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先导式溢流阀 1/16DB; DBW RC 25 802/03.03 3 H6 08 8/ 98 + H 60 89 /9 8 337 Industrial Hydraulics Electric Drives and Controls Linear Motion and Assembly Technologies Pneumatics Service Automation Mobile Hydraulics 型號DBW 20 B2-5X/315-6EG24N9K4帶連接插頭 (需單獨訂貨)和型號...

先导式溢流阀
1/16DB; DBW RC 25 802/03.03 3 H6 08 8/ 98 + H 60 89 /9 8 337 Industrial Hydraulics Electric Drives and Controls Linear Motion and Assembly Technologies Pneumatics Service Automation Mobile Hydraulics 型號DBW 20 B2-5X/315-6EG24N9K4帶連接插頭 (需單獨訂貨)和型號DB20 -2-5X/315... 目錄 特征 版權所有。沒有博世力士樂公司的授權,該文檔的任何部分都不許以任何方式翻版、編輯、复制或使用電子系統 進行傳播。侵權將承擔損害賠償的責任。 該文檔精心編制,所有內容經過嚴格校對,以保証准确性。 由于產品一直處于發展中,我們必須保留修訂的權利,對于因此而產生的任何不完整或不准确描述, 公司不承擔責任。 RC 25 802/03.03 代替:05.02 訂貨代碼:R900772641b 先導式溢流閥 DB;DBW型 通徑 10 和 32 5X 系列 最高工作壓力 350 bar 最高流量 650 L/min © 2003 by Bosch Rexroth AG, Industrial Hydraulics, D-97813 Lohr am Main 內容 頁碼 特征 1 訂貨型號 2, 3 优選型號 3 連接插頭 4 功能說明 4...7 剖面圖 7, 8 圖形符號 7 技術數據 9, 10 一般準則 10 特性曲線 11, 12 元件尺寸 12 ... 16 - 用於底板安裝 安裝面按DIN 24 340 E型 ISO 6264–AR–06–2–A(通徑 10) ISO 6264–AS–08–2–A(通徑 25) ISO 6264–AT–10–2–A(通徑 25) 和CETOP-RP 121 H, 底板按樣本活頁RE 45 064(須單獨訂貨) - 用於螺紋連接 - 用於集成塊安裝 - 4種調節元件 ‧旋鈕 ‧帶護罩的六角套筒螺絲 ‧帶銷有刻度旋鈕 ‧不帶銷有帶刻度旋鈕 - 5種壓力範圍 - 借助頂裝方向閥電磁操作卸荷 - 大功率電磁鐵 - 防爆電磁鐵(請諮詢) - 帶切換時間延遲,可選擇(僅DBW型) - 其他資料 先導閥 ‧大功率方向閥 RC 23 178 和 RC 22 058 底板 RC 45 064 B1_0337-0352 7/22/04, 2:43 AM1 2/16RC 25 802/03.03 DB; DBW 3 DB 5X Without directional valve = No code With built-on directional = W Pilot operated valve (complete) = No code Pilot operated valve without main spool assembly (do not enter nom. size) = C Pilot operated valve with main spool assembly (enter valve sizes 10 or 30) = C Pilot operated valve without main spool assembly for subplate mounting = T 1) (do not enter nominal size) Nom. size Ordering details Subplates Threaded connections “No code” “G” 10 = 10 = 10 (G 1/2) 16 = 15 (G 3/4) 25 = 20 = 20 (G 1) 25 = 25 (G 1 1/4) 32 = 30 = 30 (G 1 1/2) A B P T a b Normally closed = A 2) A B P T a b Normally open = B 2) For subplate mounting = No code For threaded connections = G Adjustment element Rotary knob = 1 Sleeve with hexagon and protective cap = 2 Lockable rotary knob with scale = 3 3) Rotary knob with scale = 7 With main spool Ø 24 mm (all nominal sizes) = – With main spool Ø 28 mm (only for NS 32) = N Series 50 to 59 (50 to 59: unchanged installation and connection dimensions) = 5X Settable pressure up to 50 bar = 50 Settable pressure up to 100 bar = 100 Settable pressure up to 200 bar = 200 Settable pressure up to 315 bar = 315 Settable pressure up to 350 bar = 350 1) DBT/DBWT are the same as DBC/DBWC, except that the central drilling is closed 2) Ordering details only required for the version with built-on directional valve (DBW). 3) H-key with Material No. R900008158 is included within the scope of supply. 