Pneumatic systems and components for drilling and service rigs

Reliable Airflow Sales and Service
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Edmonton, Alberta · Sales and service

Pneumatic systems and components for drilling and service rigs

Reliable Airflow supplies the valves and controls that keep rig air systems working, with full technical data and application support for every part we sell.

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  • In-stock air-piloted valves
  • Data sheets with every product
  • Application support for rig air circuits
ULPP-501 air-piloted valve: cast relay valve body with adapter plate, hex coupling and machined aluminum diaphragm actuatorNew · Air-Piloted ValvesULPP-501Shifts on < 5 psig pilot
Featured product

The ULPP-501 moves a full-flow 3-way valve on less than 5 psig of pilot, even at 125 psig line pressure. No booster relay, no amplifier valve.

ULPP-501 air-piloted valve: cast relay valve body with adapter plate, hex coupling and machined aluminum diaphragm actuator
Air-Piloted ValvesIn stock

ULPP-501 Ultra Low Pilot Pressure 3-Way Air-Piloted Valve

The ULPP-501 shifts a full-flow, 3-way poppet valve with a pilot signal of less than 5 psig, even at 125 psig line pressure. A large-area diaphragm actuator mounted directly on the relay valve multiplies a weak or remote pilot signal into the force needed to stroke the poppet, so no booster relay or intermediate pilot valve is required. Flow performance is unchanged from the standard relay body: a full 0.500-inch orifice, straight-line ½ NPTF plumbing and up to 275 scfm.

Pilot pressure to shift
< 5psig
Supply pressure range
0–125psig
Flow at 125 psig
275scfm
Full-flow orifice
0.500in
View product Data sheet PDF · 716 KB
What we do

Sales and service for rig air systems

From the part number to the rig floor: we supply pneumatic components and help keep the systems they go into running.

  • Sales

    Pneumatic components for rig air systems, starting with full-flow air-piloted valves. Part numbers, data sheets and stock status on every product page.

  • Service

    Support for the pneumatic systems on drilling and service rigs, from troubleshooting a circuit to replacing worn components.

  • Application help

    Tell us your pilot signal, supply pressure and flow, and we'll help you choose the right valve and circuit function for the job.

Built for rig air

Where low-pressure pilots matter

Rig air circuits often have to act on weak signals: a sensing line, a long pilot run, an instrument output. The ULPP-501 turns those signals into full-flow switching.

How the ULPP-501 works

Drilling rigs

Air-piloted switching for rig air circuits, with straight-line ½ NPTF plumbing that mounts in any position.

Service rigs

Compact valves that work from weak or remote pilot signals without adding booster relays to the circuit.

Typical applications

  • Low-pressure sensing circuits: tank level, back-pressure and bleed-port sensing
  • Weak, remote or long-line pilot signals
  • Interfacing low-pressure pneumatic logic and instrument signals with high-flow power circuits
About us

Rig pneumatics, from Edmonton

Reliable Airflow Sales and Service is based in Edmonton, Alberta, and supplies pneumatic systems and components for drilling and service rigs.

We focus on the air side of the rig: the valves, controls and circuits that rig equipment depends on. Every product comes with a complete technical data sheet, so you can check pressures, flow, ports and dimensions before you order, and our team can help you select the right part and support it in service.

Contact our teamBrowse products
  • Based in EdmontonAlberta, Canada
  • Drilling and service rigsPneumatic systems and components
  • Sales and serviceSelection help before the sale, support after it
  • Full technical dataSpecifications, dimensions and performance for every part

Need a valve for a weak or low-pressure pilot signal?

Send us your pilot signal, supply pressure and flow requirements. We'll help you pick the right part and circuit and send you a quote.

Request a quote +1 (780) 983-3591