forged bellow gate valve draw

描述

forged bellow gate valve dimension and drawing

Performance advantage
Bellow is the key part of bellow sealed valves.which is welded to both the valve bonnet and valve stem，with automatic roll welding. The melal bellow can keep the stem part 100% no leakage.
Double seal design（bellows packing).Bellow form a metal seal to prevent leakage，and packing can provide seal if the bellow failed.

DESIGN FEATURE
Bolt bonnet(BB)
Welded bonnet(WB)
Outside screw and yoke(OS&Y)

TECHNICAL SPECIFICATION
Design standard:API602；MSS-SP-117
Connection ends:
（1）Socket welded end:ANSI B16.11
（2）Screw end:ANSI B1.20.1
（3）Butt-welded end:ANSI B16.25
（4）Flange end:ANSI B16.5
Face to face dimension:ASME B16.10
Flanged ends:ASME B16.5
Welded ends:ASME B16.25
Test & inspection:API598

APPLICATION
Thermal oil system，steam system，hot and cold water system etc.