Detailed Product Description

Design Features

Balancing Valve is a Double Regulating, Control and Shut-off Valve with built-in pressure drop measuring (in line flow measuring) facility. Balancing problems are quite evident in a Multi-User systems, like Central Air Conditioning Plants and in Process Heat Exchangers. The Valve is a combination of a Shut-Off Valve (Gate/Plug/Ball/Butterfly Valve) plus Flow Regulating Valve (globe Valve) and Flow Measuring Station and also a Drain Cock (available in Bronze Valves only). It is not merely a Valve but a system in itself. It provides a scientific basis for Flow Balancing in a system with database. The Valve can be set in pre-regulated flow conditions for Tamper-Proof positioning by a Built-in Locking Device. The Valves are extensively used HVAC systems and other process applications wherever balancing problems exists.

Construction Features

The only combination of desirable features :

• Precise double regulation
• Tamperproof setting
• With handwheel or lockshield
• Low flow-noise emission
• With or without Drain Cocks
• With or without Pressure Test Cocks
• Positive shut-off
• Exceeds IS 778 - 1984
• Economy in installation & Operation.
• Can eliminate separate Flow Measuring Device.
• Threaded in Gun metal Construction upto 3"
• Flanged in Cast iron Construction 3" upto 12"
• PTFE Sealing upto 3" and EPDM for Cast iron Construction.

Why Balancing Valves

User's complaints about unbalanced hot or cold in different parts of the building are avoided. "Human errors" in system design and installation are easily corrected. Once completed a system hardly ever works exactly the way it was desired. Methods of calculation of pressure drop and flow rates are often inaccurate or inaccurately applied. System components like boilers/chillers, circulation pumps, valves etc. do not have to be oversized for possible errors and varying conditions" Just to be on the safe side". A balanced system not needing such "reserves" only needs the actually required flows usually less than a system which is not balanced and can thus save heating/cooling energy. "Last minute decisions" often replace system components selected for system design, by other brands or types, which may have different charateristics. The entire system design may thus become more or less inaccurate. Extension or modification of the system at a later stage will bring the system.

Application

Gun Metal Screwed Ends Valves

Double regulating valves for open or closed hot water or stream central heating installation and chilled water or stream central heating installations and chilled water air-conditioning systems, specially designed for installation with high pump pressure and high/low rates with pH value between 4 and 9.5.

Any process water/stream systems where precise pre-regulated Flow besides pressure drops are called for .it eliminates separate flow measuring system.

Control & Shut-up Flanged Valves

As double regulating, balancing and shut-off valve in open or closed hydronic heating/cooling system and cooling water system in process industry for balanced flow. With special alloys, these valves can be used in Process Plants too for double regulation & flow measurement functions for balanced flow.