All Products
Smart Valve Positioner
KGP5000 series smart valve positioner is a control device mounted on the pneumatic actuator for control valve
KGP5000 series smart valve positioner is a control device mounted on the pneumatic actuator for control valve, which positions a control valve according to a 4 to 20mA electric input signal from a higher-level control system or a control device.
Position feedback control system which receives feedback signal mapped to the desired valve travel and compares both input signal and feedback signal enables accurate positioning of a control valve.
In addition, it is possible to use this positioner in order to operate various types of pneumatic actuator such as single and double acting, linear and rotary motion actuators.
Furthermore, the positioner utilizing digital techniques performs the functions of advanced PID controller, local user interface using LCD, diagnostics utilizing sensing techniques with potentiometers and internal pressure sensors.
Such features enable an easy installation and calibration, an effective monitoring and an efficient process management relevant to operations and maintenance.
Electro-Pneumatic Positioner
This series is for positioning of pneumatic actuator operated control valves
This series is for positioning of pneumatic actuator oper-ated cotrol valves. Input signal 4 to 20mA DC is changed to air pressure. Accurate positioning is achieved by having valve position feedback from valve stem.
Pneumatic Positioner
Same series as EP800 but this works having pneumatic signal (20 to 100Kpa
Same series as EP800 but this works having pneumatic signal (20 to 100Kpa). Also double acting and single acting types are available.
Current Simulator
HCS400: Current Simulator HCS500: Current/Voltage Simulator
This Series provides simulators that can meet severe requirements of ever changing and progressing instrumentation technology.
Excellent functions and features, starting with high accuracy 1/100 digital output setting, are available with ease of operation.
Lock Valves
Used for shut off, switching, or locking of instrumental air circuit (air relay).
CL420
Used for shut off, switching, or locking of instrumental air circuit (air relay).
CL523
Used for shut off, switching, or locking of instrumental air circuit (air re
APU-XP Automatic Pump Unit
The APU-XP is an economical Pump Automation unit with a compact size and easy installation
Optional Pump Controls are available for all Williams pumps to allow for automatic control of the injection rate 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.