Sanitary Weld Butterfly Valve
KINGMAN supplies sanitary weld butterfly valves. It adopts butt-weld connection to form an integrated, crevice-free pipeline structure, effectively avoiding dirt and bacterial accumulation. The valve body is available in 304 or 316L stainless steel with high-precision inner polishing, ensuring low fluid resistance and zero residual dead zones. Multiple seal material options are provided, including EPDM, PTFE and VMQ, adapting to different temperatures and corrosive process media. Manufactured in strict accordance with 3A, SMS, DIN and ISO standards, the valve meets GMP sanitary requirements and supports CIP on-line cleaning. Designed for permanent installation, it is widely used in food, beverage, pharmaceutical and AI data center liquid cooling pipeline systems. Manual and pneumatic actuation options are available for flexible automatic and manual control.
Specifications
| Parameter | Value |
|---|---|
| Product Type | Sanitary Butterfly Valve |
| Size Range | DN15‑DN200 (approx. 1/2"‑8") |
| Body & Disc Material | 304 / 316L stainless steel (AL6XN, Hastelloy, Alloy 22 available on request) |
| Seal Material | EPDM (standard); PTFE / FKM (Viton) / Silicon (optional — please confirm) |
| Working Temperature | 130 °C |
| Max. Working Pressure | 1000 kPa (10 Bar) for DN15‑DN100; 800 kPa (8 Bar) for DN125‑DN150 |
| Min. Working Pressure | Full vacuum (with EPDM seal) |
| Connection Standard | 3A / SMS / DIN / ISO / RJT / IDF / ASME BPE |
| Connection Type | Tri‑Clamp / Weld / Threaded / Flange (please confirm) |
| Operation Type | Manual handle / Pneumatic actuator |
| Certification | ISO 9001, 3A,CE,EAC,health wading license |
Dimensions
DIN Standard
| Material Code | Size | O | D | K×K | H |
|---|---|---|---|---|---|
| BF01DINWWH104EP015 | DN15 | 78.0 | 18.0 | 8.2×8.2 | 39.0 |
| BF01DINWWH104EP020 | DN20 | 76.0 | 22.0 | 8.2×8.2 | 39.0 |
| BF01DINWWH104EP025 | DN25 | 79.0 | 24.0 | 8.2×8.2 | 39.0 |
| BF01DINWWH104EP032 | DN32 | 82.0 | 28.0 | 8.2×8.2 | 39.0 |
| BF01DINWWH104EP040 | DN40 | 84.0 | 30.0 | 8.2×8.2 | 39.0 |
| BF01DINWWH104EP050 | DN50 | 110.0 | 52.0 | 10.0×10.0 | 52.0 |
| BF01DINWWH104EP065 | DN65 | 127.0 | 70.0 | 10.0×10.0 | 63.5 |
| BF01DINWWH104EP080 | DN80 | 160.0 | 70.0 | 10.0×10.0 | 63.5 |
| BF01DINWWH104EP100 | DN100 | 190.0 | 100.0 | 10.0×10.0 | 80.0 |
| BF01DINWWH104EP125 | DN125 | 220.0 | 120.0 | 12.0×12.0 | 80.0 |
| BF01DINWWH104EP150 | DN150 | 250.0 | 154.0 | 12.0×12.0 | 115.5 |
SMS Standard
| Material Code | Size | O | D | K×K | A | H |
|---|---|---|---|---|---|---|
| BF01SMSWWH104EP019 | 19 | 78.0 | 19.0 | 8.2×8.2 | 50.0 | 39.0 |
| BF01SMSWWH104EP025 | 25 | 78.0 | 25.4 | 8.2×8.2 | 50.0 | 39.0 |
| BF01SMSWWH104EP032 | 32 | 80.0 | 31.8 | 8.2×8.2 | 50.0 | 40.0 |
| BF01SMSWWH104EP038 | 38 | 80.0 | 38.1 | 8.2×8.2 | 50.0 | 40.0 |
| BF01SMSWWH104EP051 | 51 | 100.0 | 50.8 | 10.0×10.0 | 50.0 | 50.0 |
| BF01SMSWWH104EP063 | 63 | 117.0 | 63.5 | 10.0×10.0 | 56.0 | 57.0 |
| BF01SMSWWH104EP076 | 76 | 129.0 | 76.2 | 10.0×10.0 | 60.0 | 64.5 |
| BF01SMSWWH104EP089 | 89 | 140.0 | 88.9 | 10.0×10.0 | 62.0 | 70.0 |
| BF01SMSWWH104EP102 | 102 | 160.0 | 101.6 | 10.0×10.0 | 66.0 | 80.0 |
3A Standard
| Material Code | Size | O | D | K×K | A | H |
|---|---|---|---|---|---|---|
| BF013AWWH104EP050 | 1/2" | 78.0 | 12.7 | 8.2×8.2 | 50.0 | 39.0 |
| BF013AWWH104EP075 | 3/4" | 78.0 | 19.1 | 8.2×8.2 | 50.0 | 39.0 |
| BF013AWWH104EP100 | 1" | 78.0 | 25.4 | 8.2×8.2 | 50.0 | 39.0 |
| BF013AWWH104EP150 | 1 1/2" | 80.0 | 38.1 | 8.2×8.2 | 50.0 | 40.0 |
| BF013AWWH104EP200 | 2" | 100.0 | 50.8 | 10.0×10.0 | 50.0 | 50.0 |
| BF013AWWH104EP250 | 2 1/2" | 117.0 | 63.5 | 10.0×10.0 | 56.0 | 58.5 |
