DV1 – Pneumatic Actuated Valves

The DV1 Series Diaphragm Valves are totally free of springs, bellows, packing, o-rings and lubricants in the process wetted area.

Metal-to-metal seals to atmosphere ensure that there is no transport of undesirable elements into the flow stream, and no escaping of process material into the atmosphere.

Elgiloy® diaphragms ensure the utmost in corrosion resistance and extend overall valve life.

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SPECIFICATIONS

2-way on/off control
Metal-to-metal seals to atmosphere to prevent leakage
Wide variety of materials for virtually all applications
No dynamic O-rings, springs, or lubricant in wetted flow path to eliminate sample contamination
Very low internal volume (0.16 cc)*
Manual ¼-plus turn or pneumatic actuation
Pressures from vacuum (50 torr) to 3600 psig (248 bar)**
40μ sintered stainless steel air inlet fi lter extends life of pneumatic actuator

Applications

Analytical Instrumentation
Petrochemical
Pharmaceutical
Chemical

TECHNICAL DATA

Body	316L stainless steel, MONEL® and HASTELLOY® C-276
Seats	PCTFE and PEEK™
Diaphragms	Elgiloy®AMS 5876
Orifice Size	0.110˝ (2.8 mm)
Flow Capacity	0.17 Cv
Valve Internal Volume*	0.16 cc
Leakage	1 × 10-9 cc/sec helium (inboard)

* Internal volume in machined passages of the valve body between mounting surface and sealing diaphragm(s).

Operating Pressures

	Small Diameter	Medium Diameter	Large Diameter
Operating Pressure*	Vacuum (50 torr) to 500 psig	Vacuum (50 torr) to 800 psig	Vacuum (50 torr) to 3600 psig
Proof Pressure	1000 psig	1600 psig	7200 psig
Burst Pressure	2000 psig	3600 psig	14,400 psig