
commercial and industrial regulators should be individually
sized for the particular installation. Consult specific product
bulletins for maximum pressures ratings. Contact your local
Fisher Distributor for assistance.
Type S302G – A medium capacity low pressure, direct-operated
regulator designed for loads up to 5.5 million BTU/hr, ideal for
installations at schools, bakeries, and many other commercial/
industrial applications. Available in body sizes of 1 1/4”, 1 1/2” and 2”
with spring ranges from 3.5” wc to 8 psig. The unit contains a limited
capacity internal relief valve; for high capacity relief, a Type 289 or
289P relief valve is required in the downstream system.
Type S202G – A high capacity low pressure, direct-operated regulator,
ideal for installations up to 22.9 million btu/hr. Available in body sizes
of 1 1/2” and 2” with spring ranges from 2” wc to 10 psig. Contains
a limited capacity internal relief valve; for high capacity relief, a Type
289 or 289P relief valve is required in the downstream system.
Type 299H – A high capacity pilot operated regulator. Incorporates
a lightweight design (21 lbs.) with dependable operation. With a
capacity up to 38 million btu/hr, the 299H is Ideal for applications from
large commercial sites to smaller multi-dwelling establishments. The
unit comes with a 1 1/2” or 2” cast iron body with internal or external
registration. Internal registration allows easy installation while external
registration provides higher accuracy. 2” flanged body, or steel body
material also available. Alternate outlet settings from 3.5”wc to 60
psig are available. The 299H has maximum inlet pressure rating
of 150 psig so it can not be used as a first-stage regulator.
Type 99 – Pilot-operated unit keeps outlet pressure constant despite
varying flow rates and inlet pressures. Designed to handle loads
up to 36 million BTU/HR, the type 99 is ideal for multiple customer
installations. The unique pilot design, with fast opening and closing
operation, makes the 99 ideal for large industrial boiler applications.
The 99 can be used for low or high pressure. A downstream control
line is required.
Type 133 – Self-operated Second-Stage regulator ideal for large
industrial applications with loads up to 113 million btu/hr. The unit
can be used for either low pressure or pounds service. Maximum
inlet pressure is 60 psig (4,14 bar), and a downstream control line