16 800.727.5646 • www.marshbellofram.com Air Regulators Features • Excellent regulation, stability and repeatability • Corrosion-resistant construction (no brass components, Type 51FR and Type 51AFR) • NACE Constructed (Type 51FRCT Corrosive Tec) • Low droop • Small package size • Panel, bracket or pipe mounting • Fluorocarbon pintle seat (Type 51FR, Type 51AFR and Type 51FRCT) • Auto drain option (Type 51AFR) • Meets ATEX II 2 G Dc T 6 (Non-electrical certification) Type 51 Pressure Regulator Series Type 51 Pressure Regulator Series Description 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), 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. Materials of Construction for 51FRWT Aluminum alloy bonnet, body, and filter bowl, acetal resin, plated steel and aluminum internals. Nitrile diaphragm and finished with an vinyl paint. From industry to industry, Marsh Bellofram’s Type 51 Series of Regulators offer a low-cost, high performance option for a wide range of applications. Type 51 Options •= option is available s = option is standard Type 51R Type 51FR Type 51AFR Type 51FRCT 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 Finish • • • 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 • • • • These regulators are available standard (Type 51R) or as filter-regulators (Type 51FR and Type 51FRCT) 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. T51 FRCT T51 R

www.marshbellofram.com • 800.727.5646 17 Air Regulators Type 51R Type 51FR Filter and Type 51AFR Auto Filter Type 51FRCT Corrosive Tec Type 51FRWT Maximum Supply Pressure 250 PSIG (17.3 BAR) 250 PSIG (17.3 BAR) 250 PSIG (17.3 BAR) 250 PSIG (17.3 BAR) Output Pressure Range 0-30 PSIG (0-2.1 BAR) 0-60 PSIG (0-4.1 BAR) 0-100 PSIG (0-6.9 BAR) 0-30 PSIG (0-2.1 BAR) 0-60 PSIG (0-4.1 BAR) 0-100 PSIG (0-6.9 BAR) 0-30 PSIG (0-2.1 BAR) 0-60 PSIG (0-4.1 BAR) 0-120 PSIG (0-8.3 BAR) 0-30 PSIG (0-2.1 BAR) 0-60 PSIG (0-4.1 BAR) 0-120 PSIG (0-8.3 BAR) Supply Pressure Sensitivity @ 25 psig / 1.7 BAR change in...

18 800.727.5646 • www.marshbellofram.com Air Regulators Type 51 Ordering Information Part Number Port Size (NPT) Set Point Range BAR psig T51R 960-222-000 1/4 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 1/4 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 1/4 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 1/4 0-2.1 0-30 960-304-000 0-4.1 0-60 960-305-000 0-8.3 0-120 Type 51 Option Ordering Matrix Replace last three digits of part number with digits from table below. Option 1 2 3 4 5 6 7 8 9 10 11 1 Fluorocarbon...