| BF013AWWH104EP300 | 3" | 129.0 | 76.2 | 10.0×10.0 | 60.0 | 64.5 |
| BF013AWWH104EP400 | 4" | 160.0 | 101.6 | 10.0×10.0 | 66.0 | 80.0 |
| BF013AWWH104EP600 | 6" | 225.0 | 152.4 | 12.0×12.0 | 80.0 | 112.5 |
| BF013AWWH104EP800 | 8" | 285.0 | 203.2 | 14.0×14.0 | 90.0 | 142.5 |
ISO Standard
| Material Code | Size | O | D | K×K | A | H |
|---|---|---|---|---|---|---|
| BF01ISOWWH104EP019 | φ19 | 78.0 | 19.0 | 8.2×8.2 | 50.0 | 39.0 |
| BF01ISOWWH104EP025 | φ25 | 78.0 | 25.4 | 8.2×8.2 | 50.0 | 39.0 |
| BF01ISOWWH104EP032 | φ32 | 80.0 | 31.8 | 8.2×8.2 | 50.0 | 40.0 |
| BF01ISOWWH104EP038 | φ38 | 80.0 | 38.1 | 8.2×8.2 | 50.0 | 40.0 |
| BF01ISOWWH104EP045 | φ45 | 95.0 | 45.0 | 8.2×8.2 | 50.0 | 47.5 |
| BF01ISOWWH104EP051 | φ51 | 100.0 | 50.8 | 10.0×10.0 | 50.0 | 50.0 |
| BF01ISOWWH104EP057 | φ57 | 110.0 | 57.0 | 8.2×8.2 | 50.0 | 55.0 |
| BF01ISOWWH104EP063 | φ63 | 117.0 | 63.5 | 10.0×10.0 | 56.0 | 58.5 |
| BF01ISOWWH104EP076 | φ76 | 129.0 | 76.2 | 10.0×10.0 | 60.0 | 64.5 |
| BF01ISOWWH104EP089 | φ89 | 140.0 | 89.0 | 10.0×10.0 | 62.0 | 70.0 |
| BF01ISOWWH104EP102 | φ102 | 160.0 | 101.6 | 10.0×10.0 | 66.0 | 80.0 |
| BF01ISOWWH104EP108 | φ108 | 160.0 | 108.0 | 10.0×10.0 | 66.0 | 80.0 |
| BF01ISOWWH104EP133 | φ133 | 190.0 | 133.0 | 12.0×12.0 | 74.0 | 95.0 |
| BF01ISOWWH104EP159 | φ159 | 225.0 | 159.0 | 12.0×12.0 | 80.0 | 112.5 |
| BF01ISOWWH104EP219 | φ219 | 285.0 | 219.0 | 14.0×14.0 | 86.0 | 142.5 |
Features
- CNC precision‑turned body & disc：Valve body and disc are fully CNC precision‑turned for high dimensional accuracy and perfect mating surface.
- Butt‑weld hygienic connection: Weld‑in‑place structure eliminates extra joints, minimizes leakage risk, delivers continuous smooth flow path without dead‑zones, well‑suited for CIP cleaning.
- High‑grade stainless steel construction: 304 / 316L stainless steel as standard; AL6XN, Hastelloy, Alloy 22 optional for corrosive media.
- Premium multi‑option sealing: EPDM standard, PTFE / FKM(Viton) / Silicon available, adapts to wide temperature and vacuum working conditions.
- Strict pressure test for every unit: Each valve undergoes shell pressure test and seat leakage test before delivery, guarantees reliable sealing under full vacuum and rated pressure.
- Dual operation available: Manual handle or pneumatic actuator for on‑off and flow regulation.
- Global hygienic standard compliance: Manufactured to 3A, SMS, DIN, ISO, RJT, IDF, ASME BPE, certified with ISO9001, CE, EAC for worldwide projects including liquid‑cooled data center, food & pharma systems.
Working Principle
The sanitary welded butterfly valve operates on the same rotating-disc design, but its ends are butt-welded directly into the pipeline, creating a permanent, gapless metal transition. Because the joint involves no flanges, clamps or connection gaskets, the welded version delivers the highest system integrity with the lowest risk of leakage or contamination. It is the ideal solution for permanent hygienic installations, sterile process lines and applications that do not require regular dismantling
Why Choose KINGMAN
Precision Machining
Our 48 MAZAK CNC lathes and 10 machining centers provide in-house capacity for controlling threads, sealing interfaces, connection geometries and other critical dimensions across sanitary stainless steel components.
Trial Orders
You can begin with samples or smaller quantities to evaluate workmanship and product fit before moving the approved specification into regular purchasing, distribution inventory or equipment production.
Material Options
Choose 304, 316L, AL6XN or Hastelloy according to your process media, cleaning chemicals and corrosion conditions instead of being limited to one standard stainless steel material.
