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Bellofram Pressure Regulator, Type 41

Type 41 Pressure Regulator

Brand: Marsh Bellofram Group of Companies
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The Type 41 Precision Air Pressure Regulator incorporates a patented Bellofram rolling diaphragm design and is ideal for applications which require high flow capacity, low droop, high accuracy and fine adjustment sensitivity.

Type 41 regulators offer reduced size and several mounting options, allowing them to be used as compact drop-in replacements for other manufacturers’ models.

The rugged design and construction of the Type 41 incorporates precision cast aluminum housings which are finished with vinyl paint to resist scratches, weathering and other challenging environmental conditions.

Use of quality materials ensures long, trouble-free operation. All units are pressure tested and chromate treated for internal corrosion resistance. 

A rubberized, soft-seat valve stem provides stability and “forgives” dirt and other foreign matter. An aspirator maintains downstream pressure and compensates for droop when high flow occurs.

The gauge port is convenient for gauge installation and can also be used as an additional full flow outlet. Two available versions, Type 41-1 and 41-2 offer the same performance in slightly different packages.
Features
  • Superior Regulation Characteristics
  • Rugged, Corrosion-resistant Construction
  • Excellent Stability and Repeatability
  • Self-relieving of Excess Downstream Pressure
  • Low Droop at High Flow
  • Multiple Mounting Options
  • Easy Mounting (One Panel Hole), Compact Size, Adjustment Sensitivity (32 Threads per Inch on the Adjusting Screw) and Knob
  • Optional Design Modifications Include Fluorocarbon Pintle, Non-relieving Versions, Epoxy Finish, Tapped Vent and Mounting Bracket Designs

1 - 12 of 980 Part Numbers
960-113
960-113
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Standard
  • Relief - Self-Relieving
  • Paint - Vinyl
  • Mounting - Pipe or Panel
  • Gauge - No Gauge
  • Port Thread - NPT
960-113-000
960-113-000
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Not Required
  • Pintle Material - Standard
  • Relief - Self-Relieving
  • Paint - Vinyl
  • Vent - Standard
  • Mounting - Pipe or Panel
  • Gauge - No Gauge
  • Port Thread - NPT
960-113-000-BSPT
960-113-000-BSPT
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Not Required
  • Pintle Material - Standard
  • Relief - Self-Relieving
  • Paint - Vinyl
  • Vent - Standard
  • Mounting - Pipe or Panel
  • Gauge - No Gauge
  • Port Thread - BSPT
960-113-001
960-113-001
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Self-Relieving
  • Paint - Vinyl
  • Vent - Standard
  • Mounting - Pipe or Panel
  • Gauge - No Gauge
  • Port Thread - NPT
960-113-001-002
960-113-001-002
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Non-Relieving
  • Paint - Vinyl
  • Vent - Standard
  • Mounting - Pipe or Panel
  • Gauge - No Gauge
  • Port Thread - NPT
960-113-001-002-005
960-113-001-002-005
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Non-Relieving
  • Paint - Epoxy
  • Mounting - Pipe or Panel
  • Gauge - No Gauge
  • Port Thread - NPT
960-113-001-002-005-007
960-113-001-002-005-007
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Non-Relieving
  • Paint - Epoxy
  • Mounting - Bracket
  • Gauge - No Gauge
  • Port Thread - NPT
960-113-001-002-005-007-008
960-113-001-002-005-007-008
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Non-Relieving
  • Paint - Epoxy
  • Vent - Standard
  • Mounting - Bracket
  • Gauge - Pressure Gauge
  • Port Thread - NPT
960-113-001-002-005-007-008-BSPT
960-113-001-002-005-007-008-BSPT
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Non-Relieving
  • Paint - Epoxy
  • Vent - Standard
  • Mounting - Bracket
  • Gauge - Pressure Gauge
  • Port Thread - BSPT
960-113-001-002-005-007-BSPT
960-113-001-002-005-007-BSPT
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Non-Relieving
  • Paint - Epoxy
  • Vent - Standard
  • Mounting - Bracket
  • Gauge - No Gauge
  • Port Thread - BSPT
960-113-001-002-005-008
960-113-001-002-005-008
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Non-Relieving
  • Paint - Epoxy
  • Mounting - Pipe or Panel
  • Gauge - Pressure Gauge
  • Port Thread - NPT
960-113-001-002-005-008-BSPT
960-113-001-002-005-008-BSPT
  • Base Model - 41-1
  • Pressure Range - psig: 0 to 2 (bar: 0 to 0.1, kPa: 0 to 13.8)
  • Options - Required
  • Pintle Material - Fluorocarbon
  • Relief - Non-Relieving
  • Paint - Epoxy
  • Mounting - Pipe or Panel
  • Gauge - Pressure Gauge
  • Port Thread - BSPT
1 - 12 of 980 Part Numbers

View_Details

Specifications

Brand

Sensitivity

  • 1” WC (2.54 cm)

Temperature Range

  • -18° to 71° C (0° to 160° F)

Flow Capacity at 100 psig (6.9 bar) Supply and 20 psig (1.4 bar) Outlet

  • 25 scfm (700 LPM)

Effect of Supply Pressure Variation (25 psig / 1.7 bar) on Outlet Pressure

  • ± 0.35 psig (24 mbar)

Exhaust Capacity 5 psig (0.35 bar) Above 20 psig Set Point

  • 0.1-0.45 scfm Typical 2.8-12.7 LPM

Maximum Supply Pressure

  • 250 psig (17.2 bar)

Effect of Changes in Flow on Regulated Pressure (100 psig / 6.9 bar Supply)

  • 1 psig (0.07 bar) over flow of 10 scfm (0-30 psig / 0-2.1 bar Range, 1/4” NPT, 20 psig / 1.4 bar Set Point)

Output Pressure Ranges

  • 0 to 60 psig (0 to 4.1 bar)
  • 0 to 30 psig (0 to 2.1 bar)
  • 0-10 psig (0-0.69 bar)
  • 0 to 2 psig (0 to 0.14 bar)
  • 0 to 100 psig (0 to 6.9 bar)

Total Air Consumption at Maximum Output

  • 6 SCFH (2.8 LPM)

Port Size

  • 1/4” BSPT
  • 1/4” NPT

Materials of Construction

  • Spring: Music wire
  • Knob: Phenolic Plastic
  • Diaphragm: Buna-N Polyester Fabric
  • Trim: -Plated Steel, Brass, Acetal Resin
  • Adjusting Screw: -Plated Steel
  • Body: Die Cast Aluminum with vinyl Paint

Mounting Options

  • Pipe
  • Panel
  • Bracket

  • Panel Mounted Applications
  • Consant Flow Monitoring
  • Corrosive Environments
  • Low or Zero Flow Monitoring
  • Downstream Flow

Documentation

Data Sheets

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