Full-Size Series Port Sizes 1/4" to 3/4"; Flow to 180 scfm (5098 l/min)

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Filter and regulator consolidated in a single assembly
Modular assembly and mounting
Polycarbonate plastic filter bowl with steel shatterguard, or zinc bowl with clear nylon sight glass
Automatic drain, manual drain, or external automatic drain
Self-relieving piston-type regulator, or non-relieving
Pressure adjustment locking key
Pressure gauge

Integrated Filter/Regulators Full-Size Series Product Overview

The Full-Size Series Integrated Filter/Regulators simplify air quality control by combining a filter and regulator into a single assembly. They offer modular assembly and mounting for easy integration. You have the choice between a polycarbonate plastic filter bowl with a steel shatterguard or a zinc bowl with a clear nylon sight glass, depending on your requirements. Maintenance options include automatic drain, manual drain, or external automatic drain.

The regulators in this series are self-relieving and piston-type, though non-relieving options are available. To ensure secure pressure settings, a pressure adjustment locking key is included. Additionally, a pressure gauge is provided for precise monitoring, making the Full-Size Series Integrated Filter/Regulators a versatile and reliable solution for air quality control.

Please refer to the side and below for Integrated Filter/Regulators Full-Size Series catalogs, installation instructions, and technical data. Additionally, you have the option to filter through all available Integrated Filter/Regulators Full-Size Series variant that meets your requirements.

Series Overview ❯

Product Overview

The ROSS Controls Full-Size Integrated Filter/Regulator is a high-flow modular air preparation unit combining filtration and pressure regulation for pneumatic systems with port sizes from 1/4" to 3/4" and flow requirements to 180 scfm (5098 l/min). The modular assembly and mounting design enables the to be combined with ROSS lubricators and individual filter units into complete FRL trains, providing a full air preparation system in a compact, plumbing-minimal configuration.

The self-relieving piston-type regulator provides precise, stable outlet pressure control with outlet pressure adjustable up to 125 psig (9 bar). A non-relieving regulator option is available for applications requiring downstream pressure retention. A pressure adjustment locking key is standard on all units, preventing unauthorized pressure changes after commissioning and supporting process consistency requirements across production equipment.

Bowl material options include a polycarbonate plastic filter bowl with steel shatterguard and a zinc bowl with clear nylon sight glass. Three drain configurations are available: internal automatic drain, manual drain, and external automatic drain, providing maximum flexibility for condensate management in different installation environments. The pressure gauge is included on all units.

The targets the higher end of mid-size pneumatic circuit requirements, bridging the gap between standard mid-size units (to approximately 100-138 scfm) and the high-capacity series. Applications include machine tool main air preparation, large automation equipment supply, automotive assembly cell air preparation, and other industrial installations requiring 3/4" port connections and flow to 180 scfm.

Key Engineering Features

Flow to 180 scfm (5098 l/min) at 3/4" Ports - Higher flow capacity than standard full-size FRs, supporting main air supply for large machine tools, heavy automation cells, and industrial equipment with multiple simultaneous pneumatic loads at 3/4" port connections.
Modular Assembly and Mounting - Direct modular assembly with ROSS compatible lubricators and filter units creates complete FRL trains without intermediate pipe connections, reducing installation length, connection hardware, and potential leak points.
Piston-Type Regulator with 125 psig (9 bar) Outlet - Piston regulator provides consistent regulated outlet pressure up to 125 psig across the full flow range, supporting high-force pneumatic circuits in clamping, pressing, and actuation applications.
Pressure Adjustment Locking Key - Removable locking key is standard on all units, preventing unauthorized pressure adjustment after commissioning and supporting process quality and machine safety requirements in production environments.
Three Drain Configurations - Internal automatic drain (for unattended systems), manual drain (for supervised installations), and external automatic drain (for central condensate collection) provide maximum installation flexibility.
Polycarbonate Bowl with Steel Shatterguard - Standard polycarbonate bowl allows continuous visual condensate inspection; steel shatterguard provides fragment containment for the higher operating pressures typical of 3/4" supply circuits.
Zinc Bowl with Clear Nylon Sight Glass - Metal zinc bowl extends maximum operating pressure to 200 psig and upper temperature rating to 175 degrees F (80 degrees C), with clear nylon sight glass providing condensate level visibility.
Non-Relieving Regulator Option - Non-relieving regulator option retains downstream pressure after supply shut-off, required for circuits where controlled pressure hold is part of the machine safety or process shutdown sequence.
Pressure Gauge Included - Factory-installed pressure gauge provides direct visual monitoring of regulated outlet pressure. Gauge ports are located front and rear for installation flexibility.
Full Port Size Range 1/4" to 3/4" - Covers the complete range from instrument-size 1/4" ports through the 3/4" main supply connections common in high-flow industrial machine tool and heavy automation installations.

