When.com Web Search

Search results

1. Results From The WOW.Com Content Network

2. Automatic balancing valve - Wikipedia

   en.wikipedia.org/wiki/Automatic_balancing_valve

   A diaphragm within the valve keeps the outlet pressure constant, and this delivers a constant flow to the terminal. The added advantage of pressure independent control valves is that, when fitted with an actuator, they replace the manual balancing valve and motorized control valve with a single valve, thus reducing installation cost. [citation ...

3. Siebe plc - Wikipedia

   en.wikipedia.org/wiki/Siebe_plc

   Siebe plc became the name of the new conglomerate formed when Siebe Gorman began taking over other firms in the early 1970s, to distinguish it from Siebe Gorman's original breathing apparatus and diving gear core business. Siebe plc was once one of the United Kingdom's largest engineering businesses and was a constituent of the FTSE 100 Index.

4. Invensys - Wikipedia

   en.wikipedia.org/wiki/Invensys

   Invensys was formed in 1999 through the merger of BTR plc and Siebe plc. [4] It was originally founded on 1 April 1920 as Siebe Gorman & Company Ltd and continued through various name changes registered at Companies House from that date. Invensys lines of business were grouped into four segments: Software, Industrial Automation, Energy Controls ...

5. Control valve - Wikipedia

   en.wikipedia.org/wiki/Control_valve

   A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. [1] This enables the direct control of flow rate and the consequential control of process quantities such as pressure, temperature, and liquid level.

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. HVAC control system - Wikipedia

   en.wikipedia.org/wiki/HVAC_control_system

   HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

8. Isolation valve - Wikipedia

   en.wikipedia.org/wiki/Isolation_valve

   An isolation valve is a valve in a fluid handling system that stops the flow of process media to a given location, usually for maintenance or safety purposes. [1] They can also be used to provide flow logic (selecting one flow path versus another), and to connect external equipment to a system. [ 2 ]

9. Zone valve - Wikipedia

   en.wikipedia.org/wiki/Zone_valve

   A zone valve is a specific type of valve used to control the flow of water or steam in a hydronic heating or cooling system. In the interest of improving efficiency and occupant comfort, such systems are commonly divided up into multiple zones. [ 1 ]