The Karl Dungs 224844 DMV-D 703/602 is a UL,CSA and FM listed and approved Dual Modular Valve.  The body consists of two (2) normally closed safety shutoff valves that are both fast opening and fast closing that makes it an ecxellent choice for industrial and commercial heat processing and combustion applications operting with natuaral gas, propane, butaine, inert gases and air. 

The DMV-D 703/602 dual valves allow for adjustable maximum flow with valve 2 suitable for upto 5 PSI (360 mbar) maximum operting pressure.  Flange and NPT pipe sizes available for the DMV-D 703/602 are: 1", 1-1/4", 1-1/2", and 2".  Based on the body size, the flow (CFH) of natural gas changes.  The table below represents these corresponding flow, accounting for a 1" pressure drop.

 

Flow (CFH) Natural Gas 0.65 Specific Gravity at 60°F with 1" W.C. Pressure Drop @ 1.25 PSI Inlet Pressure
DMV 703	1"	1-1/4"	1-1/2"	2"
	1230	1532	1698	1795

For this model a 1",1-1/4", 1-1/2", or 2" flange size can be used and must be ordered separately.  The following table provides specific model numbers for pipe size flange accesories.

 

Valve Description	Flange Size	NPT Flange Part #	Rp Flange Part #	O-Ring & Bolt Kit Part #	FRI Mounting Kit Part #	Integral Filter & Strainer Replacement
DMV 703/602	1”	222-369	222-343	224-094	219-968	230-441
	1 1/4”	222-370	222-344	224-094	219-968	230-441
	1 1/2”	222-003	221-884	224-094	219-968	230-441
	2”	221-997	221-926	224-094	219-968	230-441

One of the amazing features of the 224-844 Dungs DMV-D 703/602 is the compact design that allows you to save money and time during building!  You can direct mount valve train compnonts to the valve body without the need for additional piping.  These components include the Dungs FRI Pressure Regulator, GMH, GAO, and GML Dungs Gas Pressure Switches (both High Gas and Low Gas), Dungs VPS 504 Valve Proving System, Dungs Vent Line Adpators, CPI 400 Valve Position Indication Switch, Gas Filters and more.