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Floating Soft Seal Ball Valve

Short Description:

Blowout-proof Stem and Primary Stem Seal
Stem shoulder is integral part of stem, retained internally to prevent stem blowout from pressure in body cavity. Primary stem seal prevents leakage to atmosphere, also serves as low-torque bearing.

Fugitive Emissions Control
Multiple layers of adjustable PTFE Chevron packing rings for non-flammable service, and Soft Carbon braided and die-formed for flammable service.


Product Detail

Product Tags

Performance Specification

Pressure Testing pressure at constant temperature (MPa) Applicable temperature Applicable medium

 

The shell testing High-pressure seal Low-pressure seal
Nominal rating pressure(PN) 1.6 2.4 1.76 0.6  

-29~121℃
or upon the user requirement

Natural gas,liquefied gas,coal gas,oil,water, requirement

2.5 3.75 2.75 0.6
4.0 6.0 4.4 0.6
6.4 9.6 7.04 0.6
10.0 15.0 11.0 0.6
16.0 24.0 17.6 0.6
Pressure classes(Class) 150 2.94 2.16 0.6
300 7.67 5.62 0.6
400 10.2 7.48 0.6
600 15.3 11.23 0.6
900 23.0 16.85 0.6
1500 39.0 28.6 0.6

Technical Specification

Design reference GB API ASME
Design standard GB/T12237 API6D ASME B16.34
Structural length Flanged ends GB/T12221 API6D ASME B16.10
Welded connection GB/T12221
Flanged ends GB/T9113JB/T79 ASME B16.5
Butt-welding ends GB/T12224 ASME B16.25
Test &inspection GB/T13927 JB/T9092 API6D  API598

Note:The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.

Major Parts Material Form (soft Seal)

No. Accessory name Material
GB ASTM
1 Bonnet WCB A216-WCB
2 Nut 45 A194-2H
3 Gasket Graphite+stainless steel B12.10-304/F.G
4 Stud 35CrMoA  A193-B7
5 Body WCB A216-WCB
6 Seat PTFE  PTFE
7 Ball* 25+Cr  A105+Cr
8 Stem** 12Cr13 A276-410
9 Gasket  PTFE  PTFE
10 Packing Graphite Graphite
11 Packing gland WCB A216-WCB
12 Screw nail 35CrMoA A193-B7
13 Locating piece Q235A  A36
14 Ring 65Mn  AIS11566
15 Wrench  KTH350-10 A47-667Gr32510

Note: The material of this part about the anti-sulphur typo valve is GB(12Cr18Ni9+ NIP)ASTM(A182-304+NIP).
The material of this part about the anti-sulphur type valve is GB(12Cr18Ni9)ASTM(A276-321).
Major parts of the valve series and materials of sealing surface differ according to actual working condition and customer's special requirement.


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