旋塞閥概述 Plug valve summary
旋塞閥構(gòu)造簡(jiǎn)略,啟閉敏捷,流體阻力小。這些年作為歷被大家選用的閥門(mén)之一,不光沒(méi)有被球閥等型式的閥門(mén)所替代,反而商場(chǎng)出現(xiàn)愈來(lái)愈火爆的趨勢(shì)。
旋塞閥是關(guān)閉件或柱塞形的旋轉(zhuǎn)閥,通過(guò)旋轉(zhuǎn)90度使閥塞上的通道口與閥體上的通道口一樣或分隔,完結(jié)敞開(kāi)或關(guān)閉的一種閥門(mén)。旋塞閥的閥塞的形狀可成圓柱形或圓錐形。在圓柱形閥塞中,通道一般成矩形;而在錐形閥塞中,通道成梯形。
Plug valve use Plug with holes as valve disc,turn disc and stem to open and shut valve.
Structure plug valve is simple,speedy open and shut,small flow resi-stance.lt's the earliest valve used in the history for human,it's not only no instead of by another type valves such as ball valve,but also have more market in the future.
結(jié)構(gòu)特點(diǎn) Structure features
1. 閥體進(jìn)出口端窗口設(shè)計(jì)為雙道溝槽密封環(huán)結(jié)構(gòu),旋塞在旋轉(zhuǎn)過(guò)程中,其密封副件的密封比壓在不斷變化,直至到達(dá)全開(kāi)關(guān)位置時(shí),產(chǎn)生足夠的密封比壓,密封副達(dá)到零泄漏。
2. 雙道溝槽密封環(huán)既可以使PTFE襯套穩(wěn)固在閥體內(nèi)不產(chǎn)生位移,又可吸收由于溫差變化引起襯套產(chǎn)生的微量變形,同時(shí)襯套與旋塞之間產(chǎn)生有力的擦拭作用,又提高了密封面的使用壽命。
3. 塞軸上部采用了一個(gè)PTFE膜片和O型圈與調(diào)節(jié)墊片組合,既可以調(diào)整密封面的密封比壓,使塞子轉(zhuǎn)動(dòng)靈活,又能保證進(jìn)、出口端和中法蘭連接端的密封。
4. 整個(gè)密封過(guò)程可近似認(rèn)為與管道內(nèi)壓力無(wú)關(guān)。
5. PTFE襯套內(nèi),根據(jù)使用溫度和工作介質(zhì)采用不同襯料的填充物,潤(rùn)滑好、壽命長(zhǎng)。
1. Design of valve inlet and outlet bore is double path groove seal ring structure,seal pressure rating is changing between seal component,till ti full open and close position,then produce enough seal pressure rating,no any leakage of seal component.
2. Double path groove seal ring structure not only make PTFE lining fixed in the body and can't remove,but also increase powerful friction between lining layer and plug,to enhance the using life of seal face.
3. ln the top of plug is a component consists of PTFE diaphragm,O ring and modulating gasket,it can modulate seal face and seal pressure rating,it makes plug rotary,and also keep connection seal of inlet & outlet and middle flange.
4. Whole seal process almost have no any relation with inner pipeline pressure.
5. lnto the PTFE liner,use different fill in lining material base on the using temperature and working medium,good lubricate and long using life
設(shè)計(jì)規(guī)范 Design specification
遵循規(guī)范 Follow the norms | STANDARD |
設(shè)計(jì)與制造 Design and manufacture | API 599 |
結(jié)構(gòu)長(zhǎng)度 Face to face | API 599(ANSI 150Lb~300Lb NPS1/2~12) ANSI B16.10(ANSI 600Lb或NPS>12) |
法蘭尺寸 Dimension of flange | ANSI B16.5 |
壓力試驗(yàn) Pressure test | API 598 |
標(biāo)志 Symbol | MSS SP-25 |
供貨 Supply | API 599 |
結(jié)構(gòu)特征 Structure features
主要零部件材料表 Material for main parts
序號(hào) No. | 零件名稱(chēng) Parts name | 灰鑄鐵 Gray iron | 碳鋼 Carbon steel | 不銹鋼 Stainless steel | 超低碳不銹鋼 Ultra low-carbon stainless steel | ||
Z | C | P | R | PL | RL | ||
1 | 閥體、閥蓋 Body,Cap | A126 Ci35A | A216 WCB | CF8 | CF8M | CF3 | CF3M |
2 | 襯里層、閥座、卡套 Lining,valve plate,Ferrule | PFEP(F4)、PCTFE(F3)、PVDF(F2)、FEP(F46)、PFA PPL | |||||
3 | 塞子 Plug | A216、WCB、A105、MONEL合金(Alloy)、CF8、CF8M、CF3、CF3M | |||||
4 | 調(diào)節(jié)墊圈 Adjust screw | A182 F6、A182 F304、A182 F316、A182 F304L、A182 F316L | |||||
5 | 調(diào)節(jié)墊片 Conditioning pads | RPTFE PFA | |||||
6 | O型圈 O ring | VITION(氟橡膠) | VITION(氟橡膠) | ||||
7 | 螺栓 Bolt | A193 B7 | A193 B8M | ||||
8 | 螺母 Nut | A194 2H | A1948 | ||||
9 | 手柄 Hand wheel | A105/EP.CR | A105/EP.CR |
咨詢(xún)或訂購(gòu) 氣動(dòng)襯氟旋塞閥 時(shí)需提供一下參數(shù): | |
· | 旋塞閥的型號(hào),老客戶如需再次訂購(gòu)可直接提供合同編號(hào)。 |
· | 旋塞閥的口徑(螺紋可提供螺紋直接,法蘭需提供法蘭孔距離尺寸)。 |
· | 旋塞閥是否需配套附件或輔助設(shè)備,如需請(qǐng)注明。 |
· | 旋塞閥的工作壓力(額定壓力)。 |
· | 旋塞閥使用的介質(zhì)(是否帶有雜質(zhì)),以及介質(zhì)溫度。 |
服務(wù)承諾 | |
· | 產(chǎn)品嚴(yán)格按照國(guó)家 GB標(biāo)準(zhǔn)、HG 標(biāo)準(zhǔn)及美國(guó) API 等標(biāo)準(zhǔn)設(shè)計(jì)、制造、驗(yàn)收。密封面硬度達(dá)到國(guó)家規(guī)定要求,寬度超過(guò)國(guó)家標(biāo)準(zhǔn)。 |
· | 紅閥產(chǎn)品質(zhì)保期為自出廠起 12 個(gè)月,(認(rèn)為損壞除外)。 |
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