意大利ATOS減壓閥-ATOS阿托斯直動式減壓閥上海*
減壓閥工作原理,壓力為P1的壓縮空氣,由左端輸入經(jīng)閥口10節(jié)流后,壓力降為P2輸出。P2的大小可由調(diào)壓彈簧2、3進行調(diào)節(jié)。順時針旋轉(zhuǎn)旋鈕1,壓縮彈簧2、3及膜片5使閥芯8下移,增大閥口10的開度使P2增大。若反時針旋轉(zhuǎn)旋鈕1,閥口10的開度減小,P2隨之減小。
減壓閥工作原理,若P1瞬時升高,P2將隨之升高,使膜片氣室6內(nèi)壓力升高,在膜片5上產(chǎn)生的推力相應(yīng)增大,此推力破壞了原來力的平衡,使膜片5向上移動,有少部分氣流經(jīng)溢流孔12、排氣孔11排出。在膜片上移的同時,因復(fù)位彈簧9的作用,使閥芯8也向上移動,關(guān)小進氣閥口10,節(jié)流作用加大,使輸出壓力下降,直至達到新的平衡為止,輸出壓力基本又回到原來值。若輸入壓力瞬時下降,輸出壓力也下降、膜片5下移,閥芯8隨之下移,進氣閥口10開大,節(jié)流作用減小,使輸出壓力也基本回到原來值。 逆時針旋轉(zhuǎn)旋鈕1。使調(diào)節(jié)彈簧2、3放松,氣體作用在膜片5上的推力大于調(diào)壓彈簧的作用力,膜片向上曲,靠復(fù)位彈簧的作用關(guān)閉進氣閥口10。再旋轉(zhuǎn)旋鈕1,進氣閥芯8的頂端與溢流閥座4將脫開,膜片氣室6中的壓縮空氣便經(jīng)溢流孔12、排氣孔11排出,使閥處于無輸出狀態(tài)。
總之,溢流減壓閥是靠進氣口的節(jié)流作用減壓,靠膜片上力的平衡作用和溢流孔的溢流作用穩(wěn)壓;調(diào)節(jié)彈簧即可使輸出壓力在一定范圍內(nèi)改變。為防止以上溢流式減壓閥徘出少量氣體對周圍環(huán)境的污染,可采用不帶溢流閥的減壓閥(即普通減壓閥),其符號如圖14—1c所示。
意大利ATOS減壓閥-ATOS阿托斯直動式減壓閥常見型號:RZGA-A-010/210/M 20 RZGA-A-010/32/M/7 20 RZGA-A-033/80/M/7 31 RZGO-A-010/100 20 RZGO-A-010/210 20 RZGO-A-033/100 RZGO-A-033/210 RZGO-A-033/315 31 RZGO-AE-010/100 10 RZGO-AE-033/210 10 RZGO-TER-010/100 RZGO-TER-010/100/I 40 RZGO-TER-010/210 40 RZGO-TER-010/210/I 40 RZGO-TER-010/32 40 RZGO-TER-033/100 RZGO-TER-033/315 40 直動式溢流閥 RZMA-A-010/250/M 21 RZMA-A-030/180/M/7 21 RZMO-A-010/100 RZMO-A-010/210 RZMO-A-010/210/18 20 RZMO-A-010/315 RZMO-A-010/315/18 RZMO-A-010/50 RZMO-A-010/50/18 RZMO-A-030/100 20 RZMO-A-030/210 20 RZMO-A-030/210/18 RZMO-A-030/315 RZMO-AE-010/315 10 RZMO-AE-030/100 40 RZMO-P1-010/100/18/MC 20 RZMO-P1-010/210 RZMO-P3-010/100/AM1NSA RZMO-P3-010/100/I/AM1NSA RZMO-P3-010/210/I/AM1NS RZMO-P3-010/210/I/AMINSA RZMO-TER-010/100 40 RZMO-TER-010/315 40 RZMO-TER-010/315/I 40 RZMO-TER-030/210 40 RZMO-TER-030/315/I 40 DKZOR-TE-171-S5 40
AGMZA-A-10/250/M AGMZA-A-10/250/PA-M AGMZA-A-10/80/PA-GK 21 AGMZA-A-10/80/PA-GK/24 21 AGMZA-A-20/250/M AGMZO-A-10/100 AGMZO-A-10/100/Y 20 AGMZO-A-10/210 AGMZO-A-10/210/18 AGMZO-A-10/210/E AGMZO-A-10/210/Y AGMZO-A-10/315 AGMZO-A-10/315/E 20 AGMZO-A-10/315/Y AGMZO-A-20/210 AGMZO-A-20/315 AGMZO-A-20/315/Y AGMZO-A-32/315 AGMZO-AE-10/210 10 AGMZO-AE-10/315 10 AGMZO-AE-20/315/Y 10 AGMZO-AE-32/315 AGMZO-TER-010/210/I AGMZO-TER-10/100/I AGMZO-TER-10/210 AGMZO-TER-10/315/Y 40 AGMZO-TER-20/210 AGMZO-TER-20/315/Y 40 AGMZO-TERS-PS-010/210/I 先導(dǎo)式減壓閥 AGRCZO-A-10/100/P 10 AGRCZO-A-10/210 10 AGRCZO-A-10/210/P 10 AGRCZO-A-10/315 10 AGRCZO-A-10/315/P 10 AGRCZO-A-20/210/R 10 AGRCZO-AE-10/210 10 AGRCZO-AE-10/50 10 AGRCZO-AE-20/210/P AGRCZO-TER-10/315 40 AGRZO-A-10/100/P AGRZO-A-10/210/P AGRZO-A-10/210/R AGRZO-A-10/315 AGRZO-A-20/210/18 AGMZO-TER-10/210/EI AGMZO-TER-10/210/I AGMZO-TER-10/315 40 AGMZO-TER-10/315/I 40/PE KZGO-A-031/210 20 KZGO-A-031/315 HZGO-A-031/100 31 HZGO-A-031/210 31 HZGO-A-031/315 31 HZGO-A-031/315/18 31 HZMO-A-030/210 40
上海*