進(jìn)口波紋管減壓閥,(德國OLES奧萊斯閥門)品牌
【進(jìn)口波紋管減壓閥】結(jié)構(gòu)說明：
1、閥前進(jìn)口介質(zhì)壓力從閥瓣和閥體密封圈開啟間隙進(jìn)入體腔使介質(zhì)壓力流滿波紋管的組合箱，波紋管和彈簧因受介質(zhì)壓力的擠壓而壓縮，閥瓣隨著閥桿位移，閥瓣產(chǎn)生對閥體密封圈的關(guān)閉，將閥前介質(zhì)截止，不作閥后介質(zhì)壓力的補(bǔ)充。當(dāng)閥后的介質(zhì)壓力降低，波紋管因受調(diào)節(jié)彈簧的徑項(xiàng)力，使波紋管疊紋變形，閥桿將閥瓣頂開。使介質(zhì)通過閥體密封圈補(bǔ)充閥后壓力的降低。 2、本閥是由閥體、閥蓋、閥瓣、閥體密封圈、閥桿、波紋管、調(diào)節(jié)彈簧等零件組成，體腔進(jìn)口組裝有閥瓣、閥體密封圈和輔彈簧，輔彈簧是保持閥瓣和閥體密封圈自動(dòng)的密封，出口體腔組裝彈性密封元件（波紋管）即保證閥后介質(zhì)壓力的泄漏和克服壓力不均勻度的補(bǔ)償。螺釘是調(diào)整彈簧負(fù)荷壓力減壓閥工作性能。
1. The medium pressure at the valve front inlet enters the body cavity from the opening clearance between the disc and the body seal ring, so that the medium pressure flows into the combined box of the bellows. The bellows and springs are compressed by the pressure of the medium. With the displacement of the valve stem, the disc closes the body seal ring and cuts off the medium in front of the valve and does not act as the medium pressure behind the valve. Supplement. When the medium pressure behind the valve decreases, the bellows are deformed by the diameter force of the regulating spring, and the valve stem opens the disc. Make the medium through the valve body seal ring to supplement the pressure drop after the valve. 2. The valve is composed of valve body, cover, disc, body seal ring, stem, bellows, adjusting spring and other parts. The body cavity inlet is assembled with valve disc, body seal ring and auxiliary spring. The auxiliary spring is to keep the valve disc and body seal ring automatically sealed, and the outlet body cavity is assembled with elastic sealing elements (bellows) to ensure the rear of the valve. The leakage of medium pressure and the compensation of overcoming pressure nonuniformity. The screw is used to adjust the working performance of the spring load pressure relief valve.
【進(jìn)口波紋管減壓閥】用途：
波紋管式減壓閥用于溫度在180℃以下的蒸汽、空氣及其無腐蝕性氣體的管路上，經(jīng)過調(diào)節(jié)，使通過閥內(nèi)的介質(zhì)壓力減至某一需要的出口壓力，并使介質(zhì)的出口壓力保持相對穩(wěn)定，但波紋管減壓閥進(jìn)口壓力與出口壓力之差必須大于或等于0.2MPa
【進(jìn)口波紋管減壓閥】工作原理：
介質(zhì)走向由上進(jìn)下出，當(dāng)調(diào)節(jié)出口壓力時(shí)，順時(shí)針旋轉(zhuǎn)調(diào)節(jié)螺栓，迫使活塞向下移動(dòng)，打開主閥，改變節(jié)流面積，造成壓力損失，實(shí)現(xiàn)減壓。由于減壓閥閥后介質(zhì)通過“X”通道流入活塞下腔并與活塞上方保持平衡，當(dāng)壓力和流量變化時(shí)，使主閥節(jié)流面積始終保持相應(yīng)位置，由于減壓閥Y42F采用卸荷機(jī)構(gòu)，減小了進(jìn)口壓力變化對出口壓力的影響，同時(shí)加大了出口壓力作用面積，即加大敏感元件作用面積，從而減小了閥門出口壓力偏差，大大提高了減壓閥的穩(wěn)壓精度。
調(diào)壓方法：
1、關(guān)閉減壓閥前的截止閥，開啟減壓閥后的截止閥，制造下游低壓環(huán)境。
2、卸下減壓閥上端的防護(hù)罩調(diào)節(jié)螺釘按逆時(shí)針旋轉(zhuǎn)*位置（相對低出口壓力），然后關(guān)閉減壓閥后截止閥。
3、慢慢開啟減壓閥前的截止閥至全開。
4、順時(shí)針緩慢旋轉(zhuǎn)調(diào)節(jié)螺釘，將出口壓力調(diào)至所需的壓力（以閥后表為準(zhǔn)）調(diào)整后，將鎖緊螺母備緊，擰上防護(hù)罩，打開減壓閥后截止閥。
