“Econostyle” Check Valve

The patented “Econo Check” check valve is designed for non-oil lubricated compressors for 5 HP and under.  The compact valve design has proven to be a robust economical check valve that has sold over 8 million units in the past 10 years.

Construction: One-piece brass or plated steel body with a stainless steel spring, Fluorocarbon poppet  and high temperature engineered thermoplastic internal guides.

Max. Pressure: 200 psi
Max. Temperature: 400ºF

Non-Coded Safety Valves

Any of our ASME Coded Safety Valves can be offered as a Non-coded Safety Valve with various options.

“DP25” Drain Valves

"DP25" pull cord drain valves are designed for small tank applications where the drain valve is not easily accessible. The cable allows for easy actuation of the valve by manually pulling on the cable.

Construction:  Brass body, stem and washer, Nitrile O-ring, vinyl covered steel cable
Max. Pressure: 200 psi
Max. Temperature: 200ºF

“DP25” Drain Valves

“DU25” Drain Valves

"DU25" thumb screw drain valves are designed for bubble tight sealing for small air compressor tanks (available with ¼” NPT threaded connection).

Construction:  Brass body and stem, fluorocarbon O-ring
Max. Pressure: 200 psi
Max. Temperature: 250ºF

“DU25” Drain Valves

Model “ACM” Carry Tank Manifolds

Model “ACM” carry tank manifold feature a built-in shutoff valve and a non-code safety valve set to customer specifications. A pressure switch mount and tank pressure gauge port allow all control and outlet functions to be connected to a 1/2" NPT tank port. Flow capacity of outlet valve and safety valve make this manifold suitable for compressors of 3 HP or smaller.

Construction: Solid brass body and components, zinc-plated or stainless steel springs, Nitrile O-rings and silicon ruby safety valve seals

Model “ACM” Carry Tank Manifolds

Models “CTM” & “CTMD” Air Manifolds

Models “CTM” & “CTMD” are used when assembling air compressor systems and portable air tanks. The air manifold design incorporates a tank filler valve into the built-in shutoff valve. The filler valve mates to a typical tire chuck for easy tank pressurization. The integral non-code safety valve is factory pre-set at 150 psi. Included with the air manifolds is a tank pressure gauge.

Construction: Solid brass body and components, zinc-plated or stainless steel springs, Nitrile O-rings and silicon ruby safety valve seals

Models “CTM” & “CTMD” Air Manifolds

Model “M20053” Muffler

Model “M20053” muffler is available as an option for Model “LGM30” unloader valve, but can also be used for applications that require a silencer with high flow capabilities. The “M20053” has a 3/8” NPT inlet and is 1-1/8” long.

Construction: Brass body with aluminum diffuser screen

Models “CS12” & “CS25” Cold Start Valve

Models “CS12” & “CS25” cold start valves bleed air from the compressor head during the first few pump revolutions, reducing motor starting torque requirements. These valves are especially helpful on oil-lubed pumps that may be subject to low temperatures and low starting voltages, such as a contractor unit that may sit outside overnight and is connected to a long extension cord.

The “CS12” & “CS25” valves are installed into any convenient port upstream of the tank check valve. Typical installations are into a 1/8” NPT port in the check valve (CD in-tank check valves are available with the CS12 installed as an option), into a port tapped in the head of the pump or into a “tee” in the discharge line. When the discharge line is at zero pressure, the CS valve is open. As the pump starts, air flows out of the CS valve into the atmosphere; as the pump speed and discharge pressure increase, the valve snaps shut and stays closed until the end of the pump-up cycle. When the head is unloaded (a pressure switch un-loader or similar devise is required) the valve re-opens and is ready for the next start up.

Construction: Brass body and piston, stainless steel spring and fluorocarbon O-ring

Models “CS12” & “CS25” Cold Start Valve

Model “TV12” Tank Valve

Model “TV12” tank valve is used when the process of inflating a tank with a standard air chuck is required. The inlet is 1/8” NPT.

Construction: Brass body, nylon cap and standard tire core valve

Model “BV12” Breather Vent Valve

Model “BV12” breather vent valve is used when a one-way breather vent is required. The valve opens at a maximum of 12” water column and reseals tightly when pressure is released. Flow passage is equivalent to 7/32” diameter hole.

