*mydirectindustry

Catalogs
VAT Vakuumventile AG
Large gate valves (V)

Large gate valves (V)

Product catalog summary

Overview: The document provides detailed specifications and features of the Series 19 large gate valves, including both HV (High Vacuum) and UHV (Ultra High Vacuum) models. These valves are designed for low shock, damped opening and closing, and can handle differential pressure on either side. They are used in various applications, including large research, industrial systems, and space simulation.

Specifications:

Body Material: Stainless steel with pneumatic actuator, double acting, available with or without position indicator and solenoid.
Sealing Materials: Gate and bonnet seals made of FKM (VITON).
Pressure Range: HV gate valve operates from 1 · 10-7 mbar to 1 bar (abs), UHV gate valve from 1 · 10-9 mbar to 1 bar (abs).
Differential Pressure: Up to 1 bar in either direction, with specific limits for opening based on DN size.
Temperature Limits: Valve body up to 150°C, pneumatic actuator up to 50°C, solenoid up to 50°C, and position indicator up to 80°C.
Material Composition: Valve body made of AISI 304, bellows (UHV only) of AISI 316L or AISI 304L, and other components of EN AW-6060, AISI 304, Nimonic, AISI 420, and AISI 301.

Performance and Maintenance:

Leak Rate: Less than 1 · 10-9 mbar Is-1 for body and valve seat.
Service Cycles: Varies by DN size, with up to 100,000 cycles for smaller sizes and 10,000 for larger sizes.
Heating and Cooling Rates: 30°C h-1 for DN 400-630 and 5°C h-1 for DN 800-1250.

Options and Accessories:

Actuator Options: Solenoid for impulse actuation, non-return valve, mechanical position indicator, lockable actuator, and various voltage options.
Valve Options: Standard and customer-specified flanges, water-cooled flanges, metal static seals, ports for roughing, venting, or gauges, bake-out equipment, and protective features.
Accessories: Seal kits and blank flanges for testing and bake-out.

Dimensions and Ordering Information: The document includes detailed dimensional data for various DN sizes, ranging from 400 mm (16 inches) to 1250 mm (50 inches), with specific ordering numbers for each configuration. It also provides information on mounting positions and connection requirements.

Applications and References: The valves are proven in large systems worldwide, with references available upon request. Special projects and acceptance tests can be conducted based on customer requirements.

Catalog excerpts

Large gate valves Low shock, damped opening and closing Differential pressure possible on either side Proven design, used in large research and industrial systems as well as in space simulation Body material stainless steel Series 190 HV gate valve Pneumatic actuator double acting with position indicator with solenoid Series 192 UHV gate valve Ordering numbers (specify control voltage) Series 190 HV gate valve ISO-F Series 192 UHV gate valve ISO-F without position indicator, without solenoid: 19 . . . - . E14 with position indicator, without solenoid: 19 . . . - . E24 Other sizes Projects for special versions Our product groups are experienced in developing special requirements concerning material, stability, heaters, etc. On customer request, we can perform special test programs, bakeout and provision of customer specific hand-over quality documentation. Acceptance tests are conducted for large special projects, and are prepared by our engineers. Large VAT gate valves have proved their reliability in various large systems all over the world. Reference list available on request.

Open the catalog to page 1

Sealing materials Gate: Feedthrough HV gate valve: shaft feedthrough UHV gate valve: bellows 1 valve gate 2 counter plate 3 flat springs 4 ball pairs 5 detents 6 gate seal 7 spring stop valve seat side Proved VATLOCK configuration (see glossary) Assembly in cleanroom according to UHV quality standards DN 900 - 1250 HV with split body: hence extremely short height for dismantling and convenient maintenance (see illustration below) • Move valve gate to the position «open» • Unscrew actuator part of body and lift it off from flange part (flange part remains in the system) • Move valve gate to the...

Open the catalog to page 2

Large gate valves Technical data Series 19 Leak rate: body, valve seat Pressure range - HV gate valve - UHV gate valve Differential pressure on the gate Differential pressure at opening - DN 400 - 500 - DN 630 - 1250 Cycles until first service - DN 400 - 500 HV 100 000 - DN 630 HV / 400 - 630 UHV 20 000 - DN 800 - 1250 HV + UHV 10 000 Heating and cooling rate - 400 - 630 - 800 - 1250 compressed air pressure min. - max. overpressure Position indicator: contact rating - Voltage - Current - Power molecular flow conductance actuator horizontal or vertical («actuator down» on request) Mounting...

Open the catalog to page 3

Actuator: - Solenoid for impulse actuation: Power failure: last valve position is maintained Compressed air failure: valve closed - valve remains closed valve open - valve position is undefined - Solenoid for impulse actuation and non-return valve: valve position is undefined at power failure and compressed air failure - Solenoid separate, for external mounting - Solenoid for 12, 48 V DC 24, 48, 100, 115, 200, 220 V / 50 Hz 24, 100, 115, 200, 220 V / 60 Hz - Mechanical position indicator (Series 190) - Lockable actuator Valve: - All standard flanges available (ISO, ASA, ASA-LP, JIS) - Customer...

Open the catalog to page 4

Large gate valves Main dimensions HV valve (with shaft feedthrough) DN 400 - 800 (16" - 32") valve seat side for attachment required for dismantling leak detection hole compressed air connection electrical connection HV valve (with shaft feedthrough) DN 900 - 1250 (36" - 50")

Open the catalog to page 5

Main dimensions UHV valve (with bellows feedthrough) DN 400 - 800 (16" - 32") valve seat side for attachment required for dismantling leak detection hole compressed air connection electrical connection UHV valve (with bellows feedthrough) DN 1000 - 1250 (40" - 50")

Open the catalog to page 6

Large gate valves (V)

Large gate valves (V)

Catalog excerpts

All VAT Vakuumventile AG catalogs and technical brochures