Two Piece Stainless Steel Female Thread Ball Valve With Locking Buckle

Confined by sealed integral cavity, one-piece screwed ball valves demand full valve replacement once internal balls or seats wear and leak; two-piece female thread ball valves with locking buckle, by contrast, adopt mid-body buckle clamping for rapid disassembly, enabling maintenance and replacement of internal sealing components without removing the whole valve from pipelines. For air compressors and small chemical circulation lines requiring frequent service, labor hours for overhaul can be drastically cut. An integrated locking tab limit mechanism is mounted above the stem; after operators rotate the lever to fully open or fully closed positions, shifting the lock tab secures the handle angle to avoid accidental valve actuation triggered by equipment vibration. Such safety construction is frequently specified by overseas compact skid buyers for pipelines carrying flammable gas and fuel oils.

Forged body shaping, thread cutting and PTFE sealing assembly all follow domestic steel screwed ball valve code GB/T12224 alongside American industrial ball valve standard ANSI B16.34, with fully aligned dimensional tolerances and wall thickness thresholds under both systems. Factory air tightness and hydrostatic strength tests adhere rigidly to universal valve acceptance codes GB/T13927 and API598. Complete material test certificates, pressure test reports and dimension drawings can be submitted directly for cross-border project tendering and customs clearance filing. Its maximum nominal pressure is rated at 1.6MPa, with steady routine operation ranging from 0.6 to 0.8MPa, while the broad temperature window from -40℃ to 180℃ accommodates widely varying fluids including chilled water, high-temperature heat transfer oil and liquefied gas.

Internal female threads support customization of mainstream global pipe thread norms, covering six universal systems: British BSP/BSPT, American NPT, German DIN, Japanese JIS, RC and G. Direct connection to international industrial pipelines is achieved without transition adapters, significantly cutting piping material costs for HVAC, water purification and mini oil & gas units. The full size spectrum spans all common bore sizes NPS1/4" to 4" (DN6~DN100), with standardized fixed figures for body overall length L, full-port flow bore d, vertical valve total height H and full extended lever span W per size, eliminating repeated non-standard dimension checks for mass skid piping design.

Three tiered material grades including WCB carbon steel, CF8(SS304) and CF8M(SS316L) are supplied for valve body and bonnet. WCB carbon steel suits low-cost projects with ambient clean water and dry compressed air; SS304 fits regular non-corrosive water and oil media; SS316 is reserved for pipelines carrying saltwater and mild acid-base corrosive fluids. Matching stainless steel grades are adopted for ball and stem, while modified RPTFE serves uniformly for seats, middle gaskets and stem sealing, delivering low friction, anti-medium-adhesion performance and strong resistance to hardening leakage during hot-cold cycling. Built-in anti-static conductive hardware rapidly dissipates static electricity generated by fluid friction to eliminate ignition hazards on gas pipelines, many small LPG plant clients in southeast asia prioritize this anti-static feature.

All units on dimension charts are metric millimeters: L stands for total length between two female thread ends of split body, d refers to unrestricted full-port inner flow bore diameter, H means total vertical height of fully assembled valve, W is the full extended length of locking lever fitted with blue plastic anti-slip sleeve. The mid-body locking split design allows separation of two valve halves simply by loosening outer buckle assembly, slashing overhaul time by over 60% compared with bolted two-piece ball valves. An explosion-proof limit shoulder is integrated at the stem bottom to prevent stem ejection and medium spray leakage under instantaneous high-pressure surges, while multi-layer PTFE packing fills the independent stuffing box to avoid frequent gland tightening maintenance during long-cycle alternating hot and cold service.

Compressed air pipelines for medium & small air compressors, civil HVAC hot & cold circulating water lines, miniature lube oil delivery units and municipal low-pressure gas branch pipelines form core application scenarios for this lockable two-piece female thread ball valve. Its serviceable split body paired with lock tab anti-misoperation design makes it standard isolation shut-off hardware for light industry, water purification and mini oil & gas skid equipment. The full-port flow bore drastically cuts fluid transmission pressure loss, steadily lowering long-term power consumption of delivery pumps inside 24/7 continuous small circulation systems.