進口帶扳手彈簧微啟式安全閥,(德國OLES閥門品牌)
【進口帶扳手彈簧微啟式安全閥】結構簡述：
1、帶扳手彈簧全啟式安全閥具有結構簡單、密封性能好、開啟壓力準確、排放能力大、回座壓差小、調整方便等特點。
2、噴嘴型閥座：閥座為位伐爾噴嘴型閥座，蒸汽流經(jīng)閥座出口處時達到音速，排放系數(shù)大，閥座密封面堆焊鈷鉻鎢硬質合金，耐磨抗沖蝕，壽命長。
3、熱彈性閥瓣：閥瓣設計為熱彈性結構，利用其在介質壓力下微小的變形，提高密封能力，克服安全閥在介質壓力下臨近整定壓力時的前泄現(xiàn)象。閥瓣密封面采用*的激光淬火技術，提高了硬度、耐磨性、抗沖抗性。
1. Spring full-open safety valve with wrench has the characteristics of simple structure, good sealing performance, accurate opening pressure, large discharge capacity, small pressure difference of return seat and convenient adjustment.
2. Nozzle seat: Valle nozzle seat, steam flow through the outlet of the seat to achieve sound speed, discharge coefficient is large, seating sealing surface surfacing cobalt chromium tungsten carbide, wear and erosion resistance, long service life.
3. Thermoelastic valve disc: The valve disc is designed as a thermoelastic structure, which utilizes its tiny deformation under the medium pressure to improve the sealing ability and overcome the leakage phenomenon of the safety valve near the setting pressure under the medium pressure. The valve seal surface adopts advanced laser quenching technology, which improves hardness, wear resistance and impact resistance.
【進口帶扳手彈簧微啟式安全閥】安裝說明：
1、安全閥必須垂直安裝，并直接安裝在容器或管道的接頭上。接頭內徑應不小于安全閥的進口通徑。
2、安全閥的出口必須裝設適當?shù)呐蛎浌?jié)，以防止排放管的熱膨脹給安全閥帶來不應有的熱應力。排放管內徑應比閥門出口直徑大，長度盡可能短，避免拐彎。排放管及膨脹節(jié)重量不應作用在安全閥上，應固定在建筑上。排放管的中心線與閥體的中心線間距離盡可能的短。對每臺安全閥都應單獨裝設排放管。
3、消聲器的出口處要有足夠的面積，防止產(chǎn)生背壓影響閥門的排放能力。
【進口帶扳手彈簧微啟式安全閥】應用：
此類安全閥應用在蒸汽介質是一般有一個突然全開動作，此突開動作時的壓力為整定壓力（突跳壓力）；應用在空氣介質是，先打開與進口壓力增加開高呈比例升高，然后再突然起跳全開，稱二段式開啟；一般不可用于液體介質。
