The full range of industrial valves, actuation, piping, sealing, instrumentation and flow control products we supply and support across Australia.
Can’t find it?
Send us the spec or an old part, we source the hard-to-find and equivalents.
Can’t find it?
Send us the spec or an old part, we source the hard-to-find and equivalents.
A needle valve uses a long, tapered needle-shaped plunger that slowly enters or withdraws from a small orifice seat as the handwheel is turned. The multi-turn operation over a very small orifice (1.5mm to 6mm) gives needle valves their characteristically fine and repeatable metering capability.
Double-block-and-bleed (DBB) configurations add isolation and bleed capability for instrument maintenance without system shutdown.
| Parameter | Details |
|---|---|
| Body materials | Brass, Carbon Steel, SS316 (standard), Hastelloy C-276 |
| Connection | NPT screwed, BSP screwed, compression tube, Parker A-LOK |
| Pressure rating | Up to 690 bar (10,000 PSI) |
| Orifice diameter | 1.5mm to 6mm |
| Operation | Multi-turn handwheel (fine adjustment) |
| Packing | PTFE (standard, up to 200°C), Grafoil (high temperature) |
| Seat | Needle-and-seat metal-to-metal |
| Configurations | Standard, double-block-and-bleed (DBB), manifold, panel-mount |
| Locking | Anti-tamper locknut and lockwire provisions available |
