Valves and Regulators

Back Pressure Regulator

The WNS Lowery Series W770 Back Pressure Regulator (BPR) offers an affordable solution for maintaining a constant back pressure and an automatic relief of pressure in liquid or gas applications. By maintaining a constant and reliable back pressure on the oil column, this valve ensures gas bubbles do not break out of solution and reduces the paraffin build up in the well. The decrease of gas pockets in the oil also provides a continuous lubrication of the polished rod, extending the life of the stuffing box cone packing, while also enhancing the efficiency of the bottom hole pump.

Features:

  • Lapped Piston and Seat Stainless Steel Trim

  • Optional PolyPak Seal

  • Optional Sand Trim in Tungsten Carbide or Harden Steel

  • Easy access to the internal parts for ease of repair and maintenance

  • Field adjustable with ranges from 10-1500 PSI

Inline Back Pressure Regulator

The WNS Lowery Series W770 Back Pressure Regulator (BPR) maintains a constant back pressure and an automatic relief of pressure in liquid or gas applications. The design allows for easy maintenance and repair by leaving the valve in line. By maintaining a constant and reliable back pressure on the oil column, this valve ensures gas bubbles do not break out of solution and reduces the paraffin build up in the well. The decrease of gas pockets in the oil also provides a continuous lubrication of the polished rod, extending the life of the stuffing box cone packing, while also enhancing the efficiency of the bottom hole pump.

Features:

  • Lapped Piston and Seat Stainless Steel Trim

  • Easy access to the internal parts for ease of repair and maintenance

  • Field adjustable with ranges from 10-1500 PSI

Safety Relief Valves

WNS Lowery’s 2500 Series Safety Relief Valve (SRV) offers a top-of-the-line economical pressure relief valve. The 2500 SRV is engineered to operate in a variety of general-purpose gas and liquid applications. The 2500 SRV is manufactured and tested in accordance with the ASME Boiler and Pressure Vessel Section XIII. Flow capacities are tested and independently certified by the National Board to ensure proper function and relief capacities. All certified valves are stamped with the symbols “UV” and “NB” to signify they were assembled and tested in accordance to ASME code requirements.

Vapor Relief Valves

The WNS Lowery 1500 Series Vapor Relief Valve (VRV) is designed for controlling vapor emissions. The VRV can be used in low pressure applications. It is a non-code relief valve that can be set from 3oz – 12psi. The unit can be preset and have a tamper proof seal installed.

Series 20 Choke Valve

The WNS Lowery Series Adjustable Choke Valve offers an affordable solution for low pressure liquid or gas applications. The 2” NPT Forge Tee Body is available in 2M and 3M pressure rating. The Tungsten Carbide Trim is ideal for applications with highly abrasive media.

Features:

  • Low pressure

  • Wide range of applications

  • Economical and cost efficient

  • Available with Tungsten Carbide Trim

  • 3/4" & 1” trim options

  • Field Adjustable