力士樂減壓閥的構(gòu)造類型很多,以往常見的有薄膜式、內(nèi)彈簧活塞式等。減壓閥的基本作用原理是靠閥內(nèi)流道對水流的局部阻力降低水壓,水壓降的范圍由連接閥瓣的薄膜或活塞兩側(cè)的進出口水壓差自動調(diào)節(jié)。
德國REXROTH力士樂減壓閥是通過調(diào)節(jié),將進口壓力減至某一需要的出口壓力,并依靠介質(zhì)本身的能量,使出口壓力自動保持穩(wěn)定的閥門。從流體力學(xué)的觀點看,REXROTH力士樂減壓閥是一個局部阻力可以變化的節(jié)流元件,即通過改變節(jié)流面積,使流速及流體的動能改變,造成不同的壓力損失,從而達到減壓的目的。然后依靠控制與調(diào)節(jié)系統(tǒng)的調(diào)節(jié),使閥后壓力的波動與彈簧力相平衡,使閥后壓力在一定的誤差范圍內(nèi)保持恒定。
Rexroth直動式減壓閥為直動式帶溢流閥的減壓閥(簡稱溢流減壓閥)。壓力為P1的壓縮空氣,由左端輸入經(jīng)閥口節(jié)流后,壓力降為P2輸出。P2的大小可由調(diào)壓彈簧進行調(diào)節(jié)。順時針旋轉(zhuǎn)旋鈕,壓縮彈簧及膜片使閥芯下移,增大閥口的開度使P2增大。若反時針旋轉(zhuǎn)旋鈕,閥口的開度減小,P2隨之減小。
若P1瞬時升高,P2將隨之升高,使膜片氣室內(nèi)壓力升高,在膜片上產(chǎn)生的推力相應(yīng)增大,此推力破壞了原來力的平衡,使膜片向上移動,有少部分氣流經(jīng)溢流孔、排氣孔排出。在膜片上移的同時,因復(fù)位彈簧的作用,使閥芯8也向上移動,關(guān)小進氣閥口,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、膜片下移,閥芯隨之下移,進氣閥口開大,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。使調(diào)節(jié)彈簧放松,氣體作用在膜片上的推力大于調(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。再旋轉(zhuǎn)旋鈕,進氣閥芯的頂端與溢流閥座4將脫開,膜片氣室中的壓縮空氣便經(jīng)溢流孔、排氣孔11排出,使閥處于無輸出狀態(tài)。
力士樂DRHD/ZDRHD直動式減壓閥具體表現(xiàn)為有以下特點:
● 規(guī)格6
● 安裝面按DIN 24340 A型和ISO 4401
● 在各個單元中有夾緊壓力調(diào)節(jié)和監(jiān)控
● 夾緊和監(jiān)控壓力的共同調(diào)節(jié)
● 根據(jù)客戶需要,可在內(nèi)部或外部進行壓力監(jiān)控
● zui小可調(diào)監(jiān)測和/或次級壓力的限制
力士樂DRHD/ZDRHD直動式減壓閥常見型號有:
DRHD6DP1-4X/200-25K14 DRHD6DP1-4X/200-25XK14 DRHD6DP1-4X/200-50YK14
DRHD6DP1-4X/200-25YK14 DRHD6DP1-4X/200-50K14 DRHD6DP1-4X/200-50XK14
DRHD6DP1-4X/200-100K14 DRHD6DP1-4X/200-100XK14 DRHD6DP2-4X/200-100YK14
DRHD6DP1-4X/200-100YK14 DRHD6DP2-4X/200-25K14 DRHD6DP2-4X/200-25XK14
DRHD6DP2-4X/200-25YK14 DRHD6DP2-4X/200-50K14 DRHD6DP2-4X/200-50XK14
DRHD6DP2-4X/200-100K14 DRHD6DP2-4X/200-100XK14 DRHD6DP2-4X/200-50YK14
DRHD6DP3-4X/200-25YK14 DRHD6DP3-4X/200-50K14 DRHD6DP3-4X/200-50XK14
DRHD6DP3-4X/200-100K14 DRHD6DP3-4X/200-100XK14 DRHD6DP3-4X/200-50YK14
