Bellofram PCD

Bellofram Precision Controls Division (PCD) of Marsh Bellofram designs and manufactures air and gas pressure regulators, relays, servo pressure controllers, I/Ps and E/Ps, analog circuit card pressure transducers and regulators, diaphragm air cylinders, FRLs, and compatible accessories for a wide variety of commercial and industrial applications.

Mountain Controls offers the following from Bellofram PCD:

Marsh Bellofram Group of Companies Logo

Precision Air Regulators

Marsh Bellofram precision air pressure regulators provide a high level of control, accuracy, and stability with large flow and exhaust capabilities for a variety of applications.

Model Description Typical Applications More Information

Type 10 Pressure Regulators

Bellofram Type 10 Pressure Regulator

Provides highly accurate pressure regulation with output pressure accuracy of 0.1% and low sensitivity to changes in supply pressure and flow Gas mixing, valve operators, gate actuators, positioner signal, calibration stands, air hoists, air gauging, cylinder loading, force balance hoists, disc and shoe air brakes, clamp units, web tensioning, press units, roll loading Type 10 Pressure Regulator Series Datasheet launch

Type 110 Pressure Regulators

Bellofram Type 110 Pressure Regulator

Provides the highly accurate pressure regulation of the Type 10 pressure regulators with the large pneumatic booster of the Type 79 relay Air balancing systems, zero-gravity arms, valve operators, air hoists, web tensioning, roll loading, large cylinder loading, air brakes, force balance hoists, gate actuators Type 110 Pressure Regulator Series Datasheet launch

Type 37 Pressure Regulators

Bellofram Type 37 Pressure Regulator

Provides high flow regulation with accurate and permanent control of output pressure Applications that require ability to withstand harsh and abusive environments Type 37 Air Pressure Regulator Datasheet launch

T39 Standard and Special Build Gas Regulators

Bellofram Type 39 Gas Regulator

Largest regulator of its type in the industry offered in several different materials and 6 spring ranges for precise regulation of downstream pressure and resulting process control First cuts to downstream, low-flow applications such as catalytic heaters, valve actuators, pressure controllers, and chemical injection pumps; air set; instrumentation columns; control valve supply T39 Standard Gas Regulators Datasheet launch

Type 40 Pressure Regulators

Bellofram Type 40 Pressure Regulator

Economical, reliable, rugged, self-relieving precision regulator for general purpose applications Instrumentation and applications requiring regulated pressure vs flow, forward-to-reverse flow offset, supply pressure sensitivity, repeatability, and stability Type 40 Pressure Regulator Datasheet launch

Type 41 Pressure Regulators

Bellofram Type 41 Pressure Regulator

Two types of regulators (41-1 and 41-2) offered in different configurations for applications that require high flow capacity, low droop, high accuracy, and fine-adjustment sensitivity Well suited for panel applications due to simple mounting requirements, and ideal in environments where corrosion, dirt, and other challenging conditions are a factor Type 41-1 and Type 41-2 Pressure Regulators Datasheet launch

Type 50 Filter Regulators

Bellofram Type 50 Filter Regulators

Reliable, rugged, self-relieving precision in regulating standard environments (Type 50) and corrosive environments (Type 50 NACE) Pilot-operated controllers and instruments; air chucks; air spray guns; air cylinders and actuators; and a variety of industrial pneumatic systems and equipment Type 50 and Type 50 NACE Filter Regulators Datasheet launch

Type 51 Pressure Regulators

Bellofram Type 51 Pressure Regulators

Economical, compact, high-performance stainless steel series of regulators and air filter-regulators offered in corrosion-resistant (Type 51FR and Type 51AFR) and NACE-constructed (Type 51FRCT) options Applications involving sour gas and corrosive environments; petrochemical processing; chemical plants; food processing; paper/pulp mills; pneumatic instrumentation; controllers Type 51 SS Pressure Regulator Datasheet launch

Type 60 and Type 65 Pre-Set Pressure Regulators

Bellofram Type 60 and 65 Pressure Regulators

Economical, pre-set regulators that are ideal for meeting OSHA regulations and designed for instrumentation and general purpose applications in difficult industrial environments Pilot-operated controllers and instruments; air chucks; air spray guns; air cylinders and actuators; industrial pneumatic systems and equipment Type 60 and Type 65 Pressure Regulators Datasheet launch

