Description
Trunnion Mounted Ball Valve
Two Pieces/Three Pieces Cast Steel Body Ball Valve
Full Bore & Reduced Bore
Anti-static Device
Blow-out Proof Stem
Fire Safe Design
Emergency Sealant Injector
Vent Valve, Drain Valve
Lifting lugs and supporting feets(8" & larger)
Optional Lockable Handle Lever; Gear Box, Electric, Pneumatic & Hydraulic
Standard
Design: ASME B16.34/API 6D
Face to Face: ASME B16.10
End Flange: ASME B 16.5
BW End: ASME B16.25
Test: API 598
Fire Safe Test: API 607/API6FA
Special: NACE MR-01-75
Materials
BODY:
Carbon steel, Stainless steel, Low temperature carbon steel, Duplex, Special Alloys, ...Other materials under request
SOFT SEATS: PTFE, RPTFE, PEEK, DEVLON, NYLON, ...Other materials under request
METAL SEAT: Tungsten Carbide(TC), Stellited, Ni60...Other materials under request.
TRIM: A105+EP, 304, 316, 410, MONEL, ...Other materials under request
Double block and bleed design(DBB)
Double stem sealing.
The ball can maintain pressure sealing of pipeline when it is closed or fully opened.
Shorter upper sleeve reducces bearing load and operation torue
Limit device ensures the accurate opening and closing position of the valve
The vall and stem are separated so as to reduce stem load.
The stem adopts anti-blow-out design.
The sealing surface is inserted into te metal seat by polymer or plastic
The metalbacked self-lubricating PTFE bearing and PTFE thrust washers
Reduce the opening torque and prolong the service life of the valve.
Stem leakage can be prevented through the emergency grease fitting.
Application
Refinery
Chemical
Petrochemical
Power plant
Gas
We welcome all the world customers to contact us for more cooperation.
With our years of technical knowledge and experience,we assure you,
Naibang will be one of your best parters in China.
NO.
Part
Material
1
Body
ASTM A216-WCB A352-LCB A351-CF8,CF8MK,CF3,CF3M,Duplex
2
Seat Spring
Inconel X-7505 SS304 SS316
3
Seat Ring
ASTM A105+ENP A182-F304,F316,F316L,F6,F51
4
Seat
PTFE RPTFE PEEK PPL
5
Ball
ASTM A105+ENP A182-F304,F316,F316L,F6,F51
6
Key
1045 A182-F304,F316,F316L,F304L
7
Sliding Bearing
Stainless Steel+PTFE SS316+PTFE
8
Thrust Washer
PTFE
9
O-ring
NBR Vtion
10
Stud
ASTM 193-B7,B7M,B8,B8M
11
Nut
ASTM 194-2H,2HM,8,8M
12
Yoke
A216-WCB
13
Gland Flange
A216-WCB A3541-CF8
14
Stem
A105+ENP A182-F6,F304,F316,F316L,F304L,17-4PH,F51
15
Packing
PTFE Graphite
16
Screw
ASTM A193-B7,B8
17
Stem Injection
1020+ZN A182-F304,F316,F316L
18
Seat Injection
1020+ZN A182-F304,F316,F316L
19
Vent Valve
1020+ZN A182-F304,F316,F316L
20
Antistatic Spring
Stainless Steel SS316
21
Bonnet
A216-WCB A352-LCB A351-CF8,CF8M,CF3,CF3M,Duplex
22
Body Gasket
PTFE SS304+Graphite SS316+Graphite
23
Trunnion
A105+ENP A182-F6,F304,F316,F316L,F304L,17-4PH,F51
24
Bottom Cover
ASTM A105+ENP A182-F304,F316,F316L
25
Lower Gasket
PTFE
26
Drain Valve
1020+ZN A182-F304,F316,F316L
27
Seat Sealing
Graphite
28
Gand Gasket
SS304+Graphite
29
Bottom Cover Gasket
SS304+Graphite
Complaint
