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JIS wafer type, flanged type three eccentric hard sealing butterfly valve.
Purpose and characteristic
Main configuration characteristic of 10K and 20K series of butterfly valve is composed of wafer and flange three eccentric seal, seat gasket use two
configurations of elastic seal and soft hard compatible multiple layers seal, reliable hermetic capability, so as to ensure disc can't touch sealing seat when it operation,
solve the problem of sealing seat burden unequally, prolong service life, with advantage of high temperature resistant, wearable, antisepsis etc. It has been widely
utilized in petroleum, chemical industry and industrial environmental protection water treatment, high buildingconstruction, water supplying and draining pipe etc.
Standard
| Design standard | Flange connection dimension | Structure length | Pressure test |
| API609-1983 | JIS B2212, JIS B2213, JIS B2214 | JIS B2002-1987 | JIS B2003-1987 |
Main performance parameter
Nominal diameter NPS(inch) | Nominal pressure PN(MPa) | Test pressure | Suitable medium | Suitable temperature | |
| Strength test | Seal test | ||||
| 2"~48" | 10K | 1.5 | 1.1 | Water, steam, oil seawater etc. | -29～550℃ |
| 2"~48" | 20K | 3.0 | 2.2 | ||
