One Piece Stainless Steel Female Thread Ball Valve

Split two-piece or three-piece screwed ball valves rely on joint bolts to maintain sealing; inside narrow pipeline pits and compact miniature process units, long-term vibration will easily loosen gaskets at split joints and trigger leakage, while single-piece integrally formed valve bodies, free of any split parting seams, eliminate leakage risks of split structures fundamentally. Fitted with built-in explosion-proof limited stem and full straight-through flow bore, it requires no flow diameter reduction to simplify cavity machining, delivering far lower fluid resistance than reduced-port economy screwed ball valves and bringing noticeable pump energy savings for compressed air, clean water and light fuel oil delivery pipelines.

All machining, dimension calibration and factory air tightness testing of this single-piece female thread ball valve comply with dual industrial ball valve design standards GB/T12224 and ANSI B16.34, while finished product tightness inspection strictly follows universal valve test codes GB/T13927 and API598. Full compliance documents can be handed directly to overseas engineering buyers for project acceptance filing and customs record. Its maximum nominal pressure is fixed at 1.6MPa, with stable regular operating range set at 0.6~0.8MPa; a wide temperature window ranging from -40℃ chilled water lines to 180℃ heat transfer oil pipelines covers most civil and light industrial general fluid service conditions.

Internal female threads support customization of mainstream global pipe thread norms, including six universal standards: BSP/BSPT, NPT, DIN, JIS, RC and G; DIN2999 thread specifications are also available on request. It can connect directly to national standard metal pipelines without transition fittings, greatly cutting piping installation cost for compact skid-mounted equipment and HVAC units. The complete size spectrum covers all common small bores from 1/4" to 4" (DN6~DN100), with fixed standardized figures for overall length L, flow bore d, total valve height H and full hand lever span W per size, removing repeated non-standard dimension checks for mass piping design.

Three graded material options including WCB carbon steel, CF8(SS304) and CF8M(SS316) are offered for valve body and bonnet; SS304 fits regular water, gas and non-corrosive oil, while SS316 stainless steel serves pipelines carrying mild acid, alkali and salt-containing media. Matching stainless steel grades are adopted for ball, stem and anti-static assembly, and PTFE/RPTFE fluoroplastic is uniformly used for seats, stem packing and sealing gaskets, featuring low friction, high temperature resistance and anti-medium-adhesion core performance. A built-in anti-static conductive component on the stem rapidly dissipates static charge generated by fluid friction, eliminating ignition risks on gas and oil pipelines, a feature highly valued by natural gas plant contractors across the middle east.

Dimensional Drawing Markings & Assembly Structure Features
The sectional drawing clearly illustrates the single-piece split-free valve body construction, with all dimension markings measured in millimeters: L stands for total length between two female thread ends, d refers to full-port inner flow bore diameter, H means total vertical height of the complete valve assembly, W is the full extended length of blue coated operating lever. A limiting explosion-proof shoulder is integrated at the bottom of valve stem to prevent stem ejection and medium spray leakage under high pressure shock. Multi-layer stacked PTFE packing fills the independent stuffing box, preloaded evenly by gland cover, avoiding rapid relaxation and failure during hot-cold cycling without frequent on-site gland tightening maintenance.

Domestic water supply, small air compressor compressed air pipelines, HVAC hot & cold circulating water lines and light lube oil delivery units form core application scenarios of this single-piece screwed ball valve. Benefiting from compact integral construction, low-cost stainless steel material and multi-norm thread compatibility, it acts as standard isolation shut-off fitting for light industrial equipment, heating and plumbing projects. Its explosion-proof anti-static design also fits low-pressure delivery branch lines of LPG and municipal natural gas, delivering far longer service life than low-cost cast iron screwed valves on clean fluid pipelines without strong corrosives.