Type 70 High Flow Pressure Regulators and Type 70BP High Flow Back Pressure Regulators

Bellofram Type 70 and 70BP Pressure Regulators

High flow and high flow back regulators that respond quickly to minute changes in downstream pressure Applications requiring quick response to pressure fluctuation; 70BP can be used together with diaphram-operated valve and bleed orifice as a compressor controller Type 70 and Type 70BP Pressure Regulators Datasheet launch

Type 77 Vacuum Pressure Regulators

Bellofram Type 77 Vacuum Pressure Regulator

Vacuum regulator controls pressures from 29" Hg vacuum to 150 PSI with flow capacity up to 40 SCFM Provides precise control in subatomospheric pressure applications; sample collecting systems; air quality monitoring; parts coating operations Type 77 Vacuum Regulator Datasheet launch

Type 78 High Flow Air Regulators

Bellofram Type 78 Air Regulator

Direct-acting, diaphragm-operated regulator that permanently maintains a desired, set output pressure Applications requiring large flow capability and accurate pressure control Type 78 High Flow Air Regulator Datasheet launch

Type 92 Subminiature Regulators

Bellofram Type 92 Subminiature Regulator

Subminiature regulator featuring a rolling diaphragm design to provide better sensitivity, stability, and less droop Applications with limited space and/or requiring reliability and accuracy for low flow or dead-end service Type 92 Subminiature Regulator Datasheet launch

Filters, Regulators, and Lubricators (FRLs)

Bellofram FRLs

Miniature (M1) and Standard (M2) FRLs designed for service and interchangeability Applications requiring removal of particles and contaminants from compressed air in the system FRLs Datasheet launch

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Pneumatic (Air) Relays

Marsh Bellofram offers several versions and types of pneumatic (air) relays to provide cost-effective, high-performance air regulation. Among the relays they offer are positive and negative biasing, high relief, adjustable bias, and more.

Model No. Description Typical Applications More Information

Type 20, Type 20HR, and Type 20EXHR Precision Air Relays

Bellofram Type 20

Extremely accurate, compact, two-stage, pilot-operated 1:1 relay with positive and negative bias capability

Gas actuators; air hoists; disc and shoe brakes; remote positioning devices; valve rotors; control valves; tensioning systems; web tracking systems Relays and Volume Boosters Datasheet launch

Type 72 and 72HR Positive Bias Booster Relays

Bellofram Type 72

Relay featuring adjustable bias pressure, high flow capacity, and minimal pressure droop Gas flow control; tensioning control; clutch and brake control; volume boosting; dancer roll loading; calendar roll loading; cylinder bucking control; valve motor loading Type 72 and 72HR Relays Datasheet launch

Type 75 Air Relays

Bellofram Type 75

Relies on signal pressure to accurately control output pressure over a wide range of flow and supply pressure variation; optionally available in high relief and negative bias versions Volume boosting; dancer roll loading; calendar roll loading; cylinder bucking control; clutch and brake control; gas flow control; tensioning control; valve motor loading Type 75 Relays Datasheet launch

Type 79 High Flow Air Relays

Bellfram Type 79

Air=piloted or dome-loaded relay designed for precise control over high flow capacity; optionally available in high relief version Clutch and brake control; gas flow control; cylinder bucking control; tensioning control; dancer roll loading; calendar roll loading; volume boosting; valve motor loading Type 79 Relays Datasheet launch

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Electronic Pressure Transducers

Bellofram PCD designs and manufactures electro-pneumatic, high-precision voltage-to-pressure (E/P), current-to-pressure (I/P), and pressure-to-current (P/I) transducers to provide process control in valves, pneumatic relays, and flow regulators.

