Mainly including four main types: 12 Inch gate valve, motorized gate valve, socket weld gate valve and vacuum gate valve, the API 6D standard double disc stainless steel resilient wedge gate valve with electric actuator consists of two parts: the electric actuator and the valve body. The valve disc and the valve stem are connected by a T-shaped head, and the valve stem nut is fixed to the valve yoke by two thrust bearings, and is connected to the electric actuator through the sleeve coupling. These products have undergone rigorous sealing tests to ensure safe operation of the unit.
|Others||OS & Y, Rising Stem, Bolted Bonnet, Flexible Wedge (2” Solid), Extended Bonnet for Cryogenic Services, By Pass On Request|
ASME B16.34/API 600
Face to Face
Main parts and materials:
A216 WCB+ A182 F6
A570 Gr. A
A570 Gr. A
Hand wheel or gear box is usually used for gate valve actuation .chain wheel and electric actuator can be also used for gate valve actuator if being requested by the customers .
Back Seating Design
All our gate valves have the back seating design.In most cases,the carbon steel gate valve is fitted with a renewable back seat.For stainless steel gate valve,the back seat is machined directly in the bonnet or is machined after welding .When the gate valve is at fully open position ,the sealing of the back seat can be very reliable .However ,as per the requirement of API600,it is not advisable to add or change packing by the mean of back seating when the valve is pressure containing.
The stem is of integral forged design .The minimum diameter of the stem shall per the standard requirement .The connection of the stem and disc is T type .The strength of the connecting area is bigger than that of the T threaded part of the stem .The strength test if that area conforms to API 591.
2 Inch gate valve, motorized gate valve, socket weld gate valve and vacuum gate valve are mainly used in systems such as power plant extraction systems, water supply systems, open and close water systems and other systems require high sealing.