膜片閥

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更新時(shí)間：	2013-07-16
產(chǎn)品型號：	DV82系列
產(chǎn)品報(bào)價(jià)：
產(chǎn)品特點(diǎn)：	DV82 Series Diaphragm Valve

膜片閥的詳細(xì)資料：

DV82 Series Diaphragm Valve

Suitable for high purity applications
316L Stainless Steel enhances weldability and resistance to corrosion
Both manual and pneumatic actuation are available
Face seal fittings （FSR）, compression tube fittings or butt weld connections
Internal spring
Metal-to-metal diaphragm seals
High-cycle life
100% Helium-leak tested

Materials of Construction

Wetted
Body		316L stainless steel
Seat		PCTFE, Vespel^®*
Diaphragm		Elgiloy^®
Non-wetted
Nut		316 stainless steel
Knob		ABS
Operating Conditions
Maximum operating pressure:		3500 psig（240 barg）: Pneumatic and manual actuation
Minimum operating pressure:		vacuum
Temperature		-40°F to 150°F （-40°C to 65 °C）
Pneumatic Actuator:
Operating Pressure		70-125psig
Inlet Connection		1/8" NPT（Female）
Normally		Closed
Functional Performance
Flow Capacity		Cv=0.16
Maximum Leak Rate:
Inboard Leakage		1 x 10^-9 atm cc/sec He
Outboard Leakage		1 x 10^-9 atm cc/sec He
Across Seat Leakage		4 x 10^-9 atm cc/sec He
Proof Pressure		150% of maximum rated pressure
Burst Pressure		400% of maximum rated pressure
Surface Finish
Standard Ra （BA）		15-20µin.
Internal Volume
0.8 cc

* Standard Material
** Vespel^® seat is recommended for Nitrous Oxide （N2O） service .

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