Model No. Description Typical Applications More Information

Type 1000 I/P and E/P Transducers

Bellofram Type 1000

Electro-pneumatic device that reduces a supply pressure to a regulated output pressure that is directly proportional to an electrical input signal Valve actuators; damper and louver actuators; valve positioners; controllers; relays; air cylinders; clutches and brakes; liquid, gas, and slurry processing instrumentation; HVAC systems; paper handling controls; textile processing systems; energy management systems; petrochemical processing systems Type 1000 Transducers Datasheet launch

Type 1001 I/P and E/P Transducers

Bellofram Type 1001

Patented line of electro-pneumatic instruments that are used to reduce a supply pressure to a regulated output pressure that is directly proportional to a two-wire current or three-wire voltage input Valve actuators; louver and damper actuators; valve positioners; relays; clutches and brakes; controllers; air cylinders; liquid and gas processing; pulp and paper mills; petrochemical processing; HVAC systems; textile processing systems; energy management; environmental control; medical equipment Type 1001 Transducers Datasheet launch

Type 1500 I/P and E/P Transducers

Bellofram Type 1500

Compact, electro-pneumatic devices that convert electrical signals into a proportional pressure output for control of actuators, valves, positioners, final control elements, and various high-flow control devices Valve actuators; valve positioners; HVAC systems; material handling systems; paper handling controls; automation systems; liquid and gas processing systems Type 1500 Transducers Datasheet launch

Type 2000 and Type 2000 EX I/P and E/P Tranducers

Bellofram Type 2000

Leverages a patented piezo-ceramic actuator to provide precision and reliability in regulating incoming supply pressure down to precise output pressure under demanding conditions Valve actuators; louver and damper actuators; valve positioners; relays; clutches and brakes; controllers; air cylinders; chemical and petrochemical instrumentation; petroleum production; pipeline transmission; electric utilities; water and wastewater systems; pulp and paper mills; textile processing systems; semiconductor industry; food and beverage; environmental control systems; construction equipment; agricultural equipment; machine tooling; material handling; automotive testing and assembly; medical equipment Type 2000 Transducers Datasheet launch

Type 5000 P/I Transducers

Bellofram Type 5000

Compact, lightweight two-wire pressure transmitters that convert a signal pressure input into a precise 4-20 or 10-50mA output Industrial field service applications Type 5000 Transducers Datasheet launch

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Servo Pressure Controllers

Marsh Bellofram offers a range of servo pressure controllers to meet the process control needs of a variety of HVAC, industrial, medical, and OEM applications.

In addition to the servo pressure controllers listed in the table below, Marsh Bellofram offers a variety of compatible accessories and mounting options for the equipment. For more information, see the Mounting Options and Accessories Datasheet launch and contact us to start your order.

Model No. Description Typical Applications More Information

Type 3110 (single-loop) and Type 3120 EP (double-loop) Analog Circuit-Card Regulators

Bellofram Type 3110/3120

Electro-pneumatic analog circuit-card servo pressure transducers that are designed to provide high-performance air pressure monitoring in a compact and economical format. Damper control; gas chromatography; process controllers; medical equipment; space-constrained and OEM applications Type 3110 and Type 3120 EP Regulators Datasheet launch

Type 3111 Compact Analog Circuit Card HVAC Pressure Regulators

Bellofram Type 3111

Economical, compact analog pressure regulator designed for use with HVAC systems. HVAC; OEM and space-constrained applications Type 3111 Regulators Datasheet launch

Type 3411 Digital Circuit Card HVAC Pressure Regulators

Bellofram Type 3411

Digital pressure regulator specifically designed for use with spring-return air-duct cylinders in HVAC systems. Heating, Ventilating, and Air Conditioning (HVAC); space-constrained and OEM applications that use single-acting cylinders, valves, or bladders Type 3411 Regulators Datasheet launch

Type 3410 and Type 3420 Digital Circuit Card OEM Pressure Regulators

Bellofram Type 3410/3420

Compact digital pressure regulators that meet the needs of space-constrained applications without losing the performance achieved with full-sized I/P's. OEM and industrial applications Type 3410 and Type 3420 Regulators Datasheet launch

Type 3210 (single-loop) and Type 3220 (double-loop) Analog Weatherproof Enclosure Regulators

Bellofram Type 3210/3220

Electro-pneumatic servo pressure controllers designed with two solenoid valves and an internal pressure sensor for increased sensitivity and accuracy. Housed in a rugged, waterproof enclosure for protection and durability. Semiconductor; robotic controllers; machinery automation; tire manufacturing and testing; molding and forming operations; general purpose, OEM, and industrial applications Type 3210 and Type 3220 Regulators Datasheet launch

