Carbon Steel / Stainless Steel API 600 RF Flange Cast Gate Valve

Short Description:

Gate Valve has rising stem and non-rising stem types with solid wedge and flexible wedge for different mediums. Rising stem gate valves are used when shut-off is required and a quick visual indicator of the open/closed position is needed. The stem of the rising stem gate valve drives the gate to lift and lower together, and the transmission thread on the valve stem is outside the valve body. Therefore, the position of the gate can be intuitively judged according to the moving direction and position of the valve stem, and the transmission thread is lubricated and protected from fluids, but it requires a large installation space. The Wedge of the gate valve includes a Solid taper wedge, flexible wedge, solid wedge, and parallel disk. The body bonnet joint type include Screwed Bonnet, Bolted Bonnet, Welded Bonnet, Pressure-Seal Bonnet. The gate valve end connection includes a flange end (RF, FF, RTJ), Butt-weld end, and socket weld end.

Cast steel gate valve is a gate valve made of metal steel and is mainly used as a regulating and shutoff device in pipeline systems. The opening and closing parts of cast steel gate valves are gate plates, the movement direction of which is perpendicular to the direction of the fluid and can only be fully opened or fully closed. Cast steel gate valves can connect or cut off the flow of pipeline media, change the flow of media, and change the flow direction of media but can’t be adjusted or throttled.

Product Features

(1). Small flow resistance. The medium channel inside the valve body is straight; the medium flows in a straight line, and the flow resistance is small.

(2). Less effort when opening and closing. It is compared with the globe valve, because whether it is open or closed, the direction of movement of the gate is perpendicular to the direction of medium flow.

(3). Large height and long opening and closing time. The opening and closing stroke of the gate is relatively large, and the lifting is carried out by the screw.

(4). Water hammer is not easy to produce. The reason is the long closing time.

(5). The medium can flow in any direction on both sides, and it is easy to install. Both sides of the gate valve channel are symmetrical.

(6). The structural length (the distance between the two connecting end faces of the shell) is small.

(7). It has a simple shape, short structure length, good manufacturing technology, and wide application range.

(8). Compact structure, good valve rigidity, smooth passage, small flow resistance, stainless steel and hard alloy sealing surface, long service life, PTFE packing, reliable sealing, light and flexible operation.

Design & Manufacturing Standards

Basic Design: API 600 & ASME B 16.34

Wall Thickness: ASME B16.34

Face to Face Dimension: ASME B 16.10

Fange End Dimension: ANSI / ASME B 16.5 (2”~24”) ANSI B 16.47 SERIES A /B (OVER 24”)

Butt-Weld End Dimension: ASME B 16.25

Inspection & Testing: API 598

Features:

Bolted Bonnet or Pressure Seal Bonnet

Flexible Wedge

Full Port

Outside Screw and Yoke (OS&Y), Rising Stem