GFH45-IOM Rev. 0 12/18
Printed in USA
Enidine / Conoflow
105 Commerce Way
Westminster, SC 29693
Tel: (864) 647-9521
Fax: (864) 647-7993
INSTRUCTION AND MAINTENANCE MANUAL
GFH45 PRESSURE REGULATOR
CAUTION: These instructions should be read
carefully prior to installation, use or
maintenance.
GENERAL PRODUCT OVERVIEW
Conoflow’s GFH45 Series Airpak®, Filter-Regulator is
used to provide clean, accurate air to instruments,
valves, positioners, transducers and other pneumatic
control devices. This unit’s design provides high flow
capability, durable materials of construction and bubble
tight shut-off.
The GFH45 Regulator has a maximum supply pressure
capability of 300 PSIG (2.07 MPa) with control output
settings of 0-25, 0-60 and 0-125 PSIG (0-172, 0-414 and
0-862 kPa). This brass filter regulator boasts a high flow
delivery rate and excellent droop characteristic.
This regulator is offered with ¼” NPT inlet and outlet
ports, two outlet gauge ports, and brass construction. A
handwheel or wrench knob adjustments are standard.
CAUTION:
Maximum Supply Pressure is 300
PSIG (2.07 MPa)
WARNING: This product is not recommended
for use with flammable liquids or gasses.
MATERIALS OF CONSTRUCTION
Nozzle Assembly: Brass with Buna N Soft Seat
Range Spring: Zinc Plated Carbon Steel
Diaphragm Assembly: see CED Code
Bowl: Brass
Body: Brass
Bonnet: Brass
SPECIFICATIONS
Maximum Supply Pressure:
300 psig (2.07 MPa)
Outlet pressure ranges are determined by the last
character in the regulator model number.
“
C
”
25 psig (172 kPa)
“
F
”
60 psig (414 kPa)
“
G
”
125 psig (862 kPa)
Proof Pressure:
150% of maximum operating
Burst Pressure:
400% of maximum operating
Flow Capacity:
20 scfm (see flow chart)
Temperature Range:
-20 °F to 165 °F
(-29 °C to 74 °C)
Sensitivity:
0.02 psi (0.14 kPa)
Connections:
¼” NPT Inlet and Outlet Ports,
Two-¼”
NPT
Gauge
Ports
(90° from Outlet Port)
Weight:
3.4 lb (1.55 kg)
REGULATOR CLEANING
The GFH45 pressure regulator is cleaned to ITT
Conoflow specification ES8A 01 1 when option B is
selected in position 6 of the model number.
WARNING
Conoflow’s products are designed and
manufactured using materials and
workmanship required to meet all applicable
standards. The use of these products
should be confined to services specified
and/or recommended in the Conoflow
catalogs, instructions, or by Conoflow
application engineers.
To avoid personal injury or equipment
damage resulting from misuse or
misapplication of a product, it is necessary
to select the proper materials of
construction and pressure-temperature
ratings which are consistent with
performance requirements.