4) Catalogue sheets RE 23 178 (directional spool valve) or RE 22 058 (directional poppet valve) 5) Plug-in connectors must be ordered separately (see page 4). 6) Ordering details only required for the version with built-on directional valve and switching shock damping (DBW…/ …S…). 7) Only possible up to pressure stage 315 bar 8) Hyphen „–“ only required for the versions with built-on directional valve (DBW), without for „U“ or „S“. 338 訂貨型號 不帶方向閥 = 無代號 帶頂裝方向閥 用於底板安裝 =無代號 用於螺紋連接 先導式閥(整體) = 無代號 無主閥插件的先導閥(不說明通徑) 帶主閥插件的先導閥(注明通徑10或30) 無主閥插件的先導閥(用於有底板安裝) (不說明通徑) 調節元件 旋鈕 帶護罩的六角套筒螺絲 帶鎖有刻度旋鈕 不帶鎖有刻度旋鈕 主閥芯直徑Ø24mm(僅用於通徑10, 16, 25和型號DBC 30) 主閥芯直徑Ø8mm(僅用於通徑32;不用於型號DBC 30) 系列50至59(50至59:安裝和連接尺寸保持不變) =5X 設定壓力 50 bar 設定壓力 100 bar 設定壓力 200 bar 設定壓力 315bar 設定壓力 350 bar 1)除中心鑽孔封閉外,DBT/DBWT型和DBC/DBWC相同。 2)規定的訂貨型號僅用於帶頂裝方向閥(DBW)型。 3)代碼R900008158的H-型鎖鑰匙包含在供貨清單內。 4)樣本活頁RC 23 178(方向滑閥)或RC 22 058(方向閥) 5)連接插頭必須單獨訂貨(見第4頁) 6)規定的訂貨型號僅用於帶頂裝方向閥、帶切換時間延遲 (DBW…/…S…)型 7)只能用於壓力級別 315 bar 8)規定的訂貨型號僅用於帶頂裝方向閥(DBW)型,不配 „U”或„S”型。 通徑 訂貨型號 底板安裝 螺紋連接 “無代號” “G” 常閉 常開 B1_0337-0352 7/22/04, 2:43 AM2 3/16DB; DBW RC 25 802/03.03 3 Further details in clear text Design tested No code = Without design testing E = Safety valve with design testing to DGRL 97/23/EG No code = NBR seals V = FKM seals (other seals on request) Attention! The compatibility of the seals and pressure fluid has to be taken into account! R12 6) = Orifice Ø 1.2 mm in port B of the directional valve Electrical connection K4 2; 5) = Without plug-in connector, individual connection with component plug DIN EN 175 301-803 No code = Without hand override N 2) = With hand override N9 2) = With protected hand override (standard) G24 2) = 24 V DC W230 2) = 230 V AC 50/60 Hz No code = Without directional valve 6E 2) = With directional spool valve (high performance valve 4)) – settable pressure up to 350 bar 6SM2) = With directional poppet valve (high performance valve 4)) – settable pressure up to 350 bar No code = Without switching shock damping S = With switching shock damping (only with version DBW) No code = Standard version U 7) = Valve for minimum opening pressure (not for version without main spool assembly and not suitable for cross-line relief!) Pilot oil supply and pilot oil drain – 8) = Internal pilot oil supply and pilot oil drain X = External pilot oil supply, internal pilot oil drain Also see Y = Internal pilot oil supply, external pilot oil drain symbols XY = External pilot oil supply and pilot oil drain on page 7 Preferred types (readily available) * Type Material No. DB 10-2-5X/50 R900590645 DB 10-2-5X/100 R900590646 DB 10-2-5X/200 R900587772 DB 10-2-5X/315 R900590334 DB 10-2-5X/350 R900597992 DB 20 -2-5X/50 R900597212 DB 20 -2-5X/100 R900589433 DB 20 -2-5X/200 R900590768 DB 20 -2-5X/315 R900593530 DB 20 -2-5X/350 R900590618 DB 20 G2-5X/50 R900590328 