Technical Specifications

General Specifications

Parameter	Specification
Series	Full-Size
Mounting Type	Modular assembly and mounting
Port Sizes	1/4", 3/8", 1/2", and 3/4" (NPT or G/BSPP)
Maximum Flow	180 scfm (5098 l/min)
Regulator Type	Piston; self-relieving (standard) or non-relieving
Filter Element Rating	5 micron (polyethylene standard)
Outlet Pressure Range	Adjustable up to 125 psig (9 bar)
Operating Pressure - Polycarbonate Bowl (Auto Drain)	Up to 150 psig (10 bar)
Operating Pressure - Metal Bowl (Auto Drain)	Up to 200 psig (14 bar)
Operating Pressure - Polycarbonate Bowl (Manual Drain)	0 to 150 psig (0 to 10 bar)
Operating Pressure - Metal Bowl (Manual Drain)	0 to 200 psig (14 bar)
Ambient/Media Temperature - Polycarbonate Bowl	40 to 125 degrees F (4 to 52 degrees C)
Ambient/Media Temperature - Metal Bowl	40 to 175 degrees F (4 to 80 degrees C)
Pressure Adjustment	Removable locking key (tamper-resistant)
Pressure Gauge	0 to 200 psig (0 to 14 bar); 1/4 NPT ports front and rear
Flow Media	Compressed air

Certifications & Compliance

Typical Applications & Industries

Machine Tool and Heavy Manufacturing

Machine tool main compressed air supply preparation where the 180 scfm capacity and 3/4" port options accommodate the full pneumatic demand of multi-function CNC machining centers with simultaneous spindle purge, workholding, coolant blow-off, and tool change actuator demands.
Large transfer line air preparation where a single FR conditions compressed air for an entire workstation including multiple fixture clamps, part transfer actuators, and gauging stations operating simultaneously.
Heavy-duty forming and stamping press pneumatic supply where regulated pressure to 125 psig supports high-force clamping and blankholder circuits, and the non-relieving option maintains clamp pressure during controlled press stops.
Horizontal and vertical machining center air preparation where the modular FRL train integrates filter, regulator, and lubricator in a single assembly, with the locking key ensuring consistent spindle purge pressure throughout production shifts.

Automotive Assembly and Welding

Assembly cell main air preparation where the 180 scfm capacity supports simultaneous operation of multiple nut runners, riveters, pneumatic grippers, and part detection sensors from a single high-capacity FR at the cell supply drop.
Welding fixture air preparation for large automated welding cells where multiple pneumatic clamps operate simultaneously during welding cycles, requiring high flow capacity and consistent regulated pressure throughout the weld sequence.
Automotive body shop underbody and chassis fixture air preparation where 3/4" supply connections and high flow capacity are standard and the pressure locking key maintains consistent clamping force between shifts.
Engine assembly line air preparation for press-fit, torque, and assembly stations where clean regulated air at consistent pressure is essential for assembly quality and tool performance throughout the production shift.

