一.Product Introduction
 J21H-160, J21W-160P, J21W-160R type external threaded globe valve: manual, external threaded connection form, straight-through structure, seat sealing surface material is stainless steel, working pressure 16.0MPa, nominal size DN6~DN15, valve body material is carbon steel (J21H), stainless steel (J21W), suitable for water, steam, oil (J21H), weakly corrosive or corrosive (J21W) medium pipeline.
J21H-160, J21W-160P, J21W-160R type external threaded globe valve, the connection between the pipeline and the valve body adopts external threaded live connection type, also known as external threaded needle valve, external threaded needle valve, is one of the most used valves in electric power, electrical, mechanical and electrical equipment engineering, and electronic control equipment engineering. One of the most used valves.Because of its convenient installation, reasonable manufacturing, and simple economy, it is widely used in pipelines such as power engineering.
二.Product Features
– Manual operation. – External threaded connection form.
– Straight – through structure.
– Seat sealing surface material is stainless steel. – Working pressure is 16.0MPa. – Nominal size ranges from DN6 to DN15.
– Valve body material includes carbon steel (J21H) and stainless steel (J21W).
– Suitable for water, steam, oil (J21H), and weakly corrosive or corrosive (J21W) medium pipelines.
– The connection between the pipeline and the valve body adopts external threaded live connection type (also known as external threaded needle valve.
三.Technical data
| Main performance parameters of J21H-160, J21W-160P, J21W-160R type external thread globe valve | ||||
| Model number | PN | Working pressure/ MPa | Applicable temperature/ ℃ | Applicable media |
| J21H-160 | 160 | 16 | less than 425 | Non-corrosive media such as water, steam, oil, etc. |
| J21W-160P | less than 150 | Chrome-nickel-titanium stainless steel | ||
| J21W-160R | Corrosive media | |||
| J21H-160, J21W-160P, J21W-160R type external thread globe valve parts and materials | |||||
| Model number | Material | ||||
| Valve body, valve cover | Stem, disc, seat | Stem nut | Packing | Handwheel | |
| J21H-160 | Carbon steel forgings | Chrome stainless steel | Cast aluminum bronze | Asbestos graphite | Ball milled cast iron |
| J21W-160P | Chrome-nickel-titanium stainless steel | Chrome-nickel-titanium stainless steel | PTFE | ||
| J21W-160R | Chromium nickel molybdenum titanium stainless steel | Chromium nickel molybdenum titanium stainless steel | |||
 四.The main shape and connection size
| J21H-160, J21W-160P, J21W-160R type external thread globe valve shape and structure size (mm) | ||||||
| DN | L | L1 | h | H | H1 | D0 |
| 6 | 60 | 15 | 15 | 85 | 91 | 65 |
| 10 | 60 | 15 | 15 | 89 | 99 | 65 |
| 15 | 60 | 15 | 15 | 100 | 115 | 65 |
Â