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上裝式球閥

上裝式球閥經由頂部閥蓋進行維護，閥座、密封件與球體可在閥門留在管線上的情況下檢查或更換——這正是製程與管線輸送用途中在線可檢視截斷閥的維護優勢。系列涵蓋 DN50 至 DN700，PN16 至 PN250 及 Class 150 至 Class 2500，配備 WCB/LCB 鑄鋼或 CF8/CF8M 不鏽鋼閥體、PTFE 或 RTFE 閥座、RF、RTJ 與對焊端接，並具 API 607 與 API 6FA 防火設計。列出的設計標準涵蓋 API 6D 與 API 608，連同 MSS SP-72、ASME B16.34 與 ISO 17292；測試涵蓋 API 598、API 6D、EN 12266 與 ISO 5208。手輪、齒輪、電動與氣動操作皆出現在產品範圍中。

屬於球閥系列

最後更新： 2026-11

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系列規格

Nominal valve connection size	DN50 to DN700
Pressure class / nominal rating designation	PN16 to PN250, Class 150 to Class 2500
Pressure class / nominal rating designation	PN16 to PN250, Class150 to Class2500
Valve body material	WCB, LCB, CF8, CF8M, CF3, CF3M
Seat material	PTFE, RTFE
Ball material	A105, SS304, SS316, SS304L, SS316L, F6A, F51, F53, F22
Stem material	SS304, SS316
End connection types	RF, RTJ, BW
Operation / closure mode	Handwheel, Gear operated, Electric actuated, Pneumatic actuated
Service temperature range	-196°C to 570°C
Design standards	API 6D, API 608, ASME B16.34, MSS SP-72, BS5351, ISO 17292, EN 13709
Inspection and pressure-test standards	API 598, API 6D, DIN 3230, EN 12266, ISO 5208
Fire Safe Design	API 607, API 6FA
tva design standards	API 6D (top-entry design)
tva api608 compliance	Eccentric half ball variant designed to API 608 and API 6D, DN900 (36 inch), PN16, A216 WCB
tva body forged a105n	ASTM A105N forged carbon steel bodies
tva body wcb	ASTM A216 WCB carbon steel bodies (multiple SKUs)
tva body lcc	ASTM A352 LCC, 24 inch (DN600), Class 900 LB (PN150), RTJ ends
tva body cf8m cryogenic	Cryogenic top-entry variant in ASTM A351 CF8M, 14 inch (DN350), Class 300 LB (PN50), RF ends
tva size range	DN300 (12 inch) to DN700 (28 inch) across collected SKUs
tva pressure class	Class 150 (CL150) to Class 1500 LB (PN250) across collected SKUs
tva operation	Gearbox operated or pneumatic actuated across SKUs
tva end connections	RF flanged, butt-weld (BW) and RTJ ends across SKUs
tva bore options	Full bore and reduced bore (e.g. 10 x 8 inch) configurations
tva structure options	One-piece body; DBB function on selected SKUs
tvb size range	10 to 24 inch across listed SKUs
tvb pressure class	Class 600 to 1500 LB across listed SKUs
tvb body materials	ASTM A216 WCB, ASTM A351 CF8M across listed SKUs
tvb design standards	API 6D
tvb end connections	RF flanged ends across listed SKUs
tvc size range	2 to 36 inch (trunnion series); DN50 to DN900, PN16 to PN420
tvc floating size range	1/2 to 8 inch (DN15 to DN200), PN16 to PN420 (floating series)
tvc pressure class	Class 150 to 2500 LB
tvc design standards	API 6D, ASME B16.34, DIN 3357, BS 5351, EN 13709 (floating series)
tvc trunnion standards	API 6A, API 6D, ASME B16.34, ISO 17292 (trunnion series), soft/metal/composite seating
tvc cast design features	Anti-static design; full and reduced bore (cast steel series); API 6D, ISO 14313, ASME B16.34
tvc forged trunnion	Forged steel trunnion series: ASME B16.34, API 6D, EN 13709, BS 5351; trunnion type with Double Block and Bleed (DBB)
tvc reduced bore rtf	Reduced bore 10 x 8 inch (DN250 x DN200), Class 1500 LB (PN250), RTJ end
packing	Graphite
gasket	PTFE
end to end	ANSI B 16.5, ASME B16.47, EN1092, DIN2543, AS2129