VF87 Triple eccentric butterfly valve - butterfly valve - Produkte

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PUMASON AUTOMATION SYSTEMS GMBH

Produkte >> butterfly valve >> VF87 Triple eccentric butterfly valve

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Product Description:
PUMASON company produces oblique eccentric butterfly valve cone seal, seat hard and soft metal composite laminated and sealed two kinds of pure metal design, the valve shaft one-piece valve shaft design, and other devices designed to prevent explosion changes in line pressure due to displacement of the valve shaft, and dust-proof design of the bushing, to prevent the pipes leading to fluid within the valve into the valve shaft rotation axis can not be normal, in addition to the valve shaft center and the center of the body do not overlap, interference angle are offset, so that the valve moment completely out in the open seat, it is less likely to wear seat, closed more tightly sealing off the more the more reliable, increasing the life of the valve, is currently the world a few valve manufacturers to achieve zero leakage requirements, the third area of standards designed to meet ISO 5211 requirements, which will help to extend the tube using a high temperature, valve for high temperature, high pressure, fire, corrosion and other harsh conditions of use, used in petroleum, natural gas, chemical, refining, energy, power, ultra-low temperature place for process shutdown valve function and regulation, can be provided according to different requirements of the process for customers to purchase a variety of different materials.
Main features:
1.structural strength meet: ASME B16.34, API 598
2.high temperature, high pressure, corrosion, wear-resistant characteristics
3.switch life of up to 50000 times
4.oven standards with TA-LUFT requirements and test
5.API 607 trial by fire
6.according to API 609 spacing design
Three-dimensional eccentric geometry:
Eccentric 1: valve shaft is located in the back seat, fully sealed tightly around making contact with the valve seat.
Eccentric 2: deviation from the centerline of the valve shaft centerline pipes and valves, valves open and close by to avoid interference.
Eccentric 3: seat cone axis deviation from the centerline of the valve shaft, so you can close and open the process to eliminate friction effects, and to achieve uniform around the entire seat of the compression seal.
Longer service life without friction seal:
1.as a standard configuration, the seat taken Cr13 alloy or tungsten-cobalt alloy hard surface contact.
2.spiral coiled stainless steel gasket / graphite, used to achieve zero leakage.