Packaging and Process

Packaging line main air preparation for high-speed case erectors, carton formers, and palletizing equipment where multiple high-cycle actuators operate simultaneously and consistent regulated pressure is essential for reliable packaging cycle completion.
Beverage and food production line main air drops serving high-speed filling, capping, labeling, and conveying actuators where the external drain option allows condensate discharge to a central collection point without manual drain maintenance.
Pharmaceutical manufacturing equipment air preparation where the locking key maintains validated process pressure set points and the metal bowl provides chemical resistance to cleaning agents used in pharmaceutical GMP environments.

Energy and Infrastructure

Compressed air distribution system conditioning for industrial facilities where a at each major machine drop conditions air before distribution to individual tool and actuator circuits throughout the machine.
Power generation facility pneumatic instrument air preparation where consistent regulated pressure and reliable filtration support the pneumatic positioners, actuators, and control devices throughout the plant.
Industrial test stand main air supply preparation where high flow capacity, 125 psig outlet pressure capability, and stable regulation support multi-channel test systems with simultaneous actuation demands.

Ordering and Model Number Configuration

The Full-Size Integrated Filter/Regulator is available in multiple port size, bowl type, and drain configuration options. Contact ROSS Controls or visit the product page to select and configure the appropriate model number.

Self-relieving piston regulator is standard. Specify non-relieving option when downstream pressure retention after supply shut-off is required.

Pressure adjustment locking key is standard on all units.

Three drain options: internal automatic drain, manual drain, and external automatic drain. The external automatic drain is appropriate for installations with central condensate collection systems.

For G (BSPP) threads, add the appropriate prefix to the model number.

Contact ROSS Controls at (800) 438-7677 for complete model number configurations, modular assembly hardware specifications, and replacement element model numbers.

Accessories

Replacement Filter Elements

Standard 5-micron polyethylene element and optional sintered bronze elements in 5-, 20-, and 40-micron ratings are available for the Full-Size Integrated FR. Contact ROSS Controls for specific replacement element model numbers for your unit configuration.

External Automatic Drain

An external automatic drain option is available for the , enabling remote condensate discharge to a central drain collection system. This is particularly useful for installations where the unit is mounted in an inaccessible location or where central condensate collection is required. Refer to ROSS Controls accessories catalog or contact ROSS for model numbers and specifications.

Modular Lubricator and Filter Add-Ons

The modular mounting design supports direct assembly with ROSS full-size compatible lubricators and individual filter units. Contact ROSS Controls for modular interface hardware model numbers and complete FRL assembly configurations for the platform.

Frequently Asked Questions (FAQ)

Q: What is the maximum flow capacity of the Full-Size?

A: The is rated for flow to 180 scfm (5098 l/min). This is the highest flow capacity among the ROSS modular integrated filter/regulator series and accommodates the main air supply requirements of large machine tools, heavy automation cells, and multi-actuator production systems at 3/4" port connections. For even higher flow requirements, the inline 134 High-Capacity Series (to 270 scfm) should be considered.

Q: What port sizes are available?

A: The is available in 1/4 inch, 3/8 inch, 1/2 inch, and 3/4 inch port sizes in both NPT and G (BSPP) thread types. G thread models are available; contact ROSS Controls for the appropriate G thread model numbers.

Q: What is the maximum outlet pressure?

A: The piston-type regulator provides outlet pressure adjustable up to 125 psig (9 bar). This range supports high-force pneumatic clamping, pressing, and actuation circuits in addition to standard operating pressure ranges.

Q: What drain options are available?

A: Three drain configurations are available: internal automatic drain (condensate removed automatically without operator intervention), manual drain (operator-controlled condensate removal), and external automatic drain (condensate discharged remotely to a central collection system). The external automatic drain is particularly useful for installations in inaccessible locations or facilities with central condensate management systems.

Q: What does the pressure adjustment locking key do?

A: The standard locking key prevents unauthorized changes to the regulated pressure set point after commissioning. Once the desired pressure is set and the key is removed, the adjustment mechanism is locked in position. This is essential for production environments where consistent actuator force, cylinder speed, or process pressure must be maintained between shifts and operators without risk of accidental or intentional adjustment.

Q: What bowl options are available?

