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VENTIL floating ball valves are designed in accordance with API 608 or ISO17292(BS5351) for ANSI Class ratings 150 to 2500, Nominal sizes from 1/2" to 12". Valves have been designed for use with various combinations of materials such as: Carbon Steel, Low Carbon Steel, Special Alloy, Stainless Steel, Monel, Inconel.
The Ball Valves are of a two piece construction and has a solid full bore ball. Relevant design standards are EN ISO 17292, EN 12516, ASME B16.34 and API 608.
Carbon steel (1.0619/ASTM A 216 WCB) and stainless steel (1.4408/ASTM A351 CF8M) are the materials which form the standard supply. Other materials can be supplied upon request.
The ball-stem connection and the stem-body connection have an anti-static feature, which ensures electrical continuity between those parts.
The valve stem assembly has a blow-out proof construction and a square top connection. A PTFE thrust washer ensures a smooth operation between body and stem.
The Ball Valves are fire-safe certified according to API 607 4th Edition. In the event of fire, a secondary metallic seat prevents leakage through the valve port. A graphoil stem seal and a graphoil spiral-wound body gasket ensures tightness through the stem packing and body joints.
A Direct Mount top-flange according to ISO 5211 is standard for these Ball Valves. This feature makes it possible to mount an actuator without the need of a mounting bracket and drive adapter.
The highly polished solid ball has a pressure relief hole in the stem slot to equalize the pressure in the body cavity. This ensures a tight shutoff and long service life.
The Ball Valves are 100% tight shut-off and are tested in accordance with API598 (ASME) or EN 12266 (DIN).
The flanges are in accordance with EN 1092-1 (DIN version) or ASME B16.5 RF (ASME version). Flange facings have a finish to Ra 3.2 - 6.3.
The DIN Ball Valves are supplied with a face to face dimension in accordance with EN 558-1,27 (DIN 3202-F18) and ASME Valves in accordance with B16.10 long pattern.
The Ball Valves as standard are supplied with a SS202 handlever. All hand-levers are lockable in open or closed position. Where Extra security is required a padlock should be fitted to lock the valve in the open or closed position.
Advantages of this feature are an increased operational safety and less maintenance. In accordance with fire-safe requirements, packing material is made of graphoil. A Viton™ O-ring has been placed under the gland packing.
A flexible seat design provides tight shut-off at high and low pressures. Relief grooves at the outside of the seat protects the seat from being pushed against the ball by media pressure. This feature reduces wear to a minimum and gives favorable torque figures under various process conditions.
Castings have a high quality finish (minimum MSS SP 112, level 2). Carbon steel Ball Valves have a primer and Blue top coat (RAL 5015).
Gearbox for all sizes
Manual override (emergency operator), in combination with a pneumatic actuator
Extended bonnet for low temperature applications
Limit switches for remote open/close indication
Electric actuator
Pneumatic actuator