DRHD6DP3-4X/200-100YK14 DRHD6DA1-4X/200-25K14 DRHD6DA1-4X/200-25XK14
DRHD6DA1-4X/200-25YK14 DRHD6DA1-4X/200-50K14 DRHD6DA1-4X/200-50XK14
DRHD6DA1-4X/200-100K14 DRHD6DA1-4X/200-100XK14 DRHD6DA1-4X/200-50YK14
DRHD6DA1-4X/200-100YK14 DRHD6DA2-4X/200-25K14 DRHD6DA2-4X/200-25XK14
DRHD6DA2-4X/200-25YK14 DRHD6DA2-4X/200-50K14 DRHD6DA2-4X/200-50XK14
DRHD6DA2-4X/200-100K14 DRHD6DA2-4X/200-100XK14 DRHD6DA2-4X/200-100YK14
DRHD6DA3-4X/200-25K14 DRHD6DA3-4X/200-25XK14 DRHD6DA2-4X/200-50YK14
DRHD6DA3-4X/200-25YK14 DRHD6DA3-4X/200-50K14 DRHD6DA3-4X/200-50XK14
DRHD6DA3-4X/200-100K14 DRHD6DA3-4X/200-100XK14 DRHD6DA3-4X/200-50YK14
DRHD6DA3-4X/200-100YK14 DRHD6DB1-4X/200-25K14 DRHD6DB1-4X/200-25XK14
DRHD6DB1-4X/200-25YK14 DRHD6DB1-4X/200-50K14 DRHD6DB1-4X/200-50XK14
DRHD6DB1-4X/200-100K14 DRHD6DB1-4X/200-100XK14 DRHD6DB1-4X/200-50YK14
DRHD6DB1-4X/200-100YK14 DRHD6DB2-4X/200-25K14 DRHD6DB2-4X/200-25XK14
DRHD6DB2-4X/200-25YK14 DRHD6DB2-4X/200-50K14 DRHD6DB2-4X/200-50XK14
力士樂ZDRHD直動式減壓閥
DRHD6DB2-4X/200-100K14 DRHD6DB2-4X/200-100XK14 DRHD6DB2-4X/200-100YK14
DRHD6DB3-4X/200-25K14 DRHD6DB3-4X/200-25XK14 DRHD6DB2-4X/200-50YK14
DRHD6DB3-4X/200-25YK14 DRHD6DB3-4X/200-50K14 DRHD6DB3-4X/200-50XK14
DRHD6DB3-4X/200-100K14 DRHD6DB3-4X/200-100XK14 DRHD6DB3-4X/200-50YK14
DRHD6DB3-4X/200-100YK14 ZDRHD6DP1-4X/200-25K14 ZDRHD6DP1-4X/200-25XK14
力士樂ZDRHD直動式減壓閥
ZDRHD6DP1-4X/200-25YK14 ZDRHD6DP1-4X/200-50K14 ZDRHD6DP1-4X/200-50XK14
ZDRHD6DP1-4X/200-100K14 ZDRHD6DP1-4X/200-100XK14 ZDRHD6DP1-4X/200-50YK14
ZDRHD6DP1-4X/200-100YK14 ZDRHD6DP2-4X/200-25K14 ZDRHD6DP2-4X/200-25XK14
ZDRHD6DP2-4X/200-25YK14 ZDRHD6DP2-4X/200-50K14 ZDRHD6DP2-4X/200-50XK14
ZDRHD6DP2-4X/200-100K14 ZDRHD6DP2-4X/200-100XK14 ZDRHD6DP2-4X/200-100YK14
ZDRHD6DP3-4X/200-25K14 ZDRHD6DP3-4X/200-25XK14 ZDRHD6DP2-4X/200-50YK14
