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:

Precision Air Regulators
Pneumatic (Air) Relays
Electronic Pressure Transducers
Servo Pressure Controllers
Diaphragm Air Cylinders
Needle Valves

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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	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
Type 110 Pressure Regulators	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
Type 37 Pressure Regulators	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
T39 Standard and Special Build Gas Regulators	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
Type 40 Pressure Regulators	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
Type 41 Pressure Regulators	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
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
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
Type 60 and Type 65 Pre-Set 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
Type 70 High Flow Pressure Regulators and Type 70BP High Flow Back 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
Type 77 Vacuum Pressure Regulators	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
Type 78 High Flow Air Regulators	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
Type 92 Subminiature Regulators	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
Filters, Regulators, and Lubricators (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

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	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
Type 72 and 72HR Positive Bias Booster Relays	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
Type 75 Air Relays	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
Type 79 High Flow Air Relays	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

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	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
Type 1001 I/P and E/P Transducers	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
Type 1500 I/P and E/P Transducers	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
Type 2000 and Type 2000 EX I/P and E/P Tranducers	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
Type 5000 P/I Transducers	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

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 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	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
Type 3111 Compact Analog Circuit Card HVAC Pressure Regulators	Economical, compact analog pressure regulator designed for use with HVAC systems.	HVAC; OEM and space-constrained applications	Type 3111 Regulators Datasheet
Type 3411 Digital Circuit Card HVAC Pressure Regulators	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
Type 3410 and Type 3420 Digital Circuit Card OEM Pressure Regulators	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
Type 3210 (single-loop) and Type 3220 (double-loop) Analog Weatherproof Enclosure Regulators	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
Type 3211 (single-loop) and Type 3221 (double-loop) Analog Enclosure Regulators	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
Type 3212 (single-loop) and Type 3222 (double-loop) Analog Weatherproof Enclosure Regulators	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
Type 3215 Weatherproof Regulator with Super High Flow	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
Type 3510 (single-loop) and Type 3520 (double-loop) Digital Enclosure Regulators	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
Type 3511 (single-loop) and Type 3521 (double-loop) Digital Enclosure Regulators	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
Type 3512 (single-loop) and Type 3522 (double-loop) Digital Weatherproof Enclosure Regulators	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

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 and contact us to start your order.

Bellofram Diaphragm Air Filters

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 and contact us to start your order.

Bellofram Needle Valves