Construction: Brass body and cap, fluorocarbon rubber disc and stainless steel spring

“TC63” Pneumatic Throttle Control Valve

The “TC63” pneumatic throttle control valve is used with gas engine-driven compressors to reduce engine speed to idle when the continuous run control (such as Models “LGM20”, “LGM30” & “LGM40” vent unloaders or Model “P25” pilot valve) has reached its “cut-out” setting. This saves fuel and reduces engine and compressor wear.

The “TC63” is connected to the throttle control port of the vent unloader via an air line. The air line can also be connected to a “tee” of the head unloader line for pilot valve installation. The linkage is attached to the throttle lever on the engine.

During operation, the vent unloader pilot valve sends a pressure signal to the pneumatic throttle control piston to extend, pushing the throttle lever on the engine to its idle position. At the cut-in setting, the pressure signal that is applied to the pneumatic throttle control is vented by the vent unloader or pilot valve, allowing the spring to return to the piston and engine throttle lever to the original, full speed, position.

The “TC63” pneumatic throttle control valve is available in 5/8” and the operational 5/16”.
Construction: Brass body, washer, piston, jam nuts, steel bracket and music wire linkage and zinc plated screw
Max. Temperature: 250ºF
Special Ordering Instructions: Specify stoke length when ordering. If stroke length is not specified, a 5/8” valve will be shipped.

“TC12” Throttle Control – Large

This larger version of the “TC12” throttle control above for use with engines above 8 HP.

Model “CA” – Load Genie® for Tube Compression Fitting & Model “PA” – Load Genie® for Pipe

A compressor running in a “start/stop” mode operates more efficiently if the pressure trapped in the compressor head and discharge line is released after each pump-up cycle. This allows for a smoother start and the use of a motor with lower starting torque.

The most convenient way to release this trapped pressure is to use the Load Genie® combination check and unloader valve. Install the valve in the compressor discharge line and the Load Genie® will do the rest.

The Load Genie® senses air flow when the compressor is running and closes an unloading orifice port. When airflow stops (ex: when the pressure switch turns off the motor), the Load Genie® opens the unloading orifice to release head pressure, and a built-in check valve keeps receiver air from leaking back into the discharge line and compressor head.

Alternative methods rely on external un-loading valves mounted on the pressure switch or compressor. The external un-loading valves are connected with the appropriate tubing and fittings to the compressor discharge line or compressor head. A tank check valve is also required. The system, then, consists of the unloading valve, connecting the tubing with the appropriate fittings, the tank check valve and the labor for installation.

Model “CA” – Load Genie® for Tube Compression Fitting & Model “PA” – Load Genie® for Pipe

“TC12” Throttle Control

“TC12” throttle controls are used with gas engine-driven compressors to reduce the engine speed to idle when the continuous run control (such as Model “LGM20”, “LGM30” and “LGM40” vent unloaders or “P25” pilot valve) has reached its “cut-out” setting. This saves fuel, reduces noise, as well as reduces engine and compressor wear.

The 1/8” NPT inlet of the “TC12” is connected to the throttle control port of the vent un-loader or connected into a “tee” of the head unloader line of pilot valve installations. The cable end is attached to the appropriate throttle linkage on the engine and the cable housing is appropriately anchored using the supplied cable clamps.

During operation, the vent unloader or pilot valve sends a pressure signal to the “TC12” at the cut-out setting, causing the “TC12” piston to extend the control cable which pushes the throttle lever, forcing the engine to idle down. At the cut-in setting, the pressure signal going to the “TC12” is vented, allowing the spring to return the piston, cable and throttle lever to the original, full speed position.

Construction:  Brass body and piston, Nitrile O-ring, zinc-plated steel spring and retaining ring, vinyl covered, steel armored housing with stainless steel cable
Min./Max. Pressure: 60 psi/250 psi
Max. Temperature: 250ºF
Special Ordering Instructions: Specify desired length (6” increments)

Model “LGM40” – Mark IV Load Genie®

Model “LGM40” – Mark IV Load Genie® continues in the tradition of the original “LGM20” – Mark II Load Genie® & “LGM30” – Mark III Load Genie®.

Model “LGM40” is a “vent” unloader, therefore built-in head unloaders are not required on the compressor. This valve combines all of the components required for a continuous run compressor application: a pilot valve, a vent valve and a check valve.

The compact size and the combination of straight-through 90º flow design of the “LGM40” makes installation simple. Install the valve into the air receiver and attach the compressor discharge line to the valve inlet. This valve is suitable for compressors of up to 30 SCFM delivery.

