< Marsh Bellofram Group of Companies < Bellofram Precision Controls < Air Regulators < T-51
Type 51 Regulators
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Type 51 (236 KB)

Type 51 Regulators
  • Excellent regulation, stability and repeatability
  • Corrosion-resistant construction
    (no brass components, Type 51FR & Type 51AFR)
  • NACE Constructed (Type 51FRCT Corrosive Tec)
  • Wide Temperature Range model designed to work between -40º and +185º F (T51FRWT)
  • Fluorocarbon pintle seat (Type 51FR, Type 51AFR & Type 51FRCT)
  • Auto drain option (Type 51AFR)
  • Low Droop
  • Small package size
  • Panel, bracket or pipe mounting
  • Meets ATEX EXii 2 G Dc T 6 (Non-electrical certification)
Product Detail:
The Bellofram Type 51 Precision Air Regulator series offers a high-performance regulator in a compact, low cost package. It operates in output pressure ranges up to 100 psig / 6.9 BAR (120 psig / 8.3 BAR in T-51FR Corrosive Tec & T51FRWT), with a maximum supply pressure of 250 psi (17.3 BAR).

Materials of construction for standard Type 51 Series Regulators: Diecast aluminum for the body and dripwell; glass-reinforced thermoplastic polyester for the bonnet; acetal resin for the internals; BUNA-N for the diaphragm, gaskets and O-ring, fluorocarbon for the pintle seat, and aluminum for the drain valve (plated steel handle).

Materials of construction for Corrosive Tec Type 51FRCT: Aluminum alloy bonnet, body, and filter bowl, 316 stainless steel internals, Inconel alloy range spring, nitrile diaphragm (fluorocarbon optional), 316 stainless steel valve assembly, and finished with an epoxy paint. All metallic parts for this unit conform to NACE material requirements #MR-01-75.

These regulators are available standard (Type 51R) or as filter-regulators (Type 51FR, Type 51FRCT & Type 51FRWT) and are even available with an automatic drain, for automated flushing out of contaminants (Type 51 AFR). These versatile regulators provide excellent regulation for a wide range of applications, including pneumatic instruments, controllers, chucks, and actuators. They can be through-panel mounted with the supplied mounting nut, bracket-mounted with the optional bracket or, due to their light weight, mounted by their ports. The Corrosive Tec is supplied with a tapped bonnet vent, to allow for the capture of exhaust air.
Part Numbers:
 
Part Number
Set Point Range
BAR
psig
T51R
960-222-000
0-2.1
0-30
960-223-000
0-4.1
0-60
960-224-000
0-6.9
0-100
T51FR
960-175-000
0-2.1
0-30
960-176-000
0-4.1
0-60
960-177-000
0-6.9
0-100
T51AFR
960-284-000
0-2.1
0-30
960-285-000
0-4.1
0-60
960-286-000
0-6.9
0-100
T51 FRCT
960-303-000
0-2.1
0-30
960-304-000
0-4.1
0-60
960-305-000
0-8.3
0-120
T51 FRWT
960-048-000
0-2.1
0-30
960-049-000
0-4.1
0-60
960-050-000
0-8.3
0-120
Options:
•=option is available
s=option is standard
T51R
T51FR
T51AFR
T51FRCT
1
Fluorocarbon Pintle
•
s
s
s
2
Non-Relieving
•
•
•
•
3
Knob
Sq. Head Adj. Screw
•
s
•
s
•
s

s
4
 5 Micron Filter
•
•
•
5
Epoxy Coating
•
•
•
s
6

Tapped Vent
Coalescing Filter


•
s
7
Mounting Bracket
•
•
•
•
8
Pressure Gauge
•
•
•
•
9
Tamper Resistant Cover
Panel Nut Mount

s

s

s
•
10
Soft Relief Seat
Low Bleed

•
11
Fluorocarbon Diaphragm
•
•
•
•

Replace the last three digits of the part number with digits from the table below. If more than 2 combination needed, Consult Factory.
OPTION
1
2
3
4
5
6
7
8
9
10
11
1
Fluorocarbon Pintle
001
021
031
041
051
061
071
081
091
101
111
2
Non-Relieving
002
032
042
052
062
072
082
092
112
3
Knob
003
043
053
063
073
083
103
113
4
 5 Micron Filter
004
054
074
084
094
104
114
5
Epoxy Coating
005
065
075
085
095
105
115
6
Coalescing Filter
(T51AFR only)
006
076
086
096
106
116
7
Mounting Bracket
007
087
097
107
117
8
Pressure Gauge
008
098
108
118
9
Tamper Resistant Cover
009
109
119
10
Soft Relief Seat Low Bleed
010
110
11
Fluorocarbon Diaphragm
011

Non-Relieving: Used in applications where it is desirable to relieve pressure downstream and not at the regulator. Non-relieving regulators should not be used for low or no flow applications.
Knob: Replaces the standard square head adjusting screw. (except Type 51FRCT)
5 Micron Filter: Replaces the 40 micron filter for more complete air filtration. (Except Type 51R)
Epoxy Finish: An epoxy paint applied to the body and dripwell of the regulator exterior surfaces to provide increased corrosion resistance. (Standard for Type 51FRCT)
Mounting Bracket: Plated steel bracket for side mounting. (316 SS for Type 51FRCT)
Coalescing Filter: Replaces the 40 micron filter for both moisture and particulate filtration. (Type 51AFR only)
Pressure Gauge: Dual scale (psi/kPa) 2" (50mm) gauges. Ranges include 0-60 psi
(0-4.1 BAR),0-100 psi (0-6.9 BAR) and 0-120 psi (0-8.3 BAR). When specified with regulator, the correct range will be supplied.
Fluorocarbon Elastomers: Diaphragm, as well as gaskets and O-rings, are made with a special elastomer to prevent deterioration from elements in the air supply, such as flame retardant synthetic lubricants normally destructive to the standard BUNA-N material.
Tamper Resistant Cover: A 316 stainless steel hexagonal cover placed over the adjusting screw and threaded onto the bonnet of the regulator with a wrench, prevents ordinary hand adjustments. Supplied with an O-ring that is designed to seal the adjusting screws threads in captured bleed applications. (T-51FRCT Only)
Low Bleed Diaphragm: (Soft Relief Seat): Used in applications where it is desirable to minimize the standard bleed rate of the regulator while maintaining the ability to relieve excess pressure at the regulator. Bleed rate is reduced from less than 6 SCFH (2.8 LPM) to less than 0.1 SCFH (0.05 LPM). (Type 51FRCT only)
   
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