DB 20 G2-5X/200 R900597307 DB 20 G2-5X/315 R900597747 DB 20 G2-5X/350 R900599232 DB 20 G2-4X/100 W65 R900407106 DB 30-2-5X/50 R900593564 DB 30-2-5X/100 R900594677 DB 30-2-5X/200 R900588131 DB 30-2-5X/315 R900591128 DB 30-2-5X/350 R900504902 DB 30 G2-5X/50 R900598338 DB 30 G2-5X/100 R900502598 DB 30 G2-5X/200 R900500719 DB 30 G2-5X/315 R900594426 DB 30 G2-5X/350 R900535222 Type Material No. Further preferred types and standard components can be found in the EPS (Standard Price List). 339 优選型號(可即刻供貨) 訂貨代碼型號 訂貨代碼型號 優選型號和標準閥,可短期內供貨 見價格 关于同志近三年现实表现材料材料类招标技术评分表图表与交易pdf视力表打印pdf用图表说话 pdf EPS(標準價格表) 其它細節用文字說明 通過測試 無代號 = 無設計測試 按 DGRL 97/23/EG 指導而通過設計測試的安全閥 無代號 = 丁 橡膠密封 氟橡膠密封 (其它密封按 要求 对教师党员的评价套管和固井爆破片与爆破装置仓库管理基本要求三甲医院都需要复审吗 ) 注意! 必須考慮密封和 流体介質的協調性! 方向閥B口中節流孔直徑Ø1.2 mm 電氣連接方式 帶有插頭DIN EN 175 301-803的單獨接口不帶接線座 無代號 = 不帶手動應急操作 帶有手動應急操作 帶有隱式手動應急操作(標準) 24 V 直流 230 V 交流 50/60 Hz 無代號 = 不帶方向閥 帶方向閥(大功率閥4))-設定壓力至350 bar 帶方向滑閥(大功率閥4))-設定壓力至350 bar 無代號 = 不帶切換時間延遲 帶切換時間延遲(僅用於DBW型) 無代號 = 標準閥 用於最低開啟壓力的閥 (不用於無主閥插件型,且不適用於跨管溢流!) 控制油供給及回油管路 控制油內供外排 控制油外供外排 控制油內供外排 控制油外供外排 訂貨型號 圖型符號 見第7頁 通過測試 無代號 = 無設計測試 按 DGRL97/23/EG指導而通過設計測試的安全閥 B1_0337-0352 7/22/04, 2:43 AM3 4/16RC 25 802/03.03 DB; DBW 3 a Grey R900074683 – – – a/b Black – R900057292 R900313933 R900310995 With indicator light and Z-diode protective circuit 24 V With rectifier 12 … 240 V With indicator light 12 … 240 V Valve side Colour Material No. For further plug-in connectors, see RE 08 006 Without circuitry Ordering details for design tested pressure relief valves type DB(W)../..E, series 5X Design tested to directive 97/23/EG (pressure component directive) 1) Hyphen „–“ only required for the version with built-on directional valve (DBW) 2) External pilot oil supply „X“ is not possible ! Component NS Designation indentification 2 3 4 5 6 10 DB 10 –5X/ E TÜV.SV. –851.12.F.G.p 1 2 3 4 5 6 DBW 10 –5X/ 6 E TÜV.SV. –851.12.F.G.p 2 3 4 5 6 25 DB 20 –5X/ E TÜV.SV. –852.22.F.G.p 1 2 3 4 5 6 DBW 20 –5X/ 6 E TÜV.SV. –852.22.F.G.p 2 3 4 5 6 32 DB 30 N5X/ E TÜV.SV. –853.22.F.G.p 1 2 3 4 5 6 DBW 30 N5X/ 6 E TÜV.SV. –853.22.F.G.p 170 130 30 to 60 230 200 61 to 110 230 200 111 to 210 230 200 211 to 350 250 180 30 to 60 270 210 61 to 110 420 320 111 to 210 450 400 211 to 350 600 225 30 to 60 600 340 61 to 110 650 540 111 to 210 700 580 211 to 350 Set response over pressure p in bar * * * Important notes: • Before ordering a design tested pressure relief valve, checks have to be carried out to ensure that at the required response pressure p the maximum permissible flow qVmax of the safety valve is greater than the maximum possible flow from the system! The appropriate regulations must be taken into account. • The return lines (ports T and Y) from safety valves must vent in a safe manner. Fluid must not be able to gather in a venting system. • The removal of the seal