In industrial piping, being able to quickly isolate a line for maintenance saves a lot of headaches. JOEPAI high quality two pieces stainless steel threaded union ball valves were built for exactly this purpose. Thanks to the compact two-piece body and threaded union ends, crews can simply unscrew the valve for servicing — no cutting or welding required.
This makes the union ball valve an absolute lifesaver as a service valve for instrumentation, lab setups, and pump inlets here in South Korea. Every valve is 100% leak tested before shipment, and testing can reference KS B 2304 for the Korean market. Thread options include NPT, BSP, and PT, with CF8 / CF8M and STS304 / STS316 material options available.
| Design Standard | ASME B16.34 |
|---|---|
| Wall Thickness | ASME B16.34 |
| Thread Standards | NPT, BSP, or PT |
| Inspection & Testing | KS B 2304 / API 598 / EN 12266 |
| Stem Design | Explosion-proof central axis / Blow-out proof stem |
Testing references KS B 2304 for the Korean market, with API 598 and EN 12266 also available for export projects. Please confirm the exact test standard and edition required for your project before ordering.
You will find the Two Pieces Stainless Steel Threaded Union Ball Valves working hard across all kinds of industries.
Isolate a pressure gauge or flow meter for calibration without draining the whole line.
Top pick for equipment inlets on heat exchangers and filters.
Fast swap-out for lab benches and pilot rigs where piping is fixed.
Service valve for pump suction lines, easy maintenance access.
Passed 100% leak testing to keep your operation safe across media.
Dependable quality and fast delivery for South Korea projects.
Test reference includes KS B 2304, thread options include PT, and our export team supports Korean buyers with documentation and delivery scheduling from Wenzhou, China.
| No. | Part | Material |
|---|---|---|
| 1 | Cap | CF8 / CF8M |
| 2 | Seat | PTFE / RPTFE / PPL |
| 3 | Ball | STS304 / STS316 |
| 4 | Body | CF8 / CF8M |
| 5 | Union | CF8 / CF8M |
| 6 | Union Seal | NBR |
| 7 | Union Nut | CF8 / CF8M |
| 8 | Stem | STS304 / STS316 |
| 9 | Thrust Washer | PTFE |
| 10 | Packing | PTFE |
| 11 | Gland | SS304 |
| 12 | Nut | SS304 / SS |
| 13 | Handle | SS201 / SS |
| 14 | Gasket | PTFE |
Materials can be customized according to working conditions, media, pressure and temperature requirements.
| NPS | DN | D1 | L | H | W |
|---|---|---|---|---|---|
| 1" | 22 | 48 | 96 | 60 | 120 |
| 11/4" | 24 | 51 | 104 | 62 | 145 |
| 11/2" | 32 | 62 | 115 | 80 | 170 |
| 2" | 40 | 75 | 130 | 85 | 170 |
Dimensions are for reference. Please confirm final drawings, thread type and union nut size with JOEPAI before ordering.
A Two Pieces Stainless Steel Threaded Union Ball Valve uses threaded union ends on one or both sides of the valve body. This lets you unscrew the valve from the pipeline for servicing without cutting or welding — making it a popular service valve for instrumentation, lab setups, and pump inlets.
The union nut allows quick removal and reinstallation of the valve while the pipe remains fixed in place. For maintenance teams, this dramatically reduces downtime compared with welded or fully threaded inline valves.
Standard options include NPT, BSP, and PT. PT is especially common for the Korean market. Please confirm the exact thread type required for your project before ordering.
Testing can be conducted according to KS B 2304, API 598, or EN 12266 depending on your market and project requirement. KS B 2304 is often specified for Korean buyers.
Body, cap, union and union nut: CF8 / CF8M. Ball and stem: STS304 / STS316. Seat: PTFE / RPTFE / PPL. Union seal: NBR. Handle: SS201 / SS. Custom materials are available on request.
It is suitable for water, steam, and corrosive acid media. Each valve is 100% leak tested before shipment. Please confirm the seat material (PTFE / RPTFE / PPL) based on your working temperature and chemical compatibility.
Standard sizes in the current dimension table are 1", 11/4", 11/2", and 2". For other sizes or custom dimensions, please contact our team with your required NPS, DN, and thread specification.
Yes. We support sample orders for quality evaluation. Please provide your required size, thread type, seat material, and medium so we can arrange the correct sample configuration.
We offer flexible MOQ for trial orders and long-term cooperation. Normal delivery time is about 15–30 days after order confirmation depending on quantity and customization. Shipping from Wenzhou to Korea is typically fast by sea or air — schedules can be confirmed during quotation.
We provide a 12-month warranty from the date of delivery. For quality issues not caused by human factors, we will repair or replace the product free of charge. Our after-sales team responds quickly to technical or quality concerns.
Tell us your valve size, thread standard, seat material, medium, and required quantity. Our team will reply with price, lead time, and technical confirmation within 24 hours on working days.
Address
Building 2, No. 4228, Binhai 3rd Road, Xinghai Street, Longwan District, Wenzhou City, Zhejiang Province, China
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