globe valve, bb,cs
Design
Datian cast steel globe valves are designed and manufactured to provide maximum service life and dependability.All globe valve are full ported and meet the design
requirements of American Petroleum Institute standard API 600&6D.B SEN 1873 and generally conform to American Society of Mechanical Engineers standard AS ME
B 16.34. Valves are available in a complete range of body/bonnet materials and trims.
Rang of Materials
Standard body/bonnet materials include nine grades of carbon, low alloy and stainless steel for special applications they can be supplied in other grades of alloy and
stainless steel, there'sa full range of trim materials to match any service optional packing and gasket materials are available for a full range of service conditions.
Available Modifications For Cast Globe Valves
Trim changes
End connection modifications
Packing and gasket changes
Operator mounting
Handwheel extensions
Pressure equalizing
By-pass
Customer specified coatings
Weld end bore changes
Oxygen&chlorine cleaning&packaging
[A] Operating
Large hand wheels for easy operation.
Also available with gearing, motor actuators, pneumatic or hydraulic actuators for more difficult services.
[B] Live Load Packing
In services requiring frequent cycling or with high pressure/temperature variations, live loading extends the service life between maintenance periods packing gland adjustments.Belleville spring are employed to provide constant packing gland stress.
[C] OS&Y
Outside screw and yoke.
Cast steel globe valve yoke integral with bonnet for 10&and smaller.
[D] BB
Bolted bonnet welding bonnet and pressure seal bonnet in services requiring frequent cycling or with high pressure/temperature variations.
[E] End Connections
A choice of flanged, RTJ flanged or butt welding end for piping flexi bi ity.
[F] Yoke sleeve
Furnished in aluminum bronze to reduce operating torque.
Most size furnished with ball bearing yoke sleeves.
[G] Lantern Ring And Double Packing Set
Lantern ring with leak-off fitting connection and double packing stack is optionally available for critical services.
[H] Body-to-Bonnet Joint
A male and female joint or tongue and groove joint is used 150Lb to 600Lb valves, ring joint is used in the body to bonnet connection in900Lb&higher rated valves.
[I] Disc
Plug disc is stem guide donal |size.
Disc has a differential angle front these at to provide a line contact for maximum sealing.
The bottom of v-port disc is fu ided by the body seat ring for maximum disc stab ity in th rotting applications, the soft teflon ring is excellent for lower temperature service where tight shutoff required.
[J] Seat Rings
Separate heavyduty, full ported rings for easy maintenance.
Screwed or welded connection into body.
cast steel globe valve
Applicable Standards
● STEEL GLOBE VALVES B SEN 1873/API 600
● STEEL VALVES AS ME B 16.34
● FACE TO FACE, AS ME B 16.10
● END FLANGES.AS ME B 16.5
● BUTT WELDING ENDS, AS ME B 16.25
● INSPECTION AND TEST, API 598
Design description
● STRAIGHT PATTERN BODY DESIGN
● OS&Y, OUTSIDE SCREW AND YOKE
● BB, BOLTED BONNET
● YOKE INTEGRAL WITH BONNET
● RISING STEM AND HANDWHEEL
● LOOSE DISC,CHOICE OF PLUG OR BALL
● RENEWABLE SEAT RING
● BUTT WELDING ENDS, AS ME B 16.25
● INSPECTION AND TEST, API 598
● GEAR FOR 10” & ABOVE
● HORIZONTAL SERVICE
● FLANGED OR BUTT WELDING ENDS
● AVAILABLE WITH BG OPERATOR
standard material specifiactions
Pressure Seal, cast steel globe valve
Applicable Standards
● STEEL GLOBE VALVES, B SEN 13709/API 600
● STEEL VALVES, AS ME B 16.34
● FACE TO FACE, AS ME B 16.10
● END FLANGES AS ME B 16.5
● BUTT WELDING ENDS AS ME B 16.25
● INSPECTION AND TEST, API 598
Design description
● PSB, PRESSURE SEAL BONNET
● OS&Y, OUTSIDE SCREW, AND YOKE
● BB, BOLTED BONNET
● RENEWABLE SEAT RINGS
● RISING STEM AND HANDWHEEL
● FLANGED OR BUTT WELDING ENDS
● AVAILABLE WITH BG OPERATOR
standard material specifiactions
cryogenic globe valve
Applicable Standards
● STEEL GLOBE VALVES, B SEN 13709/API 600
● STEEL VALVES, AS ME B 16.34
● FACE TO FACE, AS ME B 16.10
● END FLANGES.AS ME B 16.5
● BUTT WELDING ENDS, AS ME B 16.25
● INSPECTION AND TEST, API 598
Design description
● STRAIGHT PATTERN BODY DESIGN
● OS&Y, OUTSIDE SCREW, AND YOKE
● BB, BOLTED BONNET
● YOKE INTEGRAL WITH BONNET
● RISING STEM AND HANDWHEEL
● LOOSE DISC, CHOICE PLUG OR BALL
● SEAT RINGS INTEGRAL WITH BODY
● IMPACT HANDWHEEL FOR 10&ABOVE
● HORIZONTAL SERVICE
standard material specifiactions
compact steel globe valve 800Lb
Applicable Standards
● STEEL GLOBE VALVES, API 602
● STEEL VALVES.AS ME B 16.34
● FACE TO FACE, MANUFACTURER STANDARD
● FLANGED AS ME B 16.10
● END FLANGES, AS ME B 16.5
● BUTT WELDING ENDS, AS ME B 16.25
● SOCKET-WELDING ENDS, AS ME B 16.11
● SCREWED ENDS, AS ME B 1.20.1
● INSPECTION AND TEST, API 598
Design description
● OUTSIDE SCREW AND YOKE(OS&Y)
● BOLTED BONNET
● CHOICE OF WB, WELDED BONNET
● LOOSE DISC, CHOICE OF PLUG OR BALL
● SEAT RINGS INTEGRAL WITH BODY
● YOKE INTEGRAL WITH BONNET
● RISING STEM AND HANDWHEEL
● HORIZONTAL SERVICE
● SW, SOCKET-WELDING ENDS
● SC, SCREWED ENDS
● BW, BUTT WELDING ENDS