from a safety valve invalidates the DGRL approval! • The requirements of the pressure component directive 97/23/EG and the AD2000 information sheet A2 must be taken into account ! Directional valve, normally closed = A Directional valve, normally open = B For subplate mounting = No code for threaded connections = G Adjustment element hand wheel = 1 (sealed pressure adjuster, unloading or adjustments in the lower settable range is possible) Adjustment element with sealed protective cap = 2 (no adjustment or unloading is possible) The pressure details containined within the type code are to be entered by the customer, e.g. = 150 Pressure adjustments ≥ 30 bar and in 5 bar steps are possible Internal pilot oil supply and pilot oil drain = – 1)2) Recommended: Internal pilot oil supply, external pilot oil drain = Y 2) Electrical data ordering details (see page 3) e.g. = EG24N9K4 NBR seals = No code FKM seals = V Details are completed by the factory 2 1 3 4 5 6 * Max. permissible flow qVmax in L/min with pilot oil drain external „Y“ internal „–“ 340 連接插頭按DIN EN 175 301-803和ISO 4400,針對„K4”插座 更多的插頭資料 見RE 08 006 灰 黑 訂貨代碼 閥側 顏色 不帶電路圖 帶指示燈 帶整流器 帶指示燈和 Z-二極管保護電路 訂貨型號:經結構試驗的DB(W)../..E,5X系列溢流閥 最大容許流量 qVmax 以 L/min 使用的先導油 排出方式 設定 響應壓力 bar 外排 “Y” 內排 “-” 元件代號通徑 型號 方向閥,常閉 方向閥,常開 用於底板安裝 用於螺紋連接 例如 電器數據的訂貨型號(見第3頁)例如 丁 橡膠密封件 氟橡膠密封件 1) 規定的訂貨型號僅用於帶頂裝方向閥(DBW)型。 2) 不可能外部先導供油„X”! 無代號 調整元件手輪 (密封的壓力調整器,卸載或在較低的可設 定範圍內調整是可能的) 帶密封保護蓋的調整元件 (不可調整和卸載是可能的) 由用戶給出在型號中的壓力。 壓力調整 ≥ 30 bar和5 bar間隔是可能的。 由工廠填入 內供,內排 推荐內供,外排 重要注意: ‧在訂購一台經過設計認証的溢流閥之 前,必須進行檢查,來保証在要求的 響應壓力p下 安全閥的最大允許流量qVmax大於來自 系統的最大可能流量。 必須遵守相應的規則! ‧安全閥的回油管(油口T和Y)必須以安全 的方式排放,油液一定不能匯集到一個 排放管路中。 ‧拆下安全閥的印封,DGRL的認可無 效! ‧必須考慮壓力元件指南和樣本AD2000- A2的要求! 按 97/23 EG 指導而通過設計測試(壓力元件指導) 無代號 B1_0337-0352 7/22/04, 2:43 AM4 5/16DB; DBW RC 25 802/03.03 3 0 0 50 100 150 200 250 35 30 20 10 DB(W) 10.. - 5X/...E 15 25 pT in bar qVmax in L/min 350 210 110 60 30 pA in bar 2 11 3 1 6 6,5 4 3 5 6 21 130 0 0 100 200 300 400 500 35 30 20 10 350 210 110 60 30 180 320 DB(W) 20 - 5X/...E 210 15 25 pA in bar pT in bar qVmax in L/min 6 6,5 1 2 3 21 21,5 4 6 11 11,5 8 5 7 The relationship of the maximum permissible flow qVmax and the back pressure pT in the return line with internal pilot oil return For an explanation of the diagram see page 6 Char. curves Response pressure pA in bar 1 30 2 60 3 65 4 110 5 210 6 350 Characteristic curves for intermediate values can be obtained by interpolation. Char. curves Response pressure pA in bar 1 30 2 60 3 65 4 110 5 115 6 210 7 215 8 350 Characteristic curves for intermediate values can be obtained by interpolation. 按照DGRL 97/23/EG,由於流量的關係,系統壓力必須不能 高於設定響應壓力(見元件號)的10%。 必須考慮使用注意事項! 元件號中給出的響應值是制造廠在2 L/min流量下設定的。 必須不能超過在元件號中給出的最大允許流量qVmax。(=在 元件號中„G”位置中的數值,見4頁)。 適用: - 先導油“外排”(= Y,在訂貨代號中),在先導回油管中沒 有背壓,在回油管(油口 T)中允許的背壓 < 15 bar - 先導油“內排”(= 無代號,在訂貨代號中),允許的最大流 量只有在回油管(油口 T)無背壓下才是容許的。 