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 |
Zhejiang NaiBang Valve Co., Ltd. is a specialized company devoted into manufacture and sales of valves, the company situates in ou-bei town-the center of China's pumps & valves, with ground area 18800m2, machine workshop, assemble workshop and synthetic finished half - finished warehouse. The company possesses 210 precise equipments, the advanced numeral control machines ensure the flexibility and exchangeability of all the product parts. The company flourishes year by year, and its products have been widely used in lines of domestic large PowerStation configuration, dirty water processing, urban construction, petroleum-chemical, oil extraction, metallurgy, chemical fertilizer, paper production and pharmacy, exported to many countries and regions, gains the users' unanimous praise and confidence.
The company has a modernized staffs of tech research and product development, ISO9001 certificated. And now the company has the capability of manufacturing big series of high temperature and hi-gh pressure power station gate valve, ball valve, globe valve, check valve, butterfly valve, with the strength of API valve, Wafer check valve and forged valve, and the wafer check valve mainly cover wafer single disc lift and swing check valves and wafer double disc swing check valves (H77, H76, H74, H72, H71, H46 and H44). Diameter of valves varies from DN15 to DN2000(1/2'-72' ), working pressure varies from PN1.6MPa to 42 MPa(150lb to 2500lb), and working temperature from -196 Celsius degree to +570 Celsius degree; The main body adopts WCB, WC6, WC9, Cr5Mo, 20Crmo, 12Crmov, 15Crmov, CF3m, CF8m. The company possesses full precise casting equipments, integrated physical and chemical gauges, experimentation equipments and test methods, as well CAD design capability, which ensure products always in high quality.
