3-Piece Stainless Steel Threaded Ball Valves
Welded 3-Piece Stainless Steel Ball Valve
A welded 3-piece stainless steel ball valve in which the end pieces are joined to the pipe by socket-weld (SW) or butt-weld (BW). It eliminates the risk of leakage from threaded connections; it provides a permanent and leak-free connection on high-temperature, high-pressure and vibration-prone pipelines.
Thanks to its 3-piece construction, the end pieces remain welded to the pipe while the middle body can be removed to replace the ball and seals; the middle body is separated during assembly to prevent damage to the seals during welding. Available in AISI 304 and AISI 316 options, pressure classes PN16–PN40 and sizes DN15–DN100.
DN15–DN1001/2″ – 4″
PN16–PN40Pressure class
SW / BWSocket-weld / butt-weld ends
AISI 304/316Stainless steel body
Benefits
- Threadless, permanent and leak-free welded connection
- Socket-weld and butt-weld end options
- Maintenance possible while welded ends remain on line
- AISI 304 and AISI 316 material options
- Suitable for vibration and high-temperature pipelines
Applications
- Steam and hot water lines
- Chemical and petrochemical plants
- Food and pharmaceutical process lines
- High-pressure gas lines
Technical Specifications
| Nominal sizes | DN15 – DN100 (1/2″ – 4″) |
|---|---|
| Pressure class | PN16 – PN40 |
| Connection | Socket-weld (SW) or butt-weld (BW) |
| Body type | 3-Piece |
Materials
| Body / Cap | AISI 304 or AISI 316 stainless steel |
|---|---|
| Ball | AISI 304 / 316 stainless steel |
| Seats and seals | PTFE (Teflon) |
| Stem | Stainless steel |
| Lever | Stainless steel, plastic-coated |
Why ORFA?
Since 1985Over 40 years of experience in industrial piping equipment supply.
Technical ConsultingSupport in selecting the right valve based on line pressure and size.
Stock DeliveryCommon sizes shipped same day from stock.
Spare PartsBall seal kit, stem and lever assembly and other valve spare parts from a single point of contact.
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