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Needle type instrument valve
Needle type instrument valve is an important part of the instrument measurement pipeline system, its function is to open or cut off the pipeline path, generally used with pressure gauge
Application
Needle type instrument valve is an important part of the instrument measurement pipeline system, its function is to open or cut off the pipeline path, generally used with pressure gauge. Suitable for water, steam, natural gas, liquefied petroleum gas, city gas, air or nitrogen and other non-corrosive gas pipeline.
Characteristic
• Needle valve spool is a very pointed cone, like a needle inserted into the seat, hence the name;
• The needle globe valve has good sealing and long service life, even if the sealing surface is damaged, it only needs to replace the vulnerable parts, and can continue to use;
• Connection mode: internal thread, external thread, flange, welding, butt welding, socket welding, ferrules, clamp;
• According to the structure of the needle valve is divided into J23, J13, J24, J19, J29, J61, etc.;
• Drive mode: manual, pneumatic, hydraulic, electric.
Design Guides
| Design and manufacture | Inspection and test |
| NB/T47044、JB/T 7747 | GB/T 13927 |
Product Range
| Nominal pressure | PN16～PN420（Class150—Class2500） | |
| Nominal size | DN6～DN25（NPS1/4～NPS1） | |
| Body matenal | F91、F92、F304、F304L、F316、F316L、F347 | |
| Test pressure(MPa) | Strength test (Water pressure) | 1.5×P(38℃ pressure rating) |
| Sealing test (Water pressure) | 1.1×P(38℃ pressure rating) | |
| Applicable Temperature | -29℃～650℃ | |
| Applicable medium | Water, steam, natural gas, oil, etc | |
Note：
1、The valve beyond the above specifications can be customized according to user requirements;
2、The applicable temperature range of each valve shall be subject to the actual pressure bearing material of the valve.