Type 10 Air Pressure Regulator with 0.1% Accuracy
The Marsh Bellofram Type 10 is a high-precision air regulator, designed to control output pressure with accuracy of 0.1% and high-repeatability, with very low sensitivity to changes in supply pressure, ambient temperature and flow. The highly rugged design of the [...]
Type 110 Large Forward and Exhaust Flow Air Pressure Regulator
The Type 110 combines the proven technology of the Type 10 regulator with the large pneumatic booster of the Type 79 Relay. The result is a precise, crisply responding regulator that can achieve very large forward and exhaust flows. Forward [...]
Type 40 Air Pressure Regulator
The Type 40 is a reliable adjustable air pressure regulator, designed for instrumentation and general purpose use. Test data for the Type 40 shows excellent performance characteristics in such areas as regulated pressure vs. flow, forward-to-reverse flow offset, supply pressure [...]
Type 41 Precision Air Pressure Regulator
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 [...]
Type 50 & Type 50 NACE Precision Filter Air Set Regulators
The Marsh Bellofram Type 50 & Type 50 NACE are reliable, precision filter air set pressure regulators, designed for instrumentation and general purpose use in both standard (Type 50) and corrosive environments (Type 50 NACE). The Type 50 NACE complies [...]
Type 51 High-Performance, Low-Cost Precision Air Regulator
Type 51 Precision Air Regulators offers a high-performance in a compact, low-cost package, offering output pressure ranges to 100 psig; 6.9 BAR (120 psig; 8.3 BAR in T-51FR Corrosive Tec & T51FRWT). Maximum supply pressure is 250 psi (17.3 BAR). [...]
Type 51 Stainless Steel Regulators and Filters (NACE)
The Type 51SS regulator is designed for service with a variety of corrosive gases and environments and comply with NACE MR-01-75. Special construction includes 316 stainless steel housing and filter assemblies, with fluorocarbon elastomers used for the control diaphragm and [...]
Type 60 & Type 65 Preset General Purpose Air Regulators
Type 60 & Type 65 Precision Air Regulators are reliable precision units designed for instrumentation and general purpose use. The Type 60 is a preset, fixed-pressure unit with a dripwell. The Type 65 is without a dripwell. Test data for [...]
Type 70 High-Flow Air Pressure Regulator
The Marsh Bellofram Type 70 air pressure regulator is expressly designed for applications requiring substantial flow capacity of up to 80 SCFM (2250 LPM) and accurate pressure controls. Downstream pressure can be set within 0.25 in. (6.3mm) of water column [...]
Type 70BP High-Flow Back Pressure Air Regulator
The Type 70BP back pressure air regulator is a high-flow, high-precision pneumatic relief valve with adjustable set point. It is expressly designed for applications requiring high flow capacity and accurate pressure controls. It may be used in place of a [...]
Type 77 Vacuum Pressure Regulator
The Type 77 Vacuum Pressure Regulator incorporates a fixed negative 15 psig bias spring to maintain vacuum outputs up to 29″ Hg. An adjustable opposing range spring increases controlled pressure outputs up to 150 psig. Output pressure droop under varying [...]
Type 78 Direct Acting Air Pressure Regulator
The Marsh Bellofram Type 78 is a direct-acting, high-performance air pressure regulator designed 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 [...]
Type 92 Subminiature Regulators
The Type 92 Subminiature Regulator is a compact, low-cost unit which operates in pressure ranges up to 100 psi, with a maximum supply pressure of 150 psi. It provides dependable reliability and accuracy for low flow or dead end applications. [...]
Type M1R & Type M2R Low-cost Miniature Air Regulators
The Type M1R Miniature Air Regulator is a compact, low cost regulator, operating in output pressure ranges up to 120 psi, with a maximum supply pressure of 145 psi. The Type M1R is available in 1/8″ and 1/4 ” NPT [...]
Type 20 Precision Pneumatic (Air) Relay
The Marsh Bellofram Type 20 is a compact, two-stage, pilot operated 1:1 air relay with positive and negative bias adjustment capability. It accepts a signal pressure and, when combined with bias adjustment, maintains a resultant output pressure with an accuracy [...]
