Standards

Design and   Manufacture

BS 1873,ASME   B16.34,GB/T12235

Face To Face   Dimension

ASME B16.10,GB/T   12221

Connection   Dimension

ASME B16.5,GB/T   9113,JB/T 79,HG/T 20592,ASME B16.25

Test and   Inspection

API 598,GB/T 13927,GB/T 26480,JB/T 9092

Globe Valve Structural Features

The closure principle of the globe valve is to rely on the pressure of   the stem to make the disc sealing surface and the seat sealing surface tight   and close to prevent the media from circulating.

Globe valve’s face to face length is greater than gate valve’s, and its   fluid resistance is high, when under long-time operation, the sealing is not   as reliable as gate valve’s.

When the globe valve opens, the opening height of the disc reaches 25 %   to 30 % of the nominal diameter of the globe valve, and the flow rate has   reached its maximum, indicating that the globe  valve has reached a fully open position.

Back seating   design: All our gate valves have the back seating design. In most cases, the   carbon steel globe valves is fitted with a renewable back seat. For stainless   steel globe valve, the back seat is machined directly in the bonnet or is   machined after welding. When the globe valve is at fully open position, the   sealing of the back seat can be very reliable.

The sealing surface of the seat is spray welded with hard alloy   specified by the customer, threaded or welded on seat is also optional for   stainless steel gate valve.

ill be rolling bearing fitted between stem nut and stem in order   to minimize the open and close torque of the globe valve

The structure of valve body can be straight-through type, y-globe type   and right angle type.

Main Material

A216-WCB/WCC,   A216-LCB/LCC, A351-CF8/CF8M/CF3/CF3M/CF8C, A105, F304/316, etc.

Pressure Range

CL150～CL2500; PN10～PN320

Size Range

1/2”~24”;   DN15~DN600

Temperature Range

-196℃～+600℃