19154_PE24 VAT | Alldatasheet

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Technical content

CH-9469 Haag, Schweiz Product data sheet Large vacuum gate valve, Series 191, DN 500 (ID 20’’) Created by: HDE Release date: 2014-06-17 1 of 2 Modified by: Release date: 299139EA

Description

Actuator pneumatic, double acting – with position indicator Feedthrough Bellow Technical data Leak rate – Valve body – Valve seat < 1 · 10 -9 mbar ls -1 < 1 · 10 -9 mbar ls -1 Pressure range 1 · 10 -8 mbar to 1 bar (abs) Differential pressure on the plate – in opening direction – in closing direction ≤ 1 bar ≤ 1 bar Differential pressure at opening ≤ 20 mbar Conductance (molecular flow) ISO-F 90000 ls -1 Cycles until first service 20 000 (unheated and un der clean conditions) Temperature (Maximum values: depending on operating conditions and sealing materials) – Valve Body – Actuator – Position indicator ≤ 150 °C ≤ 80 °C ≤ 80 °C Heating and cooling rate 30 °C h -1 Material – Valve Body – Mechanism – Bellows AISI 304 (1.4301) EN AW-6082 (3.2315), AISI 304 (1.4301) AISI 316L (1.4435) or AISI 304L (1.4306) Seal – Bonnet – Gate – Actuator FKM (Viton ® ) FKM (Viton ® ) NBR Mounting position any Volume of pneumatic actuator 2.7 l / 0.095 ft Compressed air min. – max. overpressure 5 – 9 bar / 73 – 131 psi Compressed air connection G ⅛’’ ISO / NPT Actuation time – closing – opening 10 s 10 s Weight 235 kg / 518 lbs

CH-9469 Haag, Schweiz Product data sheet Large vacuum gate valve, Series 191, DN 500 (ID 20’’) Created by: HDE Release date: 2014-06-17 2 of 2 Modified by: Release date: 299139EA Behavior in case of compressed air pressure drop – Valve closed – Valve open – During actuation valve remains closed undefined undefined Behavior in case of power failure – Valve closed – Valve open – During actuation valve remains closed valve closes valve closes Electrical connectio ns Position indicator Wiring diagram Type Micro switch Voltage ≤ 250 V AC ≤ 50 V DC Current max. ≤ 3 A ≤ 1.2 A