Williams Accessoiries
Optimal Pump Accessories are available for all Williams pumps to allow for automatic control of the injection rate.
Delta Engineering BV in Emmen (the Netherlands) is proud to be the exclusive sales & service partner of Williams chemical metering equipment for the Benelux and Germany.
Williams Instrumentation company Inc. offers additional pump units, control units and control valves for situations where optimal monitoring and control over your process is needed.
For more product information, click on one of the below pictures.

APU-XP Automatic Pump Unit
The APU 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.

PCV-125-AL Pressure Control Valve
Optional Pump Controls are available for all Williams pumps to allow for automatic control of the injection rate

WPC-9001-GP & XP Control Units
Optional Pump Controls are available for all Williams pumps to allow for automatic control of the injection rate
About Williams
Williams Instrument Company, Inc. has a rich history in the natural gas distribution industry. Established in 1965 as a supplier of specialized equipment to the USA natural gas distribution industry, Williams has revolutionized the industry by developing a method for the positive injection of mercaptans, chemicals for introducing odor into natural gas. This innovative approach increased safety in an industry that requires a very high level of safety because the public is a customer. Prior to this method, the gas industry used the inaccurate bypass method of odorizing natural gas.
Today, Williams is the leading supplier of pneumatically-driven metering pumps for the global oil & gas industry. Their metering pumps and related products have become a standard with most of the world’s oil & gas companies, with their products sold in approximately forty countries. Williams’ unique designs offer a combination of reliability and simplicity, providing cost savings for their customers.
Williams’ commitment to quality is demonstrated by their ISO certification and compliance with international standards such as NACE, ISO, API, ATEX, CE, and others. Their manufacturing facilities have been certified to standards such as ISO 9001, ISO 14001, ISO/TS 29001:2010 and OHSA 18001.
In addition to top-quality manufacturing, Williams’ employees observe their quality policy based on six pillars: individual development and welfare, simplified structures, communication and information, compliance with regulations and specifications, accident prevention and risk management, and improved efficiency.
With an outstanding team of highly-competent engineers, technicians, and partners, Williams can provide world-class service and support throughout the pump’s life cycle, from design and manufacturing to spare parts and service.