Type 72 & Type 72HR Positive Bias Booster Pneumatic (Air) Relays
Marsh Bellofram Type 72 & Type 72HR positive bias booster pneumatic relays are used when high flow capacity is required. Offered in four adjustable ranges with exceptionally high flow capacity of up to 50 SCFM (1400 LPM) with minimal pressure [...]
Type 75 & Type 75HR Pneumatic (Air) Relays
The Marsh Bellofram Type 75 pneumatic (air) relays use signal pressure to accurately control output pressure over a wide range of flow and supply pressure variations. Under these varying flow conditions, output pressure is maintained by use of an aspirator [...]
Type 79 High Flow & Type 79HR Precision Air Relays
Marsh Bellofram Type 79 1:1 ratio high-flow precision pneumatic (air) relays are designed for applications where precise flow control is required. The Type 79 can achieve flow rates of well over 200 SCFM (5695 LPM). Use of a balanced pintle [...]
Type 1000 I/P & E/P Transducers
The Marsh Bellofram Type 1000 is an electro-pneumatic transducer that reduces a supply pressure to a regulated output pressure directly proportional to a converted electrical input signal. The Type 1000 accepts a wide range of supply pressures, ranging from a [...]
Type 1001 I/P & E/P Transducers
The Marsh Bellofram Type 1001 is a patented family of electro-pneumatic instruments that is used to reduce a supply pressure to a regulated output pressure which is directly proportional to a two-wire current or three-wire voltage input. This design incorporates [...]
Type 1500 I/P & E/P Transducers
The Marsh Bellofram Type 1500 electro-pneumatic transducer converts an electrical signal to a proportional pressure output. It provides low-cost precision electro-pneumatic control to actuators, valves, positioners, final control elements and high-flow controls. Occupying a small overall footprint, Type 1500′s compact [...]
Type 2000 & Type 2000 EX I/P & E/P Transducers
The Marsh Bellofram Type 2000 is a highly robust E/P transducer with typical full-scale accuracy of 0.1%, designed to provide precise electronic pressure control of humid (non-condensing) and oil-laden process gases within harsh industrial environments. With a unique design that [...]
Type 5000 P/I Transducers
The Type 5000 is a compact, rugged and reliable two-wire pressure transmitter, expressly designed for industrial field service. This precision unit converts a signal pressure input into a precise 4-20 mA or 10-50 mA output. The lightweight housing includes a [...]
Filter, Regulator, Lubricator Assemblies (FRLs)
FRL’s are designed with economy and convenience in mind. Units are available in 0-30, 0-60, and 0-120 psi output pressure ranges and 3/8″, 1/2″, 3/4″ and 1″ NPT pipe sizes with a maximum supply pressure of 145 psi.A variety of [...]
Digital Pressure Indicator
The Marsh Instruments Digital Pressure Indicator is portable, lightweight, hand-held testing and calibrating instrument indicates pressure to 50 psig at accuracy levels of ±0.25% of reading ±1 count. A state-of-the-art semiconductor-type pressure transducer converts pressure input to analog voltage, which [...]
D3870 Series 6-Digit Frequency Input Indicator/Totalizer
The Digitec D3870 provides fast, accurate measurements even with very low frequent inputs (as low as one pulse per 100 seconds). All pulse or frequency inputs are easily displayed as rate. Easy setup with no programming or calculations required. Setup [...]
Standard Diaphragm Air Cylinders
Marsh Bellofram diaphragm Air Cylinders are actuators made from elastomers, engineered metals and fabrics. They require no lubrication and are virtually frictionless and economical. They can be used to provide lifting, clamping, pushing, coining, turning and other linear force or [...]
Super Air Cylinders
Marsh Bellofram diaphragm Super Air Cylinders are actuators made from elastomers, engineered metals and fabrics. They require no lubrication and are virtually frictionless and economical. Air cylinders can be used to provide lifting, clamping, pushing, coining, turning and other linear [...]
