Brief introduction of needle type valve: meter needle typevalve is an important part in meter measurement pipeline system, it mainly hastwo types: stop valve and ball valve, with its function is to open or cutpipeline.

Socket meter valve has many advantages, such as easy to fix and remove,fastening connection, fire-proof, explosion resistant, high-pressure resistant,high sealed ability, etc, it's an advanced valve for connection in electric station, oil refining, chemical plant installations and meter measurement pipeline system.

Pintle stop valve has high sealing ability and longuseful life, even if the sealing face is damaged, it can be used for furtherafter changing quick-wear part.
Flowing of medium should be in accordance with pointer on valve body wheninstalling.

Hand-operated stop valve and ball valve can be installed on any position ofpiping.
Material of valve body: cast steel, stainless steel, forged steel. Highestoperating pressure: 1.6-42MPA (10000PSI).
Operating temperature: -60°C -900°C.
Valve bore DN6-DN50.
Connection: flange, screw connector or jointing.
Applications: mechanical equipment, chemical equipment, general spare parts,industrial equipment, water supply and drain system, papermaking facilities,pharmaceutical device, general-purpose equipment, petrochemical equipment,power apparatus, metallurgical powder equipment, mining equipment, municipals,electronic industry, etc.

Operational principle
Magnetic-lock valve adopts pull and push magnetic circles optimal designaccording to "no leakage of permanent-magnet rotation theory". It changesmechanical power of traditional valve into permanent-magnet torque, throughrotating specialized handwheel and making shieldinginner yoke (joint with valve rod) rotate with it together, then to finish theprocess of valve open and close. This kind of open and close system is sealedinside valve, it avoided former dynamic seal, so valveoutleakage was completely disappeared. Handwheel can be taken away after finish operating becausethere is no mechanical connection between operational handwheeland valve rod. Unique technical structure makes magnetic torque valve hasfunctions of no outleakage, prevention of burglaryand self lock.

Outstanding features
1. No outleakage: adopts "no leakage ofpermanent-magnet rotation technology", to seal open and close system insidevalve, finish opening and closing process through rotating specialized handwheel, completely stop outleakage.
2. Prevention of burglary: Handwheel can be takenaway after finish operating because there is no mechanical connection betweenoperational handwheel and valve rod, which both canavoid false operation and prevent burglary, help to control and manage.
3. Coded lock: make use of magnetic field conductive polarity and intensitychange, different designed mechanical size, to make products have coded lockfunction. That means certain valve only can be opened by certain handwheel, to achieve one valve with one key or multiplevalves with one key.
4. Long useful life: valve is fully sealed to avoid packing and gasket, reduceabrasion of valve rod, make valve open and close flexibly, and antirust, whichprolong valve useful life.
5. Environmental protection and pollution-free: improve working condition andsolve the problem of pollution on scene because of no outleakage,it is a kind of real environment-friendly valve.