力士乐压力阀DB52
力士乐压力阀DB52压力调节阀亦称自力式平衡阀、流量控制阀、流量控制器、动态平衡阀、流量平衡阀，是一种直观简便的流量调节控制装置，管网中应用流量调节阀可直接根据设计来设定流量，阀门可在水作用下，自动消除管线的剩余压头及压力波动所引起的流量偏差，无论系统压力怎样变化均保持设定流量不变，该阀这些功能使管网流量调节一次完成，把调网工作变为简单的流量分配，有效的解决管网的水力失调。
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力士乐压力阀DB52
博世力士乐作为德国博世集团的全资子公司，是工业技术市场的供应商。在传动和控制领域声誉*。2006年销售额超过49亿欧元，拥有专业员工29,831名。早在1978年，博世力士乐就开始了在中国的业务，现已成立了四家公司。凭借*的产品和丰富的应用经验，博世力士乐为中国客户提供现代高效和灵活完整的解决方案。 从标准解决方案到大型工程项目，博世力士乐几乎为所有的工业领域提供专业服务。从机床、塑料机械、食品和包装机械、冶金、汽车工业、印刷和造纸工业，到电子工业、半导体工业、海事工程、建筑与农业机械、钻探设备，博世力士乐的服务领域在不断延伸。得益于在工业及工厂自动化的诸多领域和行走机械应用方面积累的丰富经验，博世力士乐总能准确把握客户对机械制造及工厂建设与维护的各种需求，这就是其广受客户青睐的原因。
Pressure valve type DB is a pilot-operated pressure relief valve. It is used for limiting (DB) a system pressure.
The pressure relief valves basically consist of the pilot control valve (1) with pressure adjustment element (2), main valve (3) with main spool insert (4) and directional valve (5), optional.
Pressure relief valves type DB
The pressure applied by the system acts on the main spool (4). At the same time, pressure is applied to the spring-loaded side of the main spool (4) and to the pilot control valve (1) via the control lines (6) which are equipped with nozzles. If the system pressure exceeds the value set at the spring (7), the poppet (10) of the pilot control valve opens. The hydraulic fluid on the spring-loaded side of main spool (4) now flows via the spring chamber of the pilot control valve (1) to the tank, either internally via port T, or externally, via port Y. Due to the nozzle combination in the control lines, a pressure drop results at the main spool, the connection from P to T is thus released. The hydraulic fluid flows from channel P to channel T maintaining the set operating pressure.
The pressure relief valve can be unloaded by means of remote control or switched to another pressure value via port X (8).
Influencing of the switch-off time
The nozzle (9), by default equipped with Ø0.8 mm, is used to influence the switch-off time. By exchanging this nozzle (9), the switch-off time can be set to a slower or faster value.
The pressure limiting function is thus not influenced.
Type code
01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |
DB | 52 | 3X | / | U | * |
01 | Pressure relief valve | DB |
02 | Without directional valve | no code |
03 | Size 52 | 52 |
Version | ||
05 | For subplate mounting | P |
for flange connection | F | |
Adjustment type for pressure adjustment | ||
06 | Rotary knob | 1 |
Sleeve with hexagon and protective cap | 2 | |
Lockable rotary knob | 3 1) | |
Main piston | ||
07 | in seat spool design | – |
in sliding spool design | L | |
08 | Component series 30 … 39 (30 … 39: unchanged installation and connection dimensions) | 3X |
Pressure rating | ||
09 | Set pressure up to 100 bar | 100 |
Set pressure up to 315 bar | 315 | |
Pilot oil supply | ||
10 | Ordering code according to symbols | – |
X | ||
Y | ||
XY | ||
11 | for minimum cracking pressure 3 bar | U |
12 | without directional valve | no code |
14 | Without manual override | no code |
Electrical connection Individual connection | ||
15 | without mating connector with connector DIN EN 175301-803 | K42) |
Seal material | ||
16 | NBR seals | no code |
FKM seals (other seals upon request) | V | |
Observe compatibility of seals with hydraulic fluid used. | ||
Type-examination procedure | ||
17 | without type-examination procedure | no code |
Type-examination tested safety valve according to PED 2014/68/EU | E | |
18 | Further details in the plain text | * |
| 1) H-key with the order no. R900008158 is included in the scope of delivery | |
| 2) Mating connectors, separate order |
力士乐压力阀DB52
日本丰兴部分产品型号介绍：
TOYOOKI丰兴HVP-FA1定量泵
示例型号：
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丰兴HR直动式溢流阀
示例型号：
HR1-DT0-06
HR3-BG1-02A
HR3-BT2-04
HR3-BF3-04
TOYOOKI其它压力阀：
HT.HRD.HRU.HG.HQ.HU.HB.HR-HKT.HR-HKG.HGR
TOYOOKI丰兴HD直动式电磁换向阀
示例型号：
HD1-3W-BCA-025B-WYD2
HD3-2WD-BcA-025B-WYR1
HD3-3W-BGA-025B-WYR1
HD5-2S-KcP-025B-WYR2
TOYOOKI其它换向阀：HDD3(C)-WY*.HDD3(C)-LY*.HD3-4*LG.HD3-42MG.HK3.HK2
TOYOOKI丰兴HLD先导式电磁减速阀
示例型号：
HLD3-CW0-1-04A-WY
HLD3-CS1-2-06A-WY
HLD3-CS2-G1-10A-WY
HLD3-CS1-G1-10A-LY
TOYOOKI其它流量阀：HT3H.HR3H.HG3H.HG1H.HQ3H.HB3H.HRB3H.HK3H.
HF3H.HW3H. HKF3H.HFG3H.HKG3H.HGF3H.HGR2M.HK2M.HLD3H.HFK2H.
HGD2H.HMC.HMD
TOYOOKI丰兴TP系列泵站
示例型号：
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丰兴压力阀型号如下:
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丰兴调整阀
HD1-3W-BGA-025B-WYR4
HVP-FC1-L39R-G定量叶片泵
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丰兴定量型toyooki叶片泵（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