Welding Male
KINGMAN sanitary Welding Male for sanitary union is precision-machined from SS304/SS316L stainless steel, complying fully with 3A, SMS, DIN and BPE international high-end hygienic standards. It acts as the main base component of sanitary unions. Its external thread is precisely matched with the thread of the round nut. It features flat end face and full mirror-polished inner wall with continuous smooth flow path free of hygienic dead zones. Assembled together with flat joint and round nut to form a complete union assembly, it supplies axial locking force through thread engagement. Compatible with CIP online cleaning and SIP high-temperature sterilization, it is widely used in detachable high-purity hygienic pipelines for biopharmaceutical, food & beverage and fine chemical industries.
Specifications
| Parameter | Value |
|---|---|
| Product Type | Sanitary Union |
| Size Range | DN15–DN150 (approx. 1/2"–6") |
| Material | 304 / 316L stainless steel |
| Seal Material | EPDM / FKM (Viton) / Silicon |
| Connection Standard | 3A / SMS / DIN / ISO / RJT / IDF /ASME BPE |
| OEM | any special OEM services |
| Certification | ISO 9001, 3A,CE,EAC,health wading license |
Dimensions
DIN 11851 Standard
| Material Code | Size | A | D | G |
|---|---|---|---|---|
| FU02DIN0411015 | DN15 | 18.0 | 18.0 | RD34×1/8 |
| FU02DIN0411020 | DN20 | 20.0 | 22.0 | RD44×1/6 |
| FU02DIN0411025 | DN25 | 21.0 | 28.0 | RD52×1/6 |
| FU02DIN0411032 | DN32 | 21.0 | 34.0 | RD58×1/6 |
| FU02DIN0411040 | DN40 | 21.0 | 40.0 | RD65×1/6 |
| FU02DIN0411050 | DN50 | 21.0 | 52.0 | RD78×1/6 |
| FU02DIN0411065 | DN65 | 23.0 | 70.0 | RD95×1/6 |
| FU02DIN0411080 | DN80 | 26.0 | 85.0 | RD110×1/4 |
| FU02DIN0411100 | DN100 | 28.0 | 104.0 | RD130×1/4 |
| FU02DIN0411125 | DN125 | 30.0 | 129.0 | RD160×1/4 |
| FU02DIN0411150 | DN150 | 32.0 | 154.0 | RD190×1/4 |
SMS Standard
| Material Code | Size | A | G | D |
|---|---|---|---|---|
| FU02SMS0411019 | 19 | 16.0 | RD34×1/8 | 19.1 |
| FU02SMS0411025 | 25 | 18.0 | RD40×1/6 | 25.4 |
| FU02SMS0411032 | 32 | 20.0 | RD48×1/6 | 31.8 |
| FU02SMS0411038 | 38 | 20.0 | RD60×1/6 | 38.1 |
| FU02SMS0411051 | 51 | 21.0 | RD70×1/6 | 50.8 |
| FU02SMS0411063 | 63 | 22.0 | RD85×1/6 | 63.5 |
| FU02SMS0411076 | 76 | 24.0 | RD98×1/6 | 76.2 |
| FU02SMS0411189 | 89 | 26.0 | RD110×1/6 | 88.9 |
| FU02SMS0411102(1) | 102 (1) | 27.0 | RD125×1/6 | 101.6 |
| FU02SMS0411102(2) | 102 (2) | 28.0 | RD132×1/6 | 101.6 |
3A Standard
| Material Code | Size | G | D | A‑15TRF | A‑15A |
|---|---|---|---|---|---|
| FU023A0411100 | 1" | 37.13×1/8TACME | 25.4 | 18.3 | 34.9 |
| FU023A0411150 | 1 1/2" | 50.65×1/8TACME | 38.1 | 18.3 | 38.1 |
| FU023A0411200 | 2" | 64.1×1/8TACME | 50.8 | 19.1 | 38.1 |
| FU023A0411250 | 2 1/2" | 77.67×1/8TACME | 63.5 | 22.2 | 44.5 |
| FU023A0411300 | 3" | 91.19×1/8TACME | 76.2 | 23.1 | 44.5 |
| FU023A0411400 | 4" | 119.25×1/6TACME | 101.6 | 26.2 | 44.5 |
ISO Standard
| Material Code | Size | A | G | D‑IDF | D‑ISO |
|---|---|---|---|---|---|
| FU02ISO0411100 | 1" | 21.5 | 37.13×8TACME | 25.4 | 25.6 |
| FU02ISO0411150 | 1 1/2" | 21.5 | 50.65×8TACME | 38.1 | 38.6 |
| FU02ISO0411200 | 2" | 21.5 | 64.16×8TACME | 50.8 | 51.6 |
| FU02ISO0411250 | 2 1/2" | 21.5 | 77.67×8TACME | 63.5 | 64.1 |
| FU02ISO0411300 | 3" | 21.5 | 91.19×8TACME | 76.2 | 76.7 |
| FU02ISO0411400 | 4" (ISO) | 21.5 | 118.4×8TACME | / | 102.5 |
| FU02IDF0411400 | 4" (IDF) | 30.0 | 125.9×6TACME | 101.6 | / |
Features
- Compliant with BPE, 3A, SMS and DIN international hygienic standards. Precisely machined external thread ensures smooth engagement and perfect fit with matched round nut with good interchangeability.
- The threaded section and sealing face are precisely machined with good concentricity. Uniform stress distribution prevents offset during assembly and guarantees good contact of sealing faces.
- Uniform wall thickness and high structural rigidity. Threads resist wear and slipping after repeated tightening and disassembly to maintain stable connection over long service cycles.
- Full mirror-polished inner wall creates smooth flow path to minimize medium residue. It supports CIP online cleaning and meets requirements for high-purity sterile fluid transfer.
- High-precision machined end face achieves tight cooperation with gasket and flat joint. It withstands pipeline pressure fluctuation and fluid impact to eliminate leakage risks.
- As the base body of sanitary union, it can be quickly assembled with flat joint and round nut, simplifying disassembly and maintenance of hygienic pipelines.
Working Principle
As the core base component of sanitary unions, the threaded joint undertakes thread driving, positioning support and flow guiding. During pipeline assembly, rotating the round nut advances axially along the external thread of the threaded joint, transferring locking force to the flat joint and sanitary gasket. The sealing faces are pressed tightly to form a sealed leak-free structure. Media flows through the inner bore; the smooth continuous flow path ensures steady fluid transmission without turbulence or local stagnation to preserve high-purity and hygienic medium. The high-strength base bears locking load and absorbs pipeline vibration and pressure variation to protect the whole sealing assembly. It supports repeated disassembly, cleaning and reassembly, fully complying with BPE and GMP high hygienic pipeline standards.
Why Choose KINGMAN
Weld-End Review Before Order
Provide pipe dimensions or drawings so the welding male specification can be checked before production, reducing field modification during sanitary line installation.
7–15 Day Custom Turnaround
Non-standard sanitary union parts typically require 7–15 working days after dimensions and material requirements are confirmed, keeping custom sourcing schedules more predictable.
Warranty After Delivery
Export orders include a 1-year international warranty and lifetime technical support, with replacement or spare-part support for qualifying warranty cases.
