Description Specifications Literature Description The Type 78 Direct Acting Air Pressure Regulator designed from Bellofram PCD is design to offer high-accuracy, large flow and exhaust capabilities within OEM and industrial applications. Available in five different pressure output ranges to 125 PSIG (8.6 BAR), this precision regulator offers low droop, high accuracy and fine adjustment sensitivity with maximum supply pressure rated at 400 PSIG (27.6 BAR) and achievable flow rates of well over 200 SCFM.The unique design of the Type 78 features a patented Bellofram rolling diaphragm, offering greater sensitivity and improved accuracy, along with low-friction operation and long useful service life. The Type 78 also offers low droop, fine adjustment sensitivity and a balanced pintle, which minimizes output pressure changes caused by supply pressure fluctuations. Careful design and use of quality manufacturing materials ensures long, trouble-free operation, along with a chemical conversion coating of all cast components and a vinyl paint finish. Additional optional features and accessories include low-bleed, non-relieving, square head adjustment, T-handle adjustment, tamper resistant cover, epoxy paint, tapped supply gauge port and tapped exhaust. Mounting brackets and repair kits are also available.Features:Rugged die-cast zinc and aluminum housings, pressure treated for use in harsh environmentsPort sizes of 3/8, 1/,2 3/4 and 1 NPT and BPST with 1/4 NPT gaugesFive different pressure output ranges of up to 125 PSIG (8.6 BAR)Maximum supply pressure rated at 400 PSIG (27.6 BAR)Achievable flow rates of well over 200 SCFMPipe or rail mounting capabilitiesApplications:High-flow ActuationHigh-flow LouversRollers and WindersHigh-flow Control LoopsCalibration LoopsAny OEM or Industrial Pressure Regulator Application Where High-accuracy is Required State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications General SpecificationsSensitivity:Less than 1" water columnExhaust Capacity:14 SCFM at 5 PSI / 0.3 BAR above 20 PSIG / 1.4 BARset point (0-30 PSIG / 0-2.1 BAR range unit)Air Consumption:less than 12 SCFH at 125 PSIG / 8.6 BARoutput pressureEffect of Supply Pressure on Regulated Pressure:less than ± 0.35 PSIG / 0.02 BAR for a supplyvariation of 100 PSIG / 6.9 BARSupply Pressure Max:400 PSIG / 27.6 BARPort Size:3/8 NPTRange:0-125 PSIG / 0-8.6 BARMaterials of Construction:Body: Die Cast ZincBonnet: Die Cast Aluminum AlloyKnob: Phenolic Plastic, Plated SteelDiaphragms: Nitrile Elastomers w/ Dacron FabricOther Internal Materials: Brass, Stainless Steel, and ZincMounting Options:Pipe or Panel Literature & Docs Product Specifications Accessories