採用先導油內排,系統壓力隨流量加大而增加了回油管(油口 T)內的背壓值。(考慮樣本AD2000-A2中的要點6.3) 由於流量的關係,要保証系統壓力不能高於設定響應壓力的 10%,允許的流量必須相對於回油(油口 T)管中的背壓而減 小(見下面的圖)。 允許的最大流量qVmax和回油管中背壓pT的關係(採用先導油內排) 對於中間值的特性曲線能夠通過插 值法來獲得。 響應壓力pA 在 bar 特性曲線 對於中間值的特性曲線能夠通過插 值法來獲得。 響應壓力pA 在 bar 特性曲線 341 安全指南,針對經過設計認証的安全閥DB.(W)10/20/30-5X/...(Y), 按照壓力元件指南DGRL 97/23/EG 關於曲線圖的解釋見6頁 B1_0337-0352 7/22/04, 2:43 AM5 6/16RC 25 802/03.03 DB; DBW 3 0 100 200 DB(W) 30 - 5X/...E qVmax in L/min0 35 30 20 10 15 25 PT in bar 5 43 21 300 400 500 580 80 bar -Kennlinie 250 bar -Kennlinie 12 8 1 600 350 210 110 60 30 PA in bar 250 80 225 6 3 340 6,5 6 11,511 540 7 8 21 21,5 Char. curves Char. curves pA = Response pressure in bar pT = Maximum permissible back pressure in the return line (port T) (The sum of all of the possible back pressures; also see the AD2000 - A2 information sheet) pTmax = 10% x pA (at qV = 0) to DGRL 97/23/EG qVmax = Maximum permissible flow in L/min An explanation of the diagram using a type DB(W) 30...5X/...E as an example Example 1 Given: The flow for which safety has to be provided from the system/accumulator qVmax = 300 L/min Safety valve set response pressure pA = 250 bar Required: pT Solution: See the arrows within the diagram above (300L/min, 250bar) pT ≈ 12bar Example 2 Given: The flow for which safety has to be provided from the system/accumulator qVmax = 300 L/min Safety valve set response pressure pA = 80 bar Required: pT Solution: See the arrows within the diagram above (300L/min, 80bar) pT ≈ 1bar Char. curves Repsonse pressure pA in bar 1 30 2 60 3 65 4 110 5 115 6 210 7 215 8 350 Characteristic curves for intermediate values can be obtained by interpolation. 安全閥,按照壓力元件指南DGRL 97/23/EG 需要: 342 允許的最大流量qVmax和回油管中背壓pT的關係(採用先導油內排) 對於中間值的特性曲線能夠通過插 值法來獲得。 響應壓力pA 在 bar 特性曲線 特性曲線 特性曲線 響應壓力 bar 允許的最大流量,L/min 在回油(油口 T)管中允許的最高背壓 (所有可能的背壓之和,也見樣本AD2000-A2) 曲線圖說明,用型號DB(W)30...5X/...E 作為例子 舉例1 給出: 為了安全必須從系統/蓄能器提供的流量qVmax = 300 L/min 安全閥設定響應壓力 pA = 250 bar 在 按 解決方案: 見圖中的箭頭(300 L/min,250 bar) pT = 12 bar 舉例2 需要: 給出: 為了安全必須從系統/蓄能器提供的流量qVmax = 300 L/min 安全閥設定響應壓力 pA = 80 bar 解決方案: 見圖中的箭頭(300 L/min,80 bar) pT = 12 bar B1_0337-0352 7/22/04, 2:43 AM6 7/16DB; DBW RC 25 802/03.03 3 P TX 11 14 8 12 9 2 5 7 1 6 4 15 10 13 3 P T P T X P T Y P T YX P T A B P T a b A B P T a b P T A B P T a b A B P T a b X P T A B P T a b A B P T a b Y P T A B P T a b A B P T a b X Y Type DB…XY…Type DB…X…Type DB…–… Type DB…Y… Symbols Type DBW…XY…Type DBW…X…Type DBW…–… Type DBW…Y… Normally closed Normally open Normally closed Normally open Normally closed Normally open Normally closed Normally open 功能說明、剖面圖:DB...型 概述: DB 和DBW型壓力控制閥是先導式溢流閥。 它們用於限制(DB型),或用電磁鐵限制及卸荷系統壓力 (DBW型)。 該溢流閥(DB型)的組成主要包括帶主閥芯插件(3)的主閥(1) 和帶壓力調節元件的先導閥(2)。 DB型溢流閥 油路A中的壓力作用於主閥芯(3)上。同時,壓力經帶節流孔 (4)和(5)的控制通路(6)和(7),作用在主閥芯(3)的彈簧加載 側及先導閥(2)的球(8)上。如果A口的壓力超過彈簧(9)的設 定值,球(8)克服彈簧力(9)而使先導閥開啟。 