GVINCH ball valves are full-way brass valves made of CW614N high-quality brass that matches LS59 brass grade as per GOST 15527-70. Nickel-plated brass fittings are also available.
Basic parts of GVINCH ball valves, i.e. body, ball lock and stem, are hot-pressed. Body and pin are nickel-plated and ball lock is chrome-plated.
» LEAKPROOF WARRANTY
The total leak-proof warranty is guaranteed by 4/PFTE and NBR sealants which are applied in the GVINCH valves and very resistant to wear.
» OPERATION ASSURANCE AND DURABILITY
Based on their design features, the GVINCH ball valves may be applied in the systems involving a wide temperature range, from -10 °C till +120 °C at operating pressure of up to 2.5 MPa. The safe life of the GVINCH ball valves is at least 15 thousand “open-closed” cycles.
» HANDLE FEATURES
The butterfly handle is made of aluminum, with its walls being designed to include a thickness which prevents it from failure. The handle configuration involves a design feature in the form of an extended upper part of its surfaces. Such surface configuration of the valve handle offers a longer moment arm, which decreases significantly the opening and closing efforts needed to apply. The original T-shaped design of the GVINCH ball valve handle has been asserted by a Russian patent.
The lever handle is made of steel involving the DACROMET protection plating, which ensures a 5-year corrosion-proof warranty. The valve handle design features an enlarged length from the pipe connection axis of the valve, involving within the operating area a rigid plastic coating with low thermal conductivity. All these features ensure that a operator’s hand is safe from temperature exposures and potential mechanical damages while making the handle apparently easy to operate.
The valve handles are tightened to the stem by a self-locking nut which is safe from being self-unlocked.
» COUNTERFEIT PROTECTION
The ball valve surfaces bear the following identifications marks:
- four-digit number designation of the production month and year;
Rostest logo that evidences that the products are approved with GOST R Certificate of Compliance;
- nominal pressure rating (PN) and nominal inside diameter (DN);
- GVINCH™ styled logo.
An oval hologram sticker that bears the GVINCH logo trademark with the replicated Gvinch sign is attached to each grey-painted ball valve handle.