Marsh Bellofram PCD Division Type 91 Subminiature Air Pressure Regulator Series - Marsh Bellofram - #1

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www.marshbellofram.com • 800.727.5646 33 Air Regulators Features • Designed for applications with limited space and for low flow or dead end service • Small package size and lightweight construction • Standard or low bleed versions available • Corrosion resistant anodized aluminum exterior • Excellent stability and repeatability • Self relieving • Low cost Type 91 The Type 91 Subminiature Regulator is a compact, low-cost unit which operates in pressure ranges up to 100 PSI, with a maximum supply pressure of 250 PSI. It provides dependable reliability and accuracy for low flow or dead end applications, but is not designed for critical Type 91 Subminiature Regulator Series Type 91 Subminiature Regulator Series Type 91 Dimensional Drawing Type 91 Type 91 Low Bleed Effect of Supply Pressure Variation (25 psig) on Outlet Pressure < 0.25 PSIG (17.02 mBAR) < 0.5 PSIG (34.5 mBAR) Exhaust Capacity (5 psig above 20 psig set point) 0.1–0.3 SCFM Typical (2.8-8.5 LPM) 0.1–0.3 SCFM Typical (2.8-8.5 LPM) Max. Supply Pressure 250 PSIG (17.2 BAR) 150 PSIG (10.3 BAR) Flow Capacity at 100 psig (6.9 BAR) Supply and 20 psig (1.4 BAR) Outlet 2.5 SCFM (71 LPM) 1.4 SCFM (40 LPM) Output Pressure Ranges 0-5 PSIG (0-0.35 BAR) 0-15 PSIG (0-1.0 BAR) 0-30 PSIG (0-2.1 BAR) 0-60 PSIG (0-4.1 BAR) 0-100 PSIG (0-6.9 BAR) 0-5 PSIG (0-0.35 BAR) 0-15 PSIG (0-1.0 BAR) 0-30 PSIG (0-2.1 BAR) 0-60 PSIG (0-4.1 BAR) 0-100 PSIG (0-6.9 BAR) Total Air Consumption @ Max Output 3 SCFH (1.42 LPM) 0.3 SCFH (0.14 LPM) Port Size 1/16 NPT / 5mm 1/16 NPT / 5mm Materials of Construction Body: Anodized Aluminum Adjusting Screw: Plated Steel Trim: Brass, Acetal Diaphragm: Fluorocarbon with Polyester Fabric Knob: Acetal Resin Spring: Music Wire Body: Anodized Aluminum Adjusting Screw: Plated Steel Trim: Brass, Acetal Diaphragm: Fluorocarbon with Polyester Fabric Knob: Acetal Resin Spring: Music Wire Size and Weight 0.875" X 0.875" X 3.33" (22.2 X 22.2 X 84.6 mm) 2.2 oz. (0.06 kg) 0.875" X 0.875" X 3.33" (22.2 X 22.2 X 84.6 mm) 2.2 oz. (0.06 kg) Mounting Options Pipe or Panel Pipe or Panel flow applications. The Type 91 subminiature regulator is available with a corrosion resistant anodized aluminum body and bonnet or with a brass body and bonnet. Both come standard with a fluorocarbon diaphragm. Type 91 Low Bleed The Type 91 low bleed version is designed for applications where low air consumption is required. The Type 91 is ideal for applications where space is limited and for dead ended/low flow service. Such applications include ink control on printing presses, panel loading applications, hand-held analyzers and calibration equipment, small cylinder operations, and all types of instrumentation applications. It can be through panel mounted or, due to its lightweight, pipe mounted. A slotted adjustment screw is available for precision control. Type 91 Option Ordering Matrix Replace last three digits of part number with digits from table below. Option Non-Relieving Slotted Adj. Screw Low Bleed Non Relieving 002 032 — Slotted Adj. Screw 003 103 Low Bleed 010 Type 91 and 91 Low Bleed Ordering Information Part Number Port Size (NPT) Set Point Range BAR PSIG Type 91 960-240-000 1/16 0-0.3 0-5 960-236-000 0-1.0 0-15 960-237-000 0-2.1 0-30 960-238-000 0-4.1 0-60 960-239-000 0-6.9 0-100 962-036-000 5mm 0-0.3 0-5 962-083-000 0-1.0 0-15 962-033-000 0-2.1 0-30 962-034-000 0-4.1 0-60 962-035-000 0-6.9 0-100 Type 91 Barbed Fittings Port Size Part Number In/Out Port 1/16 NPT 622-000-007 Gauge Port 10 - 32 UNF 622-000-031