該信號經控制通道(10)和(6)從A口內部獲取。主閥芯(3)彈 簧加載側的油液經過控制通路(7)、節流孔(11)和球閥(8)流 入彈簧腔(12)。對DB...-5X/..-..型它由控制通路(13)內部引入 油箱,而對DB..5X/..Y..型經控制通路(14)它由外部引入油 箱。節流孔(4)和(5)在主閥芯(3)兩端產生壓降,因此A到B 連接通道被打開。油液由A口流向B口,而設定工作壓力保持 不變。 溢流閥借助油口X(15)可對不同壓力(二級壓力)卸荷或切換。 343 圖形符號 型號 型號 型號 型號 常閉 常閉 常開 常開 型號 型號 常閉 常開 型號 型號 常閉 常開 B1_0337-0352 7/22/04, 2:43 AM7 8/16RC 25 802/03.03 DB; DBW 3 16 18 17 2 B T (P) B1 B2 TP B 1 2 P TX 2 5 7 1 6 4 15 10 13 3 B T (P) 16 A Pressure relief valve type DBW The function of this valve is basically the same as the valve type DB. The unloading of the main spool (3) however is achieved by operating the built-on directional spool valve (16). The degree of damping (unloading shock) is determined by the size of the orifice (18). The Ø 1.2 mm orifice is recommended (ordering detail..R12..). Pressure relief valve with switching shock damping (sandwich plate), type DBW…/..S6...R12 With a switching shock damping valve (17) the opening of the connection from B2 to B1 is delayed. Pressure peaks and acoustic unloading shocks in the return line are thereby avoided. It is fitted between the pilot control valve (2) and the directional valve (16). 顯示:方向閥開啟 功能說明,剖面圖:DBW...型 344 DBW型溢流閥 原則上,該閥功能與DB型閥相同。借助於頂裝方向閥(16), 可實現主閥芯(3)卸荷。 帶切換時間延遲 (𠋥加式),DBW.../...S..R12型 帶切換時間延遲閥(17)使B2至B1的接通延時開啟。因此可 避免回油管路中的壓力峰值及釋壓衝擊。切換時間延遲閥 安裝在先導閥(2)和方向控制閥(16)之間。 衰減(釋壓衝擊)的程度由節流孔(18)的尺寸決定。直徑 Ø1.2mm的節流孔作為標準型安裝。(訂貨型號…R12…)。 B1_0337-0352 7/22/04, 2:43 AM8 9/16DB; DBW RC 25 802/03.03 3 Hydraulic Maximum operating pressure P bar 350 at ports T bar 315 Max. back pressure: Port Y DB.. bar 315 bar 210 For DC solenoids Anschluss Y(DBW../..Y..) bzw. Anschluss T(DBW../..) bar 160 for AC solenoids Settable pressure Minimum bar Flow dependent (see charateristic curves on page 11) Maximum bar 50; 100; 200; 315; 350 Maximum flow DB. 10 DB. 15 DB. 20 DB. 25 DB. 30 Subplate mounting L/min 250 – 500 – 650 Threaded connections L/min 250 500 500 500 650 Pressure fluid Mineral oil (HL, HLP) to DIN 51 524 1); Fast bio-degradable pressure fluids to VDMA 24 568 (also see RE 90 221); HETG (rape seed oil) 1); HEPG (polyglycole) 2); HEES (synthetic ester) 2); other pressure fluids on request Pressure fluid temperture range °C – 30 to + 80 for NBR seals °C – 15 to + 80 for FKM seals Viscosity range mm2/s 10 to 800 ISO code cleanliness class Maximum permissible degree of contamination of the pressure fluid is to ISO 4406 (C) class 20/18/15 3) General Installation Optional Ambient temperature range DB.. °C – 30 to + 80 (NBR seals) – 15 to + 80 (FKM seals) DBW... °C – 30 to + 50 (NBR seals) – 15 to + 50 (FKM seals) The minimum housing material strength (for subplate mounting and DBC../DBWC.. valves): Housing materials are to be so selected that adequate safety is ensured for all conceivable operating pressures, e.g.: with ref erence to the compressive strength, thread