A: The standard polycarbonate bowl with steel shatterguard provides visual condensate inspection and is rated to 150 psig at ambient/media temperatures to 125 degrees F (52 degrees C). The zinc bowl with clear nylon sight glass extends the maximum operating pressure to 200 psig and upper temperature limit to 175 degrees F (80 degrees C). Select the zinc bowl for high-pressure, high-temperature, or chemically aggressive environments.

Q: Is a non-relieving regulator available?

A: Yes. A non-relieving regulator option is available for the . This configuration retains downstream pressure after supply shut-off, required when pneumatic clamps or actuators must hold position during controlled machine stop sequences or when the downstream circuit must not be vented through the regulator.

Q: How does the compare to the 133 Full-Size Series?

A: Both the and 133 are modular full-size integrated FRs for port sizes 1/4" to 3/4" with piston regulators and locking keys. The key differences are flow capacity (: 180 scfm vs. 133: 138 scfm) and the availability of a non-relieving regulator option and external drain option on the . The also supports a more complete range of bowl, drain, and regulator configurations.

Q: How does the compare to the MD4 Series?

A: Both are full-size modular integrated FRs for 3/8" to 3/4" ports. The uses a piston-type regulator (standard max outlet 125 psig), while the MD4 uses a diaphragm-type regulator (max outlet up to 175 psig with metal bowl). The MD4 also offers integrated L-O-X Lockout Valve options that are not available on the . The supports external drain, which is an option not highlighted in the MD4 specification. Select based on whether higher outlet pressure capability or integrated lockout valve is the priority.

Q: Can the be assembled into a modular FRL train?

A: Yes. The modular mounting design supports direct assembly with compatible ROSS lubricators and filter units using modular interface hardware. Contact ROSS Controls at (800) 438-7677 for specific modular assembly model numbers and interface hardware specifications for the platform.

Q: What filter element is standard and what alternatives are available?

A: The standard element is a 5-micron polyethylene element. Optional sintered bronze elements in 5-, 20-, and 40-micron ratings are available. Contact ROSS Controls for replacement element model numbers for the .

Q: What is the warranty?

A: ROSS Controls provides a one-year warranty on all products covering defects in material and workmanship from the date of purchase. Contact ROSS Controls USA at (800) 438-7677 for technical support or warranty claims.

Installation & Maintenance Guidelines

Mount with the bowl oriented downward for proper condensate collection and drain operation.
For modular assembly with a lubricator or additional filter, follow ROSS Controls modular assembly instructions to ensure proper interface seal engagement and torque specifications.
Do not exceed 150 psig with polycarbonate bowl models or 200 psig with zinc bowl models.
Protect polycarbonate bowls from contact with solvents and chemicals that attack polycarbonate. Use zinc bowl models in chemically aggressive environments.
Set the regulated outlet pressure then remove the locking key. Store the locking key in a secure location accessible to authorized maintenance personnel only.
For external automatic drain installations, route the drain outlet to a condensate collection point with no back pressure and adequate discharge capacity.
For manual drain models, establish a drain interval based on system humidity levels and observed condensate accumulation rates.
Replace the filter element when pressure drop across the unit increases noticeably or on a scheduled maintenance interval.
Use thread sealant or PTFE tape on NPT connections; apply sparingly to prevent contamination of the air circuit.
Provide adequate clearance below the unit for bowl removal during filter element replacement and maintenance; allow minimum clearance per dimensional data for the selected bowl type.

Warranty & Global Support

ROSS Controls provides a one-year warranty on all products, covering defects in material and workmanship from the date of purchase.

Global technical support is available through ROSS offices in the USA (headquarters in Ferndale, Michigan), Canada, Brazil, Germany, France, United Kingdom, India, China, and Japan.

Contact ROSS Controls USA at (800) 438-7677 or visit rosscontrols.com for product configuration, technical support, and distributor locator services.

For complete technical data, dimensional drawings, and product configurator access, visit the ROSS Controls product page or contact ROSS Controls directly.

Download Catalog: https://www.rosscontrols.com/en/series/74-full-size-series