Control Valves
Severe Service Type 1711HD
The 1711HD features a high pressure bar stock body with a union bonnet, with an oversized stem and extra heavy duty guided innervalve for added strength and longevity. The stem packing is designed for tight sealing, long life and easy maintenance. The union bonnet with a graphite gasket provides excellent sealing without having bonnet threads in contact with the process fluid. The multi-spring, field adjustable 35 square-inch, diaphragm actuator can be either ATO or ATC action. Maximum corrosion protection on all nonstainless actuator components are standard.
Features
* Interchangeable trim sets
* Heavy duty union bonnet
* Different trim characteristics available (linear, equal percent, quick open or double taper)
* TFE chevron packing
* Stellite inlaid innervalves
* ANSI Class IV shutoff
* High pressure and temperature rating
* Encapsulated graphite body bonnet gasket
* Dual IEC 534 (NAMUR) accessory mounts
* Adjustable spring preload and up-travel stop
