Pneumatic Programmable Valve
Application
Pneumatic program control stop valve is the executive component of industrial production process automation, through the signal from industrial controller or controllable signal source, control the opening and closing of the valve to achieve medium of the pipe’s cut-off and conduction so that realizing automatic control & regulation of the parameters such as flow, pressure, temperature and liquid level. It can be widely used in the automatic & remote-control system of the flammable, explosive, toxic and other gas mediums in the production process of gas separation, petrochemical, metallurgy, electric power, light textile etc. industries.
Remarkable characteristics
◇ Its structure has been simplified and modularized, resulting in smaller volume and flexible, fast and reliable opening & closing.
◇ Adopt new material, new process to make its weight light, operation flexible & convenient, opening & closing fast, appearance aesthetic and flow resistance small.
◇ Material selection is designed according to the sealing requirement in different working conditions, the sealing performance can reach the level of no leakage.
◇ The critical parts are processed by high precision machine tools to ensure the sealing performance and service life of the products.
◇ The products are serialized, especially suitable for sealing performance, frequent opening and closing.
◇ By adding accessories, the valve can also be opened slowly or closed slowly so that the valve can be regulated.
◇ The valve air source interface adopts plate nozzles, and various types of electromagnetic valves and proximity switches can be installed.
Main Technical Parameter
| No. | Item | Technical Parameter | No. | Item | Technical Parameter |
| 1 | Valve Name | Pneumatic Program Control Stop Valve | 6 | Applicable Working Temp. | -29℃～200℃ |
| 2 | Valve Model | J641-AL | 7 | Working Pressure | See Nameplate |
| 3 | Nominal Pressure PN |
16, 25, 40, 63 | 8 | Opening & Closing Time | ≤2～3 (s) |
| 4 | Nominal Diameter DN |
15～500 (mm) 1/2″～12″ |
9 | Companion Flange | Executive Standard HG/T 20592-2009 AMSE B16.5-2013 |
| 5 | Signal Pressure | 0.4～0.6 (MPa) | 10 | Applicable Medium | NG, Air, Steam, H2, N2 , O2, CO2, CO etc. |
| 11 | Main Component Material | valve body: WCB or stainless steel.Stem: 2Cr13, 40Cr, 1Cr18Ni9Ti, 45.Spool: carbon steel.Valve seat: 1Cr18Ni9Ti, 316.The specific materials used shall be selected according to the temperature, pressure, medium, flow and other technical condition of the valve in project to ensure that the valve meets the requirements of technological conditions. | |||
The Comparable Table of Metric System and English System for Nominal Diameter and Nominal Pressure
Nominal Diameter
| ND | DN/mm | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 300 |
| NPS/In(″) | 1/2 | 3/4 | 1 | 11/4 | 11/2 | 2 | 21/2 | 3 | 4 | 5 | 6 | 8 | 12 |
Remark: NPS refers to inch diameter.
Nominal Pressure
| NP | PN/MPa | 16 | 25 | 40 | 63 |
| CL/class | 150 | 250 | 300 | 400 |
Remark: CL refers to the pressure class in English system.
After-sale Service
◇ The ALLY pneumatic program stop valve is guaranteed for 12 months from the date of purchase.
◇ During the guarantee period, ALLY provides free maintenance for the quality problems of the valve itself.
◇ Out of the warranty period, ALLY provides lifelong technical services, including valve maintenance and the provision of vulnerable parts.
◇ In case of improper use or man-made damage during the guarantee period and normal maintenance outside the guarantee period, ALLY will charge appropriate materials and service fees.
◇ ALLY provides the spare parts of various specifications and models of valves to customers for long terms, and ensured that they are provided in a high quality, good price and fast manner at any time.
