API 600 Handwheel Operated Gate Valve by choosing different materials, steel gate valve can be used in water, oil, steam, nitric acid, acetic acid, strong oxidizing medium and urea and other media. It has manual, bevel gear drive and electric drive.
All handwheel operated gate valves have backseat threaded in the bonnet, or for the pressure seal valves, welded to the bonnet. Into pressure seal the hard facing is satellite 6 or equivalent.
The stem of API 600 handwheel operated gate valves are forged from one piece and ACME threaded, then mechanized and finally provided with a smooth finishing in order to minimize friction.
In API 600 handwheel operated gate valves, the union of stem and wedge shall be in T form, designed to prevent the stem disengaging itself from the wedge while being in service. This design includes a conical raised surface that presses the seat against the bonnet backseat in the fully open position.
Design Features
Design standard: API 600.
Small flow resistance for fluid
Only a small force is required for opening/closing.
No limitation on the flowing direction of the medium
During opening and closing process, the friction between the disc wedge and the seat is small, so the sealing is reliable ensuring tightness and long service life.
The valve is designed in a back-seat structure.
The valve stem sealing is realized by the collaboration of flexible and woven graphite. ensuring a more reliable tightness.
Optional pressure seal bonnet type.
Optional solid-wedge type
Optional non-rising stem structures
Optional jacket structure
Product Range
Materials
NO.
Part name
Material
19
Grease nipple
Brass
18
Grub screw
Carbon steel
17
Hand wheel nut
Carbon steel
16
Hand wheel
Malleable iron/cast steel/ ductile iron/fabricated steel
15
Yoke nut
Carbon steel/SS
14
Eye bolt and nut
A 193 B7/A194 2H~A193 B8/A194 8
13
Pin
Carbon steel/stainless steel
12
Stem nut
A 439-D2/cu-alloy
11
Gland flange
Carbon steel/equivalent to body material
10
Gland
Stain less steel
09
Back seat
Stain less steel
08
Stem
Stain less steel
07
Seat ring
CS+SS/SS/SS+STL
06
Wedge
Material see body
NO.
Part name
WCB
LCB
WC6
WC9
05
Bolt and nut
A193 Gr B7/A194 Gr 2H
A320 Gr L7/A194 Gr 4
A193 Gr B16/A194 Gr 4/7
A193 Gr B16/A194 Gr 4/7
04
Gland Packing
Graphite
Graphite
Graphite
Graphite
03
Gasket
Spiral wound/
Soft iron
Spiral wound/
Soft iron
Spiral wound/
SS304
Spiral wound/
SS304
02
Bonnet
A216 Gr WCB
A352 Gr LCB
A271 Gr WC6
A271 Gr WC9
01
Body
A216 Gr WCB
A352 Gr LCB
A271 Gr WC6
A271 Gr WC9
NO.
Part name
C5
C12
CF8
CF8M
05
Bolt and nut
A193 Gr B16/A194 Gr 4/7
A193 Gr B16/A194 Gr 4/7
A193 B8/A194 8
A193 B8M/A194 B8
04
Gland Packing
Graphite
Graphite
Graphite
Graphite
03
Gasket
Spiral wound/Soft iron
Spiral wound/Soft iron
Spiral wound/SS304
Spiral wound/SS316
02
Bonnet
A217 Gr C5
A217 Gr C12
A351 Gr CF8
A351 Gr CF8M
01
Body
A217 Gr C5
A217 Gr C12
A351 Gr CF8
A351 Gr CF8M
