Bellofram Air Regulators Type 51 Stainless Steel Catalog Page
Type 51 Stainless Steel
Pressure Regulator Series
Features
•Ideal for sour gas and corrosive applications
or environments
•Excellent stability and repeatability
•Low droop
•Tapped vent for exhaust gas capture
•Built-in filter assemblies and dripwells
•Manual or automatic drain options
•Filter only assemblies available
•Panel, bracket or pipe mounting
Description
The Type 51SS regulator product line is
designed for service with a wide variety of
corrosive gases and environments. Special
construction features include 316 stainless
steel for the housing and filter assemblies,
with fluorocarbon elastomers used for the control diaphragm and the supply valve.
These corrosion resistant materials are compatible with sour gas and for use in off-shore environments. Typical applications include petrochemical processing, chemical plants, food processing
and paper/pulp mills.
This ruggedly built regulator operates in pressure ranges up to 150 PSIG (10.3 BAR). The Type
51SSFR and Type 51SSAR Regulators and the Type 51SSF and Type 51SSAF filter assemblies
have built-in dripwells which trap water, oil and other contaminants. The contaminants are easily
flushed out of the dripwell via a convenient
manual or automatic drain valve. The 40-48 Micron Filter is constructed of sintered 316 stainless
steel, and is easily removed.
The Type 51SS products can be through-panel
mounted with the mounting nut supplied (regulators only), bracket-mounted using the optional
bracket (regulators only), or pipe mounted by its
ports (regulators and filters).
The regulators and filter assemblies comply with
NACE material requirement #MR-01-75 for sulfide
stress cracking resistant metallic material for oil
field equipment.
Air Regulators
Type 51 SS
Pressure Regulator Series
Once set to a desired pressure, the
Marsh Bellofram Type 51 Stainless
Steel Regulators maintain their
settings permanently.
The integral convoluted diaphragm
provides constant adjustment to
downstream pressure drop,
downstream pressure increase
and changes in forward flow.
www.marshbellofram.com • 800.727.5646
Type 51SS: Regulated Pressure VS. Flow
PSIG BAR
30 2.1
25 1.7
20 1. 4
15 1. 0
10 0.7
Regulated PRessuRe
5 0.3
0 0
SCFM 0 5 10 15 20 25 30
LPM 0 142 283 425 566 708 850
0-30 PSIG (0-2.1 BAR) Range, 100 PSIG (6.9 BAR) Supply
oRwaRd Flow
F
19
Air Regulators
Filter
Maximum Supply Pressure
Output Pressure Range
Supply Pressure Sensitivity
@ 25 psig / 1.7 BAR change
in supply
Sensitivity
Repeatability
Flow @ 100 psig (6.9 BAR)
Supply 20 psig (1.4 BAR)
outlet
Exhaust Capacity
@ 5 psig (0.34 BAR) above
setpoint
Temperature Range
Air Consumption
Port Size
Materials of Construction
Type 51SSR Type 51SSFR Type 51SSAR Auto Filter Type 51SSF Type 51SSAF
n/a
250 PSIG (17.3 BAR) 250 PSIG (17.3 BAR) 250 psig (17.3 BAR) 250 PSIG (17.3 BAR) 250 PSIG (17.3 BAR)
0-30 PSIG (0-2.1 BAR)
0-60 PSIG (0-4.1 BAR)
0-100 PSIG (0-6.9 BAR)
2-150 PSIG (0.1-10.3 BAR)
0.20 PSIG (0.01 BAR )
output change
1" (2.5 cm) of water 1" (2.5 cm) of water 01" (2.5 cm) of water N/A N/A
0.1 PSIG (0.01 BAR) 0.1 PSIG (0.01 BAR) 0.1 PSIG (0.01 BAR) N/A N/A
20 SCFM
(566 LPM)
0.1 SCFM
(2.8 LPM)
-0 to 180˚F (-18 to 82˚C) -0 to 180˚F (-18 to 82˚C) 0 to 180˚F (-18 to 82˚C) 0 to 180˚F (-18 to 82˚C) 0 to 180˚F (-18 to 82˚C)
6 SCFH (2.84 LPM) Maximum 6 SCFH (2.84 LPM) Maximum 6 SCFH (2.84 LPM) Maximum N/A N/A
1/4 NPT or 3/8 NPT 1/4 NPT or 3/8 NPT 1/4 NPT or 3/8 NPT 1/4 NPT or 3/8 NPT 1/4 NPT or 3/8 NPT
316 Stainless Steel
housing and screen
fluorocarbon elastomers
Built in 40 micron filter
with manual drain
0-30 PSIG (0-2.1 BAR)
0-60 PSIG (0-4.1 BAR)
0-100 PSIG (0-6.9 BAR)
2-150 PSIG (0.1-10.3 BAR)
0.45 PSIG (0.03 BAR)
output change
20 SCFM
(566 LPM)
0.1 SCFM
(2.8 LPM)
316 Stainless Steel
housing and filter assemblies
fluorocarbon elastomers
Built in 40 micron filter
with auto-drain
0-30 PSIG (0-2.1 BAR)
0-60 PSIG (0-4.1 BAR)
0-100 PSIG (0-6.9 BAR)
2-150 PSIG (0.1-10.3 BAR)
0.45 PSIG (0.03 BAR)
output change
20 SCFM
(566 LPM)
0.1 SCFM
(2.8 LPM)
316 Stainless Steel
housing and filter assemblies
fluorocarbon elastomers
40 micron filter
N/A N/A
N/A N/A
N/A N/A
N/A N/A
316 Stainless Steel
housing and filter
assemblies fluorocarbon
elastomers
40 micron filter
316 Stainless Steel
housing and filter
assemblies fluorocarbon
elastomers
Dimensional Drawings
Mounting Bracket
607-000-128
20
Type 51SSF Type 51SSAF
Type 51SSAR
Type 51SSFR
Type 51SSR
800.727.5646 • www.marshbellofram.com
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