Construction: Forged brass body, zinc-plated steel internal components, fluorocarbon piston ring, stainless steel springs, and a glass-filled PTFE check valve poppet
Min./Max. Cut-out Pressure: 60 psi/250 psi
Options: A 1/8” NPT tapped port for throttle control of a gas engine, a lock-out clip for “dual control” applications, a special 1/8” NPT tapped port for pressure switch un-loader valve, a vent port muffler and a toggle unloading lever for one-hand warm up control

Model “LGM40” – Mark IV Load Genie®

Model “LGM30” – Mark III Load Genie®

Model “LGM30” – Mark III Load Genie® continues the tradition of the original “LGM20” – Mark II Load Genie®. Over 20 years of experience was incorporated into the design and development of this continuous run control.

Model “LGM30” is a “vent” unloader, therefore built-in head unloaders are not required on the compressor. This valve combines all of the components required for a continuous run compressor application: a pilot valve, a vent valve and a check valve.

The compact size and straight-through flow design of Model “LGM30” – Mark III Load Genie® makes installation simple. Install the valve into the air receiver and attach the compressor discharge line to the valve inlet. This valve is suitable for compressors of up to 30 SCFM delivery.

Valve cut-in and cut-out pressures are factory set per customer specifications. If settings are not specified, the valve is set at the standard setting of 115 psi cut-out and 95 psi cut-in. The valve comes equipped with a field adjustable setting.

Construction: Forged brass body, zinc-plated steel internal components, fluorocarbon piston ring, stainless steel sprints and a glass-filled PTFE check valve poppet
Min. Cut-out Pressure: 250 psi
Options: A 1/8” NPT tapped port for throttle control of a gas engine, a lock-out clip for “dual control” applications, a special 1/8” NPT tapped port for pressure switch un-loader valve, a vent port muffler and a toggle unloading lever for one-hand warm up control

Model “LGM30” – Mark III Load Genie®

Model “LGM20” – Mark II Load Genie®

Model “LGM20” – Mark II Load Genie® is a self-contained unloading valve which can be used wherever a continuous run compressor is required. The compressor may need to run continuously because the air demanded is close to the maximum output of the compressor, or because the compressor is driven by a gasoline or diesel engine.

Model “LGM20” is a “vent” unloader, therefore built-in head unloaders are not required on the compressor. The valve contains all of the components required: a pilot valve, a vent valve, and a check valve. The end user simply has to install the Model “LGM20” – Mark II Load Genie® in the discharge line between the compressor and receiver.

Valve cut-in and cut-out pressures are factory set per customer specifications. If settings are not specified, the valve is set at the standard setting of 115 psi cut-out and 95 psi cut-in. The valve comes equipped with a field adjustable setting.

Construction: Forged brass body, brass and zinc-plated steel internal components, stainless steel springs and glass-filled PTFE poppets.
Min./Max. Cut-out Pressure: 60 psi/250 psi
Options: A 1/8” NPT tapped port for throttle control of a gas engine, a lock-out clip for “dual control” applications, a special 1/8” NPT tapped port for pressure switch unloader valve, a vent port muffler and a toggle unloading lever for one-hand warm up control

Model “LGM20” – Mark II Load Genie®

Piston-Type Check Valves

Our Piston-Type Check Valves offer bubble-tight sealing capabilities at low pressure drops. Uses include as tank check valve for small compressors or as components in pneumatic circuits.

Construction: Brass body and pistons, fluorocarbon O-rings and stainless steel springs
Max. Pressure: 250 psi
Max. Temperature: 250ºF

Piston-Type Check Valves

“B2” Check Valves

The “B2” check valve design has been specifically developed for OEM use, offering outstanding performance. High flows are ensured with oversized discharge holes and final assembly is a swaging operation, which provides the valve with a long life, but does not allow for disassembly. The “barrel” length of the “B2” check valve is shorter than the Super-Chek line, so the OEM must ensure that any “skirt” on the tank is clear of the valve discharge holes, otherwise potentially damaging back-pressure may build up on the compressor discharge line and compressor head.

Construction: Brass body, stainless steel springs and glass-filled PTFE poppet
Max. Pressure: 450 psi
Max. Temperature: 400ºF

“B2” Check Valves

Super-Chek Check Valves

The Super-Chek design has been proven over the last 15 years to be the standard for air compressor in-tank check valves. Valves may be disassembled for cleaning or repair and are 100% tested for backflow leakage performance.

