Reduced Bore Welded Ball Valve

Reduced Bore Welded Ball Valve

Reduced Bore Welded Ball Valve Reduced diameter / full bore Welded ball valve Q61F-16/25/40 Q367F-16C Q361F-16/25C Reduced diameter type: DN15-200 PN16/PN25 Q61F-16/25 DN15-50 PN40 Q61F-40 DN125-1400 PN16 Q367F-16C DN80-300 PN16/PN25 Q361F-16/25C Full bore type: DN15-125 PN16/PN25 Q61F-16/25...

Product Details

Reduced Bore Welded Ball Valve

Reduced diameter/ full bore Welded ball valve Q61F-16/25/40  Q367F-16C  Q361F-16/25C
Reduced diameter type: DN15-200  PN16/PN25   Q61F-16/25
                    DN15-50    PN40        Q61F-40
                    DN125-1400  PN16       Q367F-16C
                    DN80-300    PN16/PN25  Q361F-16/25C
 Full bore type:       DN15-125   PN16/PN25   Q61F-16/25
                    DN15-50    PN40        Q61F-40
                    DN300-1000  PN16       Q367F-16C
                    DN150-250    PN16/PN25  Q361F-16/25C

Material:  Body:seamless steel tube,20#
         Ball:ss304  Hollow ball(DN15-32),Solid ball(DN40-200)
         Stem:stainless steel,2cr13

  1. Seal :Class A,zero-leaking  

  2. Suitable medium: natural gas,oil

  3. Suitable temperature: max.150ºC

  4. Connection: welded

  5. Driven way:Manual,electrical.

  6. Painting: High-temperature resistant Spray paint or E-poxy.

  7. Packing: plywood case for sea or train. Case size: 1120*1100*1100mm

  8. Test report: Available and signed by the factory.

  9. Departure port: China.

  10. Price terms: FOB,CFR,CIF,EXW all acceptable.

  11. Factory Certification: API 6D,CE, GOST, KS, JIS, ISO, OHSAS,WRAS

  12. Samples: supplied by supplier-free charge!

  13. Payment: T/T,L/C,D/P,OA


  1. Applied fields: Welded ball valve is widely used in various fields, its superior quality and high performance stability cannot be achieved by common cast steel ball valve.

  2. Advantages: All welded ball valve service life is far greater than the steel ball valve, full welded ball valve is widely used in city gas, city heating, petrochemical, shipbuilding, steel, power plants and other types of pipeline, pressure regulating station equipment.

16.Guarantee: It can not only be buried underground to reduce the project cost, but also can keep a long-term reliable operation. Its warranty period is 20 years .

Reduced Bore Welded Ball Valve

Standard Features:

1. Applying welding and flanged end

2. The ball in valve is polished and tested before using.

3. Tight and good sealing with reinforced PTFE(Teflon) seat ring.

4. Preload seat spring protect from leakage of low temperature and decrease the twisting force of operating.

5. We are firmly against the unqualified valve stem.

6. It has floating or fixed structure.

7. The main bearing of stem and the mental band have the capability of self-lubrication, which means it is no need to add

 additional lubricant.


Selected Features (On request):

1. Self-rescue design for valve seat

2. Vertical devices and lengthened stem

3. Specialized design of ends and nominal diameter

4. Anti-static device  

5. Mental to mental sealing of seat; a device of sealant in urgent; double cut and venting; double piston of valve seat; 

the fireproof design with graphite gasket; plastic polymer for seat sealing; relief valve in body;

 Electroless Nickel Plating for ball and stem



Body:WCB ST37, A106-B, STPG 370, A105, ASTM A516-60, A216-WCB ,etc. Stainless Steel 304/316(on request)


Seat:Polymer sealing for seat ring; PTFE, Reinforced PTFE, Viton, Nylon, Peek, etc.

We company have other valves: gate valve, check valve, ball valve, butterfly valve, safety valve, globe valve, plug valve, etc....

Welcome to inquiry! our valves


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