Small Bore Diaphragm Air Cylinders
Marsh Bellofram Small Bore Diaphragm Air Cylinders are actuators made from elastomers, engineered metals and fabrics. They require no lubrication and are virtually frictionless and economical. They can be used to provide lifting, clamping, pushing, coining, turning and other linear [...]
Type 3110 & Type 3120 E/P Analog Circuit Card Pressure Transducers
The Marsh Bellofram Type 3110 and Type 3120 are a series of single- (3110) and double-loop (3120) electro-pneumatic analog circuit-card servo pressure transducers, designed to provide compact, high-performance, economical air pressure monitoring capabilities. Occupying an overall footprint of just 2 [...]
Type 3111 Compact Analog Circuit Card HVAC Pressure Regulator
The Type 3111 Compact Analog Circuit Card Pressure Regulator is an economical version of the Type 3100 series, expressly designed for use within HVAC industry applications. With overall product dimensions that are identical to the Type 3100, the 3111 has [...]
Type 3411 Digital Circuit Card HVAC Pressure Regulator
The Type 3411 Circuit Card Pressure Regulator is expressly designed for use with spring-return air-duct cylinders in the HVAC industry. The units are designed to regulate air pressure in proportion to an analog electrical signal (AUTO) or via an over-ride [...]
Type 3410 & Type 3420 Digital Circuit Card OEM Pressure Regulators
The compact Type 3410 (single-loop) and Type 3420 (double-loop) Circuit-Card Pressure Regulators are perfect for size-conscious OEM’s, without sacrificing any of the high-end performance normally associated with full-size I/P’s. The T3400 is available with either of two user interfaces: the [...]
Type 3210 & Type 3220 Analog Enclosure Regulators
Type 3210 single-loop and Type 3220 double-loop electro-pneumatic servo pressure controllers incorporate two solenoid valves and an internal pressure sensor for increased sensitivity and accuracy, housed within a rugged waterproof enclosure for greater durability and performance. With current or voltage [...]
Type 3211 & Type 3221 Analog Enclosure Regulators
Type 3211 single-loop and Type 3221 double-loop pressure controllers offer non-bleeding solenoid valve technology with an integral flow booster, producing forward flows equivalent to standard industrial electronic regulators or I/P converters within a rugged, waterproof enclosure. The Type 3211/3221 is [...]
Type 3212 & Type 3222 Analog Enclosure Regulators
The Type 3212 single-loop and 3222 double-loop are non-bleeding electro-pneumatic controller with flows exceeding those of most compact standard industrial electronic regulators or I/P transducers. The 3212/3222 offers analog monitoring of the output pressure by a 0-10 VDC signal. Many [...]
Type 3215 Weatherproof Regulator with Super High Flow
The Type 3215 High-Flow Pressure Controller utilizes reliable, quick-firing solenoids, an on-board pressure sensor, and a precision 180 scfm booster to achieve excellent accuracy and stability. There are many custom output ranges between 0 and 150 psig (1.0 MPa). The [...]
Type 3510 & Type 3520 Digital Enclosure Regulators
Marsh Bellofram Type 3510 single and Type 3520 double loop electro-pneumatic servo pressure controllers combine the advantages of reliable solenoid valves and digital control, housed in a rugged, weatherproof enclosure. Available with a local keypad programming option or RS-485 digital [...]
Type 3511 & Type 3521 Digital Enclosure Regulators
Type 3511 single- and Type 3521 double-loop digital servo pressure controllers, available with analog or digital outputs, combine all the advantages of reliable solenoid valve technology in a rugged weatherproof enclosure for greater durability and performance. The configurable units feature [...]
Type 3512 & Type 3522 Digital Enclosure Regulators
The Type 3512 single loop and 3522 double loop are single units – integrated controller and booster. The 3512/3522 offers solenoid valve technology with forward flow exceeding those of most standard industrial electronic regulators or I/P transducers. Available with a [...]
Mounting Options & Accessories
To ensure the best performance capabilities of our pressure regulators and controllers, Marsh Bellofram offers a variety of directly compatible cordsets, converters, power suppliers, control knobs, external volume boosters and other accessories. All are field tested and proven for their [...]