Construction: One-piece brass body with stainless steel springs and glass-filled PTFE poppets with eight (8) discharge holes for quiet operation
Max. Pressure: 450 psi
Max. Temperature: 400ºF

Super-Chek Check Valves

Cast Brass (“CB”) Check Valves

The cast brass check valves have been specifically designed for installation into air compressor discharge lines. These valves come standard with a plugged 1/8” NPT unloader port.

Construction: Extra-heavy duty brass body, glass-filled PTFE poppets and stainless steel springs
Max. Pressure: 250 psi
Max. Temperature: 450ºF

Cast Brass (“CB”) Check Valves

Model “P25V”

The “P25V” venting pilot valve has all of the features of the "P25" pilot valve, plus a vent valve for unloading compressor discharge during compressor cut-out.

Construction: Precision-machined forged brass body, brass adjustments screws and stainless steel ball and spring
Max. Temperature: 400ºF
Options: A toggle for one-hand unloading, a lockout thumbscrew for dual control systems, and a 1/4" NPT nipple installed into the inlet port

Bar Stock Poppet-Type (“IC”) Check Valves

Our “IC” in-line check valves were created around our Super-Chek design. An “IC” valve can be installed in the discharge line of the compressor in those instances where an in-tank valve will not fit. These valves come standard with a 1/8” NPT un-loader port.

Construction: Brass body, glass-filled PTFE poppets and stainless steel springs
Max. Pressure: 450 psi
Max. Temperature: 400ºF

Bar Stock Poppet-Type (“IC”) Check Valves

Ball Check Valves

Our ball-type check valves offer bubble-tight sealing capabilities at low pressure drops. Uses include as tank check valves for small compressors, or as components in pneumatic circuits.

Construction: Valve bodies are brass with fluorocarbon O-rings, stainless steel balls, stainless steel springs and acetal copolymer “cages”.
Max. Pressure: 250 psi
Max. Temperature: 250ºF
Options: Model “C5038” available with adapter for 1/4” OD copper tubing compression fitting for compressor unloader application

Ball Check Valves

Model “P25”

The "P25" pilot valve is an industry standard. Valve cut-in/cut-out pressures are factory set per customer specifications. If specifications are not provided, the valve is set at standard setting of 95-115 psi, or valve can be field adjustable. Valve includes mounting boss, tapped with a 3/8”-16 UNC thread, a 1/4” NPT inlet and a 1/8” NPT outlet; comes standard with unloading sleeve for gas engine warm up. Maximum cut-out pressure is 250 psi.

Construction: Precision-machined forged brass body, brass adjustments screws and stainless steel ball and spring
Max. Temperature: 400ºF
Options: A toggle for one-hand unloading, a lockout thumbscrew for dual control systems, and a 1/4" NPT nipple installed into the inlet port

Model “PR25”, “PR38” & “PR75” – Pressure Relief Valve

Model “PR” pressure relief valves are used in systems to maintain a desired pressure level. These valves are proportional relief valves (not “pop” type safety valves). Not preset at the factory, easy field adjustments with knurled adjustment screw and locked with jam nut.

Construction: All brass with stainless steel springs. PR25 uses stainless steel ball as poppet; PR38 & PR75 use nylon poppets with Nitrile seals; VR10 uses brass poppet with fluorocarbon seal
Max Temperature: 250ºF

Model “PR25”, “PR38” & “PR75” – Pressure Relief Valve

Model “CR25” – Pressure Control Valve

Model “CR25” pressure control valve is a variable-pressure relief valve, specifically designed to be installed into the head of a small (less than 2 HP), direct-drive, tankless air compressor. A micrometer-type scale allows easy and accurate adjustment of the valve from 0 to 100 psi. The valve can be used wherever a low-flow, variable-pressure relief valve is required.

Construction: Brass body and internal components, stainless steel poppet with fluorocarbon o-ring and nylon knob
Max. Flow: 6 SCFM at 100 psi
Max. Temperature: 250ºF

Model “VR25”, “VR38”, “VR75” & “VR10”

Model “VR” vacuum relief valves are used in systems to maintain a desired vacuum level. These valves are proportional relief valves (not “pop” type safety valves). Not preset at the factory, easy field adjustments with knurled adjustment screw and locked with jam nut.