strength and tightening torques Weight DB. 10 DB. 15 DB. 20 DB. 25 DB. 30 Subplate mounting DB… kg 2.6 – 3.5 – 4.4 DBW… kg 4.05 – 4.95 – 5.85 DBC… kg 1.2 DBWC… kg 2.65 DBC10 or 30… kg 1.5 DBWC10 or 30… kg 2.95 Threaded connections DB..G… kg 5.3 5.2 5.1 5.0 4.8 DBW..G… kg 6.75 6.65 6.55 6.45 6.25 Technical data Directional spool valve See catalogue sheet RE 23 178 Directional poppet valve See catalogue sheet RE 22 058 Port Y (DBW../..Y..) or port T (DBW../..) 技術參數(對於超出這些參數的應用,請咨詢博世力士樂公司!) 345 一般數據 安裝位置 任意 環境溫度範圍 -30 至 +80(用於丁 橡膠密封件) -15 至 +50(用於氟橡膠密封件) -30 至 +50(用於丁 橡膠密封件) -15 至 +50(用於氟橡膠密封件) 重量 底板安裝 和 和 螺紋連接 技術數據 滑動式方向閥 參看樣本 RC 23 178 座式方向閥 參看樣本 RC 22 058 液壓數據 最高工作壓力 在油口 最高背壓: 油口 Y (用於直流電磁鐵) (用於交流電磁鐵) 設定壓力 最小 取決於流量(見第11頁性能曲線) 最大 最高流量 底板安裝 螺紋連接 壓力介質 礦物油(HL, HLP) 按DIN 51 5241) 快速生物解降油液按 VDMA 24 568 (參見 RE 90 221):HETG(菜籽油)1); HEPG (聚乙二醇)2):HEES(合成酯)2); 其他油液請咨詢 壓力介質溫度範圍 -30 至 +80 (丁 橡膠密封件) -15 至 +80 (氟橡膠密封件) 黏度範圍 10 至 800 油液清潔度 油液最高允許污染等級按ISO 4406 (C) 第20/18/15級3) 油口 Y(DBW../..Y..)或口 T(DBW../..) 1) 適用於丁 橡膠密封和氟橡膠密封 2) 僅適用於氟橡膠密封 3) 在液壓系統中必須達到元件要求的清潔度,有效的過濾防止 出現問題,也延長了元件的使用壽命。 選擇過濾器,見樣本RE 50 070,RC 50 076和RC 50 081。 閥體材料之最低強度(用於底板安裝及DBC../DBWC.閥): 閥體材料之選擇已包括在所有工作壓力下之安全系數(例如:參考壓力強度,螺紋強度及緊固扭矩〉。 B1_0337-0352 7/22/04, 2:43 AM9 10/16RC 25 802/03.03 DB; DBW 3 Hydraulic Maximum flow See tables on page 4 and characteristic curves on pages 5 and 6 Pressure fluid Mineral oil (HL, HLP) to DIN 51 524 and DIN 51 525 Pressure fluid temperature range °C – 20 to + 60 (for NBR seals) °C – 15 to + 60 (for FKM seals) Viscosity range mm2/s 12 to 230 Maximum back pressure DB../.. DB../..Y DBW../.. DBW../..Y Port Y bar – 0 – 0 Port T bar 2) pT < 15 2) pT < 15 1) For applications outside these parameters, please consult us! 2) See characteristic curves and explanations regarding the permissible back pressures, see pages 5 and 6 General guidelines • The unloading function (directional valve function with the type DBW) must not be used for safety functions! • For type DBW..B..5X/... the lowest settable pressure is set if the current fails or if there is a cable break (circulation pressure). For type DBW..A..5X/... the pressure relief function is activated if the current fails or if there is a cable break. • Hydraulic back pressures in port T with an internal pilot oil drain or in port Y with an external pilot oil drain are added 1:1 to the response pressure set at the pilot control of the valve. Example: Valve pressure setting via the spring loading (Pos. 12 on page 7) in the pilot control valve/adjustment unit pspring = 200 bar Hydraulic back pressure in port T with an internal pilot oil drain phydraulic = 50 bar => Response pressure = pspring + phydraulic = 250bar 346 技術數據上的差異對於己通過沒汁測試的溢流閥1) 液壓 最高流量 參見第4頁圖表及第5 和 6頁的性能曲線 液壓介質 礦物油(HL,HPL)按DIN 51 524 和
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