力士樂ZDRHD直動式減壓閥
ZDRHD6DP3-4X/200-25YK14 ZDRHD6DP3-4X/200-50K14 ZDRHD6DP3-4X/200-50XK14
ZDRHD6DP3-4X/200-100K14 ZDRHD6DP3-4X/200-100XK14 ZDRHD6DP3-4X/200-50YK14
ZDRHD6DP3-4X/200-100YK14 ZDRHD6DA1-4X/200-25K14 ZDRHD6DA1-4X/200-25XK14
ZDRHD6DA1-4X/200-25YK14 ZDRHD6DA1-4X/200-50K14 ZDRHD6DA1-4X/200-50XK14
ZDRHD6DA1-4X/200-100K14 ZDRHD6DA1-4X/200-100XK14 ZDRHD6DA1-4X/200-50YK14
ZDRHD6DA1-4X/200-100YK14 ZDRHD6DA2-4X/200-25K14 ZDRHD6DA2-4X/200-25XK14
ZDRHD6DA2-4X/200-25YK14 ZDRHD6DA2-4X/200-50K14 ZDRHD6DA2-4X/200-50XK14
ZDRHD6DA2-4X/200-100K14 ZDRHD6DA2-4X/200-100XK14 ZDRHD6DA2-4X/200-100YK14
ZDRHD6DA3-4X/200-25K14 ZDRHD6DA3-4X/200-25XK14 ZDRHD6DA2-4X/200-50YK14
ZDRHD6DA3-4X/200-25YK14 ZDRHD6DA3-4X/200-50K14 ZDRHD6DA3-4X/200-50XK14
ZDRHD6DA3-4X/200-100K14 ZDRHD6DA3-4X/200-100XK14 ZDRHD6DA3-4X/200-50YK14
ZDRHD6DA3-4X/200-100YK14 ZDRHD6DB1-4X/200-25K14 ZDRHD6DB1-4X/200-25XK14
ZDRHD6DB1-4X/200-25YK14 ZDRHD6DB1-4X/200-50K14 ZDRHD6DB1-4X/200-50XK14
ZDRHD6DB1-4X/200-100K14 ZDRHD6DB1-4X/200-100XK14 ZDRHD6DB1-4X/200-50YK14
ZDRHD6DB1-4X/200-100YK14 ZDRHD6DB2-4X/200-25K14 ZDRHD6DB2-4X/200-25XK14
力士樂ZDRHD直動式減壓閥
ZDRHD6DB2-4X/200-25YK14 ZDRHD6DB2-4X/200-50K14 ZDRHD6DB2-4X/200-50XK14
ZDRHD6DB2-4X/200-100K14 ZDRHD6DB2-4X/200-100XK14 ZDRHD6DB2-4X/200-100YK14
ZDRHD6DB3-4X/200-25K14 ZDRHD6DB3-4X/200-25XK14 ZDRHD6DB2-4X/200-50YK14
ZDRHD6DB3-4X/200-25YK14 ZDRHD6DB3-4X/200-50K14 ZDRHD6DB3-4X/200-50XK14
ZDRHD6DB3-4X/200-100K14 ZDRHD6DB3-4X/200-100XK14 ZDRHD6DB3-4X/200-50YK14
ZDRHD6DB3-4X/200-100YK14 DRHD6DP1-4X/200-100YK14
力士樂ZDRHD直動式減壓閥訂購流程如下:
1、客戶確認(rèn)所需采購產(chǎn)品型號發(fā)詢價單傳真
2、我方會根據(jù)詢價單型號查詢價格以及交貨期,擬一份詳細正規(guī)報價單
3、客戶收到報價單并確認(rèn)型號無誤后訂購產(chǎn)品
4、報價單負責(zé)人根據(jù)客戶提供型號以及數(shù)量擬份銷售合同
5、客戶收到合同查閱同意后蓋章回傳并按照合同銷售金額匯款到公司開戶行
6、我公司財務(wù)查到款后,業(yè)務(wù)員安排發(fā)貨并通知客戶跟蹤運單