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Cryogenic Top-Entry Ball Valve
The Cryogenic Top-Entry Ball Valve, as an important on/off component in the cryogenic pipeline system, is an important part of the petrochemical industry, air separation, and natural gas industry.
- category :Cryogenic Ball Valves
- Email :teji@teji-valve.com
- Phone :+86-577-67354000
- fax :+86-577-67354001
The Cryogenic Top-Entry Ball Valve, as an important on/off component in the cryogenic pipeline system, is an important part of the petrochemical industry, air separation, and natural gas industry. The structure of Top-Entry Ball Valve can realize online maintenance, and is suitable for low-temperature liquid or gas media, such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), liquid hydrogen, liquid oxygen, ethylene and other conditions. Compared with the Side-Entry ball valve under the same conditions, Top-Entry Ball Valve is more convenient to maintain with a wider scope of application, and is more common.
SPECIFICATIONS：
1. Valve Size : 1/2” ~ 20” (Cast Steel) / 1/2” ~ 36” (Forged)
2. Applicable Rating : ASME 150# ~ 1500#
3. Temperature : Down to -196 ℃
4. Code & Standard : API, BS, ASME, ASTM
Designed by BS5351, ASME B16.34, and ASME B16.25/16.5
5. Shell & Seat Leak Test : API 598 & BS6364
6. Constructions：
End Connection : Socket-Welded, Butt-Welded or Flanged Type
Long Extended Bonnet
Trunnion Ball,Floating Ball, Full Bore / Reduce Bore
Fire Safety Construction(Certified by TÜV)
Manual or Motor Operated (Pneumatic, Electric, or Hydraulic)
Uni- / Bi-Direction, Double Block & Bleed Design
FEATURE:
1. The structure of Top-Entry Ball Valve enables online valve maintenance.
2. Extended bonnet design.
3.Design of live-loaded seal structure of valve stem.
4.Special design of valve seat assembly, reliable sealing, detachable valve seat structure.
5.Valve cavity overpressure relief design.
6.Stem anti-settling design.
7.The extended bonnet has a drip tray design, which can effectively prevent condensate from flowing into the insulation layer.
8.Fire-resistant, anti-static, anti-stem ejection function.
MATERIALS FOR MAIN PARTS:
|
PARTS NAME |
MATERIAL |
|
BODY |
Forged Steel - ASTM A182-F304(L)/F316(L) / Cast Steel - ASTM A351-CF8(M)/CF3(M) |
|
BONNET |
Forged Steel - ASTM A182-F304(L)/F316(L) / Cast Steel - ASTM A351-CF8(M)/CF3(M) |
|
SEAT |
PCTFE / GRAPHITE |
|
BALL |
ASTM A276-304(L) / 316(L)-(H.F) |
|
STEM |
ASTM A276-304(L) / 316(L) |
|
GASKET |
SPIRAL WOUND GRAPHITE |
|
GLAND PACKING |
GRAPHITE |
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