4-Way Plug Valve
The 4-way plug valve changes the fluid flow direction or adjusts flow rate by rotating the plug. Multiple flow passages are arranged inside the plug. When the plug rotates to different positions, these passages connect with the inlet and outlet ports on the valve body to realize fluid distribution, mixing, shut-off and other functions.
Structural Features
Reasonable product structure, reliable sealing, excellent performance and elegant appearance.
3-way and 4-way plug valves can be customized with various flow patterns (L-type, T-type, etc.), materials (cast iron, cast steel, stainless steel, etc.) and sealing types (metal hard seal, cartridge seal, oil seal, etc.) according to pipeline working conditions.
Component materials and flange dimensions can be reasonably selected based on actual working conditions or customer requirements to meet various engineering demands.
Technical Specifications
Item | Parameter |
Structure Type | BB-BG |
Operation Mode | Handle, worm gear drive, pneumatic, electric |
Design Standard | API 599, API 6D, GB12240 |
Face-to-Face Dimension | ASME B16.10, GB12221, DIN3202 |
Connecting Flange | ASME B16.5, JB79, GB9113, DIN2543-2545 |
Test & Inspection | API 599 & API 6D, GB13927, DIN3230 |
Product Performance Specifications
Nominal Pressure (LB) | Shell Test Pressure (MPa) | Seat Test Pressure (MPa) | Nominal Pressure (MPa) | Shell Test Pressure (MPa) | Seat Test Pressure (MPa) |
150 | 3.0 | 2.2 | 1.6 | 2.4 | 1.76 |
300 | 7.5 | 5.5 | 2.5 | 3.75 | 2.75 |
600 | 15.0 | 11.0 | 4.0 | 6.0 | 4.4 |
900 | 22.5 | 16.5 | 6.4 | 9.6 | 7.04 |
— | — | — | 10.0 | 15.0 | 11.0 |
— | — | — | 16.0 | 24.0 | 17.6 |
FAQ
1:What are the differences between 4-way ball valves and 4-way plug valves?
Sealing structure: Ball valves seal via sphere sealing rings; plug valves rely on the fit of tapered plugs with metal or soft seals.
Flow resistance: Ball valves have lower flow resistance with smooth bore; tapered plugs of plug valves block media and cause higher pressure drop.
Operating torque: Ball valves open and close effortlessly; plug valves feature large friction and heavy operation.
Applicable working conditions: Ball valves fit high/low pressure and various media; plug valves are mostly used for low-pressure normal-temperature pipelines.
Maintenance: Sealing rings of ball valves are easy to replace; worn tapered plugs of plug valves are harder to repair.
Related Products：4-way Ball Valve
