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HV angle valve

Product catalog summary

Ordering Information
The document provides ordering details for Series 25 valves, which include angle valves, inline valves, and 3/2-way valves, all equipped with pneumatic actuators and available in double-acting configurations. The valves are categorized by their nominal diameter (DN) and are available with or without position indicators. The ordering numbers are specified for different sizes (16 mm, 25 mm, and 40 mm) and configurations (ISO-KF and ISO-KF "claw").

Main Applications
These valves are designed for pumping and venting high vacuum (HV) systems where maximum conductance is crucial. They are suitable for harsh process environments due to their high resistance to corrosion and fluorine.

Functional Principle
The valves ensure maximum conductance, comparable to a 90° elbow or a straight tube, allowing unobstructed gas flow. The gate performs a tilt-turn-tilt movement to prevent sliding on the valve seat, minimizing contact with process gas.

Features
Key features include:

Body material: Aluminum
Protected gate seal
Resistant to differential pressure
Mechanically locked in open and closed positions
Low particle count

Technical Data
The valves have a leak rate of less than 1 · 10^-9 mbar l/s and operate within a pressure range of 1 · 10^-8 mbar to 3 bar (abs). They can withstand differential pressures of up to 1.2 bar in the opening direction and 3.0 bar in the closing direction. The valves are rated for up to 100,000 cycles before requiring service.

Options and Accessories
Options include different sealing materials, stainless steel versions, and heating cartridges for DN 40. Accessories such as solenoid valves for external mounting and flange connections are available.

Dimensions
Detailed dimensions are provided for each valve series, specifying measurements for various components such as A, B, D, L, M, and Q in both millimeters and inches.

Catalog excerpts

Main applications For pumping and venting of HV systems when maximum conductance is important For harsh process environments (high resistance to corrosion and fluor) Series 25.0 Angle valve Series 25.1 Inline valve Ordering information Series 25.0 Angle valve with pneumatic actuator double acting Ordering numbers ISO-KF with position indicator Series 25.1 Inline valve with pneumatic actuator double acting without position indicator Ordering numbers ISO-KF without position indicator with position indicator Series 25.2 3/2-way valve with pneumatic actuator double acting Ordering numbers ISO-KF «claw» without position indicator with position indicator

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Functional principle Body material: aluminum Parts in contact with vacuum: aluminum Angle, inline and 3/2-way versions Rotary feedthrough Maximum conductance Protected gate seal Resistant against differential pressure Mechanically locked in open and closed position Low particle count 1 Gate seal 2 Bonnet seal 3 Feedthrough seal Valve seat side Function The cylinder-shaped gate performs a tilt-turn-tilt movement. This prevents the gate seal from sliding on the valve seat. Valve closed Tilt movement of gate. Gate seal lifts off from valve seat. Angle valve 90° turn of gate towards the open position....

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HV cylinder valve Technical data Series 25 Leak rate: valve body, valve seat Pressure range Differential pressure on the gate – In opening direction – In closing direction Differential pressure at opening Cycles until first service Temperature – Valve body – Actuator – Position indicator Material – Valve body – Gate, bonnet flange – Shaft – Gate fastening screw, washer A4-80 with Ni-PTFE coating Seal: bonnet, gate, feedthrough rotary feedthrough Mounting position Valve position indication Conductance (molecular flow) ISO-KF «claw» ISO-KF «claw» Valves with position indicator Closing or opening...

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Actuator – One-touch fitting for pneumatic tube Valve – Other sealing materials, e. g. FFKM – Valve DN 40 with flange ISO-KF DN 50 «claw» – Stainless steel version – Heating cartridge for DN 40 Ordering information for options: Ordering No. of valve-X (e. g. 25032-KA14-X, X = one-touch fitting for 4 mm pneumatic tube) Flange ISO-KF «claw» Dimensions Series 25.0 Angle valve with pneumatic actuator DN 16 – 40 (⅝" – 1½") ISO-KF Series 25.1 Inline valve with pneumatic actuator DN 16 – 40 (⅝" – 1½") ISO-KF Series 25.2 3/2-way valve with pneumatic actuator DN 16 – 40 (⅝" – 1½") ISO-KF «claw» mm...

Open the catalog to page 4

HV angle valve

HV angle valve

Catalog excerpts

All VAT Vakuumventile AG catalogs and technical brochures