J41F46 is a globe valve, not a gate valve. Its stem moves the disc axially to open or isolate the flow. FEP protects the intended wetted surfaces; F46 must not be relabelled as PTFE/F4.
Typical selection options
| Product | J41F46 WCB FEP-Lined Flanged Globe Valve |
|---|---|
| Nominal size | DN15–DN300 |
| Pressure class | PN10 / PN16 / PN25 |
| Body material | WCB cast steel |
| Lining / seat | FEP (F46); other linings on request |
| Connection | Flanged |
| Operation | Handwheel |
| Temperature | -20–150°C |
| Media | Compatible acids, alkalis and salt solutions |
| Design / connection standard | JB/T 14311 |
| Pressure and closure test | GB/T 13927 |
Series reference options, not all possible combinations of size, material, pressure and temperature. Allowable working pressure varies with temperature; select the build when ordering.

Installation and selection
Typical selection reference: DN15–DN300, PN10/PN16/PN25 and -20–150°C. Follow the flow arrow, protect lining faces and tighten evenly; a conventional lined shutoff valve is not intended for continuous throttling.
Purchasing questions
Is it a gate or globe valve?
It is a J41F46 globe valve with an axially moving disc.
Are other linings available?
FEP is the main lining; PFA, PTFE or other linings can be requested for the application.
What are the usual ranges?
DN15–DN300, PN10/PN16/PN25 and FEP -20–150°C are selection references, not all combinations of their limits.