Construction: All brass with stainless steel springs. VR25 uses stainless steel ball as poppet; VR38 & VR75 use nylon poppets with Nitrile seals; VR10 uses brass poppet with fluorocarbon seal
Max Temperature: 250ºF

Model “VR25”, “VR38”, “VR75” & “VR10”

Model “NK”

Model “NK” non-code safety valves are designed for applications when an end discharge flow configuration is required. Resilient seal ensures valve is bubble-tight to within 10% of set pressure. Valve reseats at approximately 65% of set pressure. The set pressure range is 25 psi to 250 psi.

Construction: All brass, stainless steel spring and silicone rubber seal
Max. Temperature: 250ºF

Model “NK”

Model “NC”

Model “NC” non-code safety valves are field adjustable. Knurled thumbscrew and jam nut make adjustments easy and repeatable. Valves can be unset, or factory set and locked with jam nut, or factory set and staked (to deter field adjustment). The set pressure range is 25 psi to 200 psi.

Construction: All brass, stainless steel spring and silicone rubber seal
Max. Temperature: 250ºF

Model “NC”

Model “SCB”

Model “SCB” ASME safety valves are designed for applications where a piped or directed discharge is required. The unique O-ring seal ensures valve is bubble-tight to within 10% of set pressure. The valve is stamped with “UV” and “NB” symbols. Set pressure tolerance is +/-3%.

Construction: Precision machined cast brass body, brass and stainless steel springs and the O-ring seal available in silicone or fluorocarbon rubber
Max. Temperature: 250ºF

Model “SCB”

Model “SW”

Model “SW” ASME safety valve is our highest capacity safety valve. The unique O-ring seal ensures valve is bubble-tight to within 10% of set pressure. The valve is stamped with “UV” and “NB” symbols. Set pressure tolerance +/-3%.

Construction: All brass construction, stainless steel springs and the O-ring seal available in silicone or fluorocarbon rubber
Max. Temperature: 250ºF

Model “SW”

Model “SB”

Model “SB” ASME safety valve is a high capacity safety valve. Unique O-ring seal ensures valve is bubble-tight to within 10% of set pressure. Set pressure tolerance is +/-3%.

Construction: All brass construction, stainless steel springs and the O-ring seal available in silicon or fluorocarbon rubber
Max. Temperature: 250ºF

Model “SB”

Model “SP”

Model “SP” ASME safety valves are designed for applications where a compact size is required for high flow capacities. For example, a 3-HP compressor may add 10 SCFM of air into the receiver at 125 psi. The “SP” will flow 42 SCFM at 125 psi set pressure, so it will be adequate for this system. Resilient fluorocarbon rubber pad ensures valve is bubble-tight to within 10% of set pressure. The valve is stamped with “UV” and “NB” symbols. Set pressure tolerance is +/-3%.

Construction: All brass with stainless steel springs
Max. Temperature: 250ºF

Model “SP”

Model “SF”

Model “SF” ASME safety valves are designed for systems where large flow capacities are needed. Resilient pad ensures valve is bubble-tight to within 10% of set pressure. The valve is stamped with “UV” and “NB” symbols. Set pressure tolerance is +/- 3%.

Construction: All brass, zinc-plated music wire or stainless steel spring and a rubber seal, offered in silicone or fluorocarbon.
Max. Temperature: 200ºF

Drawings & Documentation:

Model “SF”

Model “SN”

Model “SN” ASME safety valves are designed for high temperature applications where large flow capacities are needed. The valve is stamped with “UV” and “NB” symbols. Set pressure tolerance +/-3%.

Construction: All brass, stainless steel spring and stainless steel ball seating on brass seat
Max. Temperature: 350ºF

Drawings & Documentation:

Model “SN”

Model “ST”

Model “ST” ASME safety valve is our standard safety valve for small air compressor systems and other related applications. While the size is compact, the flow capacities are high. Resilient rubber pad, offered in silicone or fluorocarbon, ensures valve is bubble-tight to within 10% of set pressure. The valve is stamped with “UV” and “NB” symbols. Set pressure tolerance is +/-3%.

Construction: All brass, zinc-plated music wire or stainless steel spring
Max. Temperature: 250ºF

Model “ST”

Model “SA”

Model “SA” ASME safety valves are designed for high temperature applications such as intercoolers and after-coolers, where a compact size is required. The valve is stamped with “UV” and “NB” symbols. Set pressure tolerance is +/-3%.

Construction: All brass, stainless steel spring and stainless steel ball seating on brass seat
Max. Temperature: 400ºF

Model “SA”