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VAT Vakuumventile AG
Rectangular valve FlapVAT

Rectangular valve FlapVAT

Product catalog summary

Main Applications: The document outlines the use of valves in photovoltaic (PV) and large coating systems, specifically the Series 06.8. These valves are equipped with pneumatic actuators and position indicators, suitable for various opening sizes ranging from 50 × 500 mm to 100 × 3000 mm.

Specifications: The valve features a double-acting pneumatic actuator with a position indicator. The leak rate for the valve body is less than 1 × 10^-7 mbar Is^-1 and for the valve seat is less than 1 × 10^-5 mbar Is^-1. The differential pressure on the gate is ≤ 1 bar in the closing direction and ≤ 10 mbar (optional 1 bar) in the opening direction. The differential pressure at opening is ≤ 5 mbar. The valve can perform up to 1 million cycles until the first service, with a closing or opening time of ≤ 1.2 seconds for size 80 × 1500 mm.

Materials and Temperature: The valve body and gate are made from aluminum EN AW-5083 or stainless steel AISI 304, with actuator shafts made from SAE 1045, nitro carburized and oxidized. The maximum temperature for the valve body and gate is 120°C for aluminum and 200°C for stainless steel, while the actuator can withstand up to 80°C.

Mounting and Options: The valve can be mounted with the actuator up, down, or lateral. It includes a position indicator with a voltage of 10 – 30 V DC PNP (NPN optional). Options include solenoids for impulse actuation, alternative sealing materials, water cooling, pneumatic locking, and resistance against 1 bar differential pressure in the opening direction.

Functional Principle and Features: The valve is designed for harsh process conditions with a modular design allowing for a wide range of opening sizes. It is mechanically locked in the closed position. The document notes that maximum values depend on operating conditions and sealing materials, and that the cycle count until the first service is reduced to 0.5 million when mounted with the actuator lateral.

Catalog excerpts

Large transfer valve FlapVAT Series 06.8 Main applications PV and large coating systems Ordering information Valve with pneumatic actuator double acting with position indicator Opening sizes Ordering numbers Valve seat side Actuators lateral

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Functional principle Body material: aluminum or stainless steel Mechanism designed for harsh process conditions Modular design: allows to realize a wide range of opening sizes Mechanically locked in closed position 1 Bonnet flange 2 Gate seal 3 Gate 4 Valve body Valve seat side Differential pressure on the gate – In closing direction – In opening direction Differential pressure at opening Further data on request Leak rate 1) – Valve body – Valve seat Cycles until first service Closing or opening time 1) Temperature 1) – Valve body, gate - aluminum - stainless steel – Actuator In the mounting...

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Rectangular valve FlapVAT

Rectangular valve FlapVAT

Catalog excerpts

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