力士樂壓力閥DBA...2X
力士樂壓力閥DBA...2X壓力調節閥亦稱自力式平衡閥、流量控制閥、流量控制器、動態平衡閥、流量平衡閥，是一種直觀簡便的流量調節控制裝置，管網中應用流量調節閥可直接根據設計來設定流量，閥門可在水作用下，自動消除管線的剩余壓頭及壓力波動所引起的流量偏差，無論系統壓力怎樣變化均保持設定流量不變，該閥這些功能使管網流量調節一次完成，把調網工作變為簡單的流量分配，有效的解決管網的水力失調。
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力士樂壓力閥DBA...2X
博世力士樂作為德國博世集團的全資子公司，是工業技術市場的供應商。在傳動和控制領域聲譽*。2006年銷售額超過49億歐元，擁有專業員工29,831名。早在1978年，博世力士樂就開始了在中國的業務，現已成立了四家公司。憑借*的產品和豐富的應用經驗，博世力士樂為中國客戶提供現代高效和靈活完整的解決方案。 從標準解決方案到大型工程項目，博世力士樂幾乎為所有的工業領域提供專業服務。從機床、塑料機械、食品和包裝機械、冶金、汽車工業、印刷和造紙工業，到電子工業、半導體工業、海事工程、建筑與農業機械、鉆探設備，博世力士樂的服務領域在不斷延伸。得益于在工業及工廠自動化的諸多領域和行走機械應用方面積累的豐富經驗，博世力士樂總能準確把握客戶對機械制造及工廠建設與維護的各種需求，這就是其廣受客戶青睞的原因。
General
Pump safety blocks type DBA are pilot-operated pressure relief valves which are integrated into a block and intended to be mounted directly onto SAE pressure ports of pumps.
It is used for limiting (type DBA) the operating pressure.
Pump safety blocks generally consist of valve block (1) and pressure limitation screw-in cartridge valve type DB 20 K (2) (data sheet 25818). Optionally, a pressure switch type HED 8 (3) (data sheet 50061) can be installed on the valve block.
The valve housing is equipped with a port P for hydraulic fluid input and port P1 for hydraulic fluid output. In a branch of the through connection between these two ports, the pressure limitation screw-in cartridge valve can be found. By opening this valve, a connection to port T (tank line) is established.
At the standard model, connection diagram NG6 is covered with the cover plate (4). The pressure in the through connection (P - P1) has an effect on the main control spool (5) of the pressure limitation screw-in cartridge valve.
Via the nozzle bores (6 and 7), the pressure is at the same time applied to the poppet (8). If the pressure in port P exceeds the value set at spring (9), the poppet (8) opens against the spring (9).
Via the nozzle bores (6 and 7), the hydraulic fluid from channel P flows into the spring chamber (10) and is here internally directed via the control line (11) into the tank.
Due to the state of equilibrium at the main control spool (5), hydraulic fluid flows from channel P to channel T, maintaining the set operating pressure.
A pressure gauge connection (12) allows for the control of the operating pressure.
Pump safety block type DBA…D (with pressure switch)
The use of an electrical pressure switch type HED 8 (3) (data sheet 50061) enables activation and deactivation of an electric circuit via the control line (13).
In basic design, the control line (13) is closed with a plug screw (14).
The pressure gauge connection M and tank port T are illustrated with an offset of 90 °!
- Zero-pressure start-up and circulation of the pump
- Intended for direct mounting onto the SAE pressure port of the pump
- Low circulation pressure due to short distance
- Low compression volume for soft switching to depressurized circulation
- Quick pressure build-up
- 4 adjustment types for pressure adjustment, optionally
• Rotary knob
• Sleeve with hexagon and protective cap
• Lockable rotary knob with scale
• Rotary knob with scale - 5 pressure ratings, optional
- Low noise level due to direct flange mounting at the pump
力士樂壓力閥DBA...2X
日本豐興部分產品型號介紹：
TOYOOKI豐興HVP-FA1定量泵
示例型號：
HVP-FA1-L2R-A
HVP-FA1-L5R-A
HVP-FA1-F8R-A
HVP-FA1-F11R-A
TOYOOKI其它泵：HPP.TCP.HBPV.HBPG.HBPP.TCM.WVP
TOYOOKI豐興HR直動式溢流閥
示例型號：
HR1-DT0-06
HR3-BG1-02A
HR3-BT2-04
HR3-BF3-04
TOYOOKI其它壓力閥：
HT.HRD.HRU.HG.HQ.HU.HB.HR-HKT.HR-HKG.HGR
TOYOOKI豐興HD直動式電磁換向閥
示例型號：
HD1-3W-BCA-025B-WYD2
HD3-2WD-BcA-025B-WYR1
HD3-3W-BGA-025B-WYR1
HD5-2S-KcP-025B-WYR2
TOYOOKI其它換向閥：HDD3(C)-WY*.HDD3(C)-LY*.HD3-4*LG.HD3-42MG.HK3.HK2
TOYOOKI豐興HLD先導式電磁減速閥
示例型號：
HLD3-CW0-1-04A-WY
HLD3-CS1-2-06A-WY
HLD3-CS2-G1-10A-WY
HLD3-CS1-G1-10A-LY
TOYOOKI其它流量閥：HT3H.HR3H.HG3H.HG1H.HQ3H.HB3H.HRB3H.HK3H.
HF3H.HW3H. HKF3H.HFG3H.HKG3H.HGF3H.HGR2M.HK2M.HLD3H.HFK2H.
HGD2H.HMC.HMD
TOYOOKI豐興TP系列泵站
示例型號：
TP20NA-B3-B
TP40NA-C5-C
TP63NA-G5-D
TP100N-D3-F
TP160N-D5-G
TOYOOKI其它泵站：TP20E.TP*N.TSU.MFU.PSA1
TOYOOKI豐興壓力閥型號如下:
AD-SL231-304D-DA4（AC220V）
HD3-3W-BCA-03A-WYA*
HD3-3W-BCA-03A-WYA4
HD3-2S-BCA-03A-WYA4HD3-2WD-BCA-025AY-WYA1
AD-SL231D-712D
HD3-2S-BCA-025AY-WYD2HVP-VCC1K-F4040A3A3
HD3-2S-BCA-025AY-WYAI
TCP-031-B
AD-SL231D-304D
AD-SL231D-304D-DA4C）
HD3-3W-BGA-025AY-WYA1
HD3-3W-BGA-025AY-WYR1
HD3-3W-BGA-025AY-WYA2
HD3-3W-BGA-025AY-WYA1
HF2-KG1-02豐興調整閥
HD1-3W-BGA-025B-WYR4
HVP-FC1-L39R-G定量葉片泵
TP20NA-B5-C-CK21（AC380V/50HZ）
TP40NA-C5-C-CK21（AC380V/50HZ）
HVP-FE1-L75R-A
HBPV-KC4-VC1-26A2-A
HD3-2S-BCA-025A-LYA1
HFD1-PG1K-1M-02
日本TOYOOKI豐興定量型toyooki葉片泵（HVP-FE1系列）
HVP-FE1-L50R-A
HVP-FE1-F50R-A
HVP-FE1-L60R-A
HVP-FE1-F60R-A
HVP-FE1-L75R-A
HVP-FE1-F75R-A
HVP-FE1-L85R-A
HVP-FE1-F85R-A
HVP-FE1-L95R-A
HVP-FE1-F95R-A
HVP-FE1-L108R-A
HVP-FE1-F108R-A
HVP-FE1-L120R-A
HVP-FE1-F120R-A