DMV-D Dungs Vietnam , DMV-D Dungs Combustion Controls VIetnam
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Dual Modular Safety Shutoff Valves
DMV-D/11 Series
DMV-DLE/11 Series
DMV ISO FLANGED Sales Brochrue • P/N 242955 • Ed. 05/18
Description
The DUNGS Dual Modular Valve (DMV) combines two safety shutoff valves in one compact housing, which can be
wired independently or in parallel. Valve 1 (V1) of the DMV-D and DMV-
DLE series is fast opening and fast closing. Valve 2 (V2) of the DMV-D is fast opening, while V2 of the DMV-DLE is slow-opening for smoother light-off.
Max. flow adjustment on V1 provides variable main flow on both models Internal profiles and compact design optimize flow and provide a low pressure drop.
Directly mounting the following DUNGS accessories creates a compact valve train without additional piping:
- High and low gas pressure switches
- Valve proving system
- 1" NPT Vent line adapter
Application
The DUNGS DMV is recommended for industrial and commercial heating aplications that require two safety shutoff valves. The DMV Dual Modular Valve is suitable for dry natural gas, propane, butane, air and other inert gases. Suitable for up to 0.1% by volume, dry H2S.
A “dry” gas has a dew point lower than +15 °F and its relative humidity is less than 60 %.
Two normally closed safety shutoff valves in one housing; each with the following approvals.
CSA Certified
• ANSI Z21.21
• CSA 6.5
• Marked C/I
• File # 157406
FM Approved
• Class 7411
• File # J.I. 3007653
Commonwealth of Massachusetts
Approved Product
• Approval code G1-1107-35
• Gas Safety Shutoff Valve
EU Gas Appliance Regulation
• EN161
Codes and Standards
This product is intended for instal
-
lations covered by but not limited to NFPA 86, NFPA 37, CSA B149.1, CSA B149.3 and CSA 149.6
DUNGS is an ISO 9001 manufacturing facility.2 ... 6 DMV-D.../11
Two normally closed safety shutoff valves in one housing. V1 and V2 are fast opening, fast closing.
Adjustable max. flow with V2.DMV-DLE.../11
Two normally closed safety shutoff valves in one housing. V1 fast opening, fast closing.
V2 is slow opening, fast closing. Adjustable max. flow and adjustable initial lift with V2.
Specifications
Flange sizes
DN 40 (1 1/2")
50 (2")
65 (2 1/2")
80 (3")
100 (4")
125 (5")
Connection flange as per DIN 2501 Part 1, to fit pre-weld flanges as per DIN 2633
(PN 16) DN 40 to DN 125, ISO 7005 - 1 (PN 16), or ISO 7005 - 2 (PN 16).
Max. operating pressure
7 PSI (500 mbar) CSA, FM, CE (Class A)
Max. body pressure
15 PSI (1000 mbar)
Max. close off pressure
7 PSI (500 mbar) CSA, FM, CE (Class A)
Electrical ratings (+10 % / -15 %)
110 - 120 VAC @ 50 - 60 Hz and 24 VDC. Part numbers listed on page 3.
220 - 240 VAC @ 50 - 60 Hz
Enclosure rating
NEMA Type 12
Electrical connection
DIN-connector with 1/2” NPT conduit adapter (order separately)
Operating time
100 % duty cycle
Closing time
< 1 s
Opening time (to max. flow)
DMV-D.../11
V1 & V2 < 1 s
DMV-DLE.../11
V1 < 1 s; V2 Adjustable to approx. 10 to 20 s at 70 °F
Initial lift adjustment
Adjustable on V2 DLE only; 0 to 70 % of total flow; 0 to 25% of stroke
Max. flow adjustment
Adjustable on V1 <10 to 100 % of total flow; <10 to 100% of stroke
Materials in contact with gas
Housing:
Aluminium, Steel; free of non-ferrous metals
Sealings on valve seats:
NBR-based rubber
Ambient temperature rating
+5 °F to +140 °F (-15 °C to +60 °C)
Installation position
Safety shut off valve from vertically upright to horizontal
Gas strainer (standard)
Installed in the housing upstream V1 (23 mesh)
Position indication
(order separately)
CPI 400 with indication lamps and SPDT interlock switch or
Visual indicator (VI)
Test ports /
Pressure switch mounting ports
G 1/8 ISO 228 ports available on both sides. Each side has two ports upstream
V1, one between V1 and V2, one downstream V2.
G 1/4 ISO 228 on both flanges, upstream of V1, downstream of V2
Valve proving system
VPS 504; mounts directly to either side of DM