Type 3211 (single-loop) and Type 3221 (double-loop) Analog Enclosure Regulators

Bellofram Type 3211/3221

Pressure controllers that feature non-bleeding solenoid valve technology paired with an integral flow booster to produce forward flows that are equivalent to standard industrial electronic regulators or I/P converters. Housed in a rugged, waterproof enclosure for protection and durability. Automotive machinery; robotics control; web tension control; tire manufacturing and testing; torque control; molding and forming operations; spray paint applications Type 3211 and Type 3221 Regulators Datasheet launch

Type 3212 (single-loop) and Type 3222 (double-loop) Analog Weatherproof Enclosure Regulators

Bellofram Type 3212/3222

Non-bleeding, electro-pneumatic, analog controller that features flows that exceed most compact standard industrial electronic regulators or I/P transducers. Automotive machinery; industrial machinery; web tension control; tire manufacturing and testing Type 3212 Regulators Datasheet launch

Type 3215 Weatherproof Regulator with Super High Flow

Bellofram Type 3215

Regulator that combines quick-firing solenoids, an on-board pressure sensor, and a 180 scfm booster to provide accuracy and stability. Applications requiring highly accurate control of air pressure Type 3215 Regulators Datasheet launch

Type 3510 (single-loop) and Type 3520 (double-loop) Digital Enclosure Regulators

Bellofram Type 3510/3520

Digital, electro-pneumatic servo pressure controllers that offer reliable solenoid valves and digital control within a rugged, weatherproof enclosure. Gripper control; welding operations; actuator control; machinery automation; precision robotics; tire manufacturing and testing; web tension control; semiconductor equipment; molding and forming operations Type 3510 and Type 3520 Regulators Datasheet launch

Type 3511 (single-loop) and Type 3521 (double-loop) Digital Enclosure Regulators

Bellofram Type 3511/3521

Digital servo pressure controllers are available in either analog or digital output, feature reliable solenoid valve technology, and are housed in a rugged, weatherproof enclosure. Gripper control; welding operations; actuator control; machinery automation; precision robotics; tire manufacturing and testing; web tension control; semiconductor equipment; molding and forming operations Type 3511 and Type 3521 Regulators Datasheet launch

Type 3512 (single-loop) and Type 3522 (double-loop) Digital Weatherproof Enclosure Regulators

Bellofram Type 3512/3522

Digital regulators that are single units featuring an integrated controller and booster, and offer solenoid valve technology that exceeds forward flow of most standard industrial electronic regulators and I/P transducers. Gripper control; welding operations; actuator control; machinery automation; precision robotics; web tension control; semiconductor equipment; molding and forming operations; tire manufacturing and testing Type 3512 and Type 3522 Regulators Datasheet launch

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Diaphragm Air Cylinders

The Marsh Bellofram Group of Companies offers three different types of diaphragm air cylinders: standard, super, and small bore. They require no lubrication, are virtually frictionless, and economical for uses such as lifting, clamping, pushing, coining, turning, and other linear force or actuation motions in a variety of applications.

These diaphragm air cylinders can be used with vacuum and gaseous pressure systems, and are often used as the following: expansion chambers, accumulators, pumps, reservoirs, shock mounts, impact absorbers, weld drivers, tensioners, dancer rolls, valve actuation, and louver controls.

For more information about Bellofram's line of diaphragm air cylingers, see the Diaphram Air Cylinders Datasheet launch and contact us to start your order.

Bellofram Diaphragm Air Filters

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Needle Valves

Bellofram standard needle valves are offered in several styles and materials, and are applicable to instrumentation, process plants, oil and gas production, and general applications that require isolation and positive shutoff.

  • Metal-to-Metal Seat Needle Valves are designed for applications involving caustic and corrosive materials
  • Soft-Seat Needle Valves are designed for applications requiring bubble-tight shutoff of liquids or gases
  • Block/Bleed Needle Valves are designed to isolate gauge legs and gauge reading, allow sampling without loss of material, and provide extra pressure ports with isolation capabilities
  • Miniature Needle Valves are designed for use with space-constrained applications

For more information, see the Bellofram Needle Valve Datasheet launch and contact us to start your order.

Bellofram Needle Valves

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