WillamsWilliams Pumps revolutionized the natural gas industry in 1965 when it developed the first pneumatically driven metering pump designed specifically for the oil and gas industry. Powered by air or gas, the pneumatic pump injects chemical safely into hazardous or explosion-proof environments making it the right choice for remote locations where safety is the top priority. Williams pumps set a new standard of precision and safety while offering the added benefit of simplicity and value to our customers.

Below is an overview of Williams’ product line. Our experienced Sales Engineers are available to help you determine the best products for your needs. Contact Us.

    Pneumatic Pumps

    • V Series

      Flow rates from .07 to 9.08 GPH
      Maximum pressure 13,100 PSI

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    • Wilroy

      Flow rates from .54 to 8.2 GPH
      Maximum pressure 3,000 PSI

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    • CLD Series

      Flow rates from .75 to 45 GPH
      Maximum pressure 90 PSI

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    • W Series

      Flow rates from 9 to 90 GPH
      Maximum pressure 3,450 PSI

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    Oscillamatic Controllers

    • MKII & MK VII

      Manually operates Williams pneumatic pumps
      Diaphragm design eliminates need for lubrication.
      Uses diaphragms vs “U” cups for reliability.

      Inlet supply pressures:
      MK II: 25 - 65 psi (1.72-4.48 bar)
      MK VII: 50 - 90 psi (3.44-6.20 bar)
      Fully adjustable from 0-45 strokes per minute.
      Anodized aluminum construction.

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    • MK XIIA

      Manually operates Williams pneumatic pumps
      Diaphragm design eliminates need for lubrication.
      Uses diaphragms vs “U” cups for reliability.
      Inlet supply pressures: 35 - 100 psi (2-7 bar)
      Fully adjustable from 0-45 strokes per minute.
      316 stainless steel construction.

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    Pneumatic Relays

    • P03-6S

      Relay PO3-6S
      The Pneumatic Relay is a pilot operated valve designed to provide the higher air or gas flow rates necessary for pneumatic drive cylinders greater than 3 inches. The pneumatic relay is actuated by the pulses produced by the Oscillamatic Controller. A single acting pneumatic relay is used with pumps that have a piston return spring.

    • P04-6S

      Relay PO4-6S
      The Pneumatic Relay is a pilot operated valve designed to provide the higher air or gas flow rates necessary for pneumatic drive cylinders greater than 3 inches. The pneumatic relay is actuated by the pulses produced by the Oscillamatic Controller. A dual acting relay is used with pumps that do not have a piston return spring.

    • P04-8S

      Relays PO4-8S
      The PNEUMATIC RELAY is a pilot operated valve designed to provide the higher air or gas flow rates necessary for PNEUMATIC DRIVE CYLINDER
      diameters greater than 3 inches. The PNEUMATIC RELAY is actuated by the pulses produced by the CONTROLLER. A single acting PNEUMATIC RELAY is used with pumps that have return springs as illustrated to the left. The air or gas pressure is required to return the PISTON-PLUNGER ASSEMBLY on the CRP1000V800.

    Control Units

    • APU-XP

      APU-XP Automatic Pump Unit
      The APU (Automatic Pumping Unit) Series can control the amount of chemical injected by a Williams pump by controlling the stroke rate from 0-45 strokes per minute based on an input signal. The APU includes a N/C 3-way solenoid valve which takes the place of the Oscillamatic Controller and is rated for hazardous areas as well as being weatherproof.
      Williams pumps have the ability to be automated to inject chemical proportional to flow, if a 4-20 mA signal is present, which can save valuable chemical and personnel time adjusting pump stroke rate when the process flow changes.
      The APU can be adjusted to match the amount of chemical required for injection based on a maximum stroke rate of 45 or as little as required by the application. For example, if the application requires the pump to operate at 40 spm @ 20mA, representing 100% of flow for example, then the APU would operate the pump at 20 spm @ 12mA for 50% flow signal and 0 spm at 4mA or 0% of flow.

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    • PCV-125-AL

      PCV-125-AL Pressure Control Valve
      • Provides regulated pressure to operate a variety of Williams pneumatic metering pumps.
      • Economical Pressure Regulator
      • Output Pressures: 0-125 psi (0-862 Kpa)
      • Dual Scale Wika pressure gauge included
      • Built in dryer to eliminate moisture in air/gas supply
      • Maximum Inlet pressure: 250 psi (1724 Kpa)
      • Comparable to the Fisher 67AFR regulator

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    • WPC-9001-GP & XP

      WPC-9001-GP & XP Control Units

      The WPC (Williams Pump Controller) Series can control two pumps, one as the main duty, and the other as the standby pump. By utilizing an optional flow switch mounted on the common discharge line of the pumps, the flow output is monitored and a signal is sent to the WPC if flow is lost. A loss of flow with an input signal greater than 4.07mA will switch from the selected pump to the standby pump and send a signal of loss of flow. Also included, is a feature to operate the pump at a preset rate in the event the input signal is lost the unit will automatically switch over and send a relay output signal of the alarm condition.

      A Normally Closed (N/C) 3-way solenoid valve must be purchased separately and will be operated by the WPC-9001. The Oscillamatic Controller is not required as the unit includes a manual mode than can be locally adjusted from 5-45 spm by a knob located on the front of the unit.

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