Series MP44 Ball Valves
 

Substantially Increase Your Molding Press Productivity With Worcester's MP44 High Performance Ball Valve.

High performance, high cycle, thermal shock proof valves for automated curing and molding operations.

Free Valve Sizing

 
Worcester Controls, working with a leading tire manufacturer to solve chronic production problems, developed the MP44 valve for rubber and plastic molding operations. The criteria for the valve design were: 
  • Capable of handling steam to 300 psi.
  • Capable of handling alternately, steam, hot water, cold water, and hot nitrogen.
  • Have bubble-tight shutoff.
  • Be corrosion resistant to acidity and dirty steam.
  • Operate dependably in a hot environment.
  • Ease of installation and repair.
  • Manual or automatic on-off and modulating control.
  • Computer/PLC compatible. 

 

 
The MP44 valve is all rotary. It's high cycle design meets all criteria and has passed every test and performance evaluation performed by many users. It is available with manual lever handles or pneumatic or electric actuators for automatic on-off control. 

The main design features include a heavy duty, self- adjusting stem seal assembly of Polyfill® and PEEK, Polyfill* and High-per Fill* seats for steam to 470oF, 3-piece body design with screwed or weld end connection (eliminating the need for pipe union), swing-out center section for fast seat and seal replacement, heavy duty bolting to handle extreme thermal shook and stainless steel pipe ends to combat the effects of acid steam.The Series MP44 is a total molding press valve package.

 
Severe Service Options
The standard MP44 will operate in most steam/water environments with ease. If, however, the system contains abrasive materials such as excess boiler compound, pipe scale and dirt, Worcester recommends the optional hand nickel coated ball. Trapped cavity pressure can occur when steam or hot gas is on one side of the valve and cold water is trapped inside the valve. If the water is heated, high pressure will occur with possible seat damage. To prevent this, Worcester recommends an optional (V3) upstream hole in the ball. The hole relieves excess pressure upstream. 

A V48 extended lever handle is available to keep the handle cool and to permit full insulation of this valve.

 

© Pneumatic Control, Inc. 1999/2000