William

The Williams Instrument Company was founded by Mr. James F. Williams in 1965. Since its beginning, the Company has been recognized as one of the leading manufacturers of pneumatic metering pumps and chemical injection systems. The Company has recently expanded its market to include electric metering pumps to meet additional customers' needs. The Company's reputation, built on quality, accuracy, reliability and safety, has created high standards in all industries.

From a modern manufacturing facility located in Valencia, California, Williams supplied products to customers worldwide through a network of authorized distributors and regional sales offices. The Williams commitment to providing the highest quality products continues to be supported by marketing and engineering staff educated to servicing the customer's requirements. The Williams organization welcomes your inquiries and invites you to discuss your specific applications.

LD Low-Pressure Diaphragm

LD Low-Pressure Diaphragm

  • Simple Design
  • Easy to Maintain
  • Intrinsic Safety of Pneumatic Operation
  • Stroke Length and Stroke Rate Adjustment
  • High Flow Turndown
  • Corrosion Resistant Construction
V Dual Seal Plunger

V Dual Seal Plunger

  • PNEUMATIC OPERATION
  • HIGH FLOW TURNDOWN
  • INTRINSICALLY SAFE
  • GREATER RELIABILITY
  • CORROSION RESISTANT
  • SIMPLE MAINTENANCE
W High Flow, High Pressure Plunger

W High Flow, High Pressure Plunger

  • “Pneumatic Operation”
  • Intrinsically Safe
  • Easy To Install
  • Simple To Maintain
  • Flow Rates From 9 to 90 GPH With Discharge Pressures To 3450 PSIG Flow Rates From 9 to 90 GPH 
WILROY

WILROY

  • 316 SS exposure
  • Integral relief valve
  • Low maintenance robust design
  • Two sizes in one housing — Field reconfigurable
  • Compact size for ease of installation
  • Gylon® diaphragm for diverse compatibility
X Dual Seal Plunger
X Dual Seal Plunger
Pneumatic Controllers
Pneumatic Controllers
Automatic Processing Unit
Automatic Processing Unit
Electronic Pump Controller
Electronic Pump Controller