Description Size 40 … 300 Component series 3X Maximum operating pressure 25 bar Maximum flow 50000 l/min Features For flange connection As cartridge valve Flange connection according to DIN EN 1092-2 type 21 2 pressure ratings Adjustment type for pressure adjustment: Sleeve with hexagon and protective cap Product description Pressure valves of type L–DB are pilot-operated pressure relief valves for a low preload pressure. They are suitable for high flows. The valves basically consist of pipeline installation housing (1), main spool guide (2) for accepting the pilot control valve (5) and main spool (3). Type L–DB The pressure applied to channel P acts on the main spool (3) and is simultaneously applied to the pilot control valve (5) via nozzles (4) and (6). If the pressure in channel P exceeds the value set at the pilot control valve (5), the latter opens and the pilot oil is directly discharged into channel Y (7). The main spool (3) moves upwards against the springs (8) and (9) and connects channel P to channel T as long as the pressure exceeds the value set at the pilot control valve. With version “U”, the main spool (3) is only kept closed by the external spring (9). If the control channel is unloaded, a lower circulation pressure can be achieved. Type L–DBF In principle, the function of version “L–DBF” corresponds to the function of type L–DB. The valve is, however, designed as cartridge valve without pipeline housing (1). Type code 01 02 03 04 05 06 07 08 09 10 11 L–DB 2 – 3X / * 01 Pressure relief valve L–DB 02 Pipeline installation no code Cartridge valve (only size 50 … 200) F 03 Size 40 40 Size 50 50 Size 65 65 Size 80 80 Size 100 100 Size 125 125 Size 150 150 Size 200 200 Size 250 250 Size 300 300 04 Flange connection according to DIN EN 1092-2 type 21 F Cartridge valve no code Adjustment type 05 Sleeve with hexagon and protective cap 2 06 Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions) 3X Set pressure 07 Up to 16 bar 16 Up to 25 bar (only size 80, 100 and 150) 25 Pilot oil flow 08 Internal pilot oil supply, external pilot oil return Y External pilot oil supply, external pilot oil return XY 09 Standard version no code Valve for minimum cracking pressure U Seal material 10 NBR seals no code FKM seals V Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) 11 Further details in the plain text * Technical data general Size 40 50 65 80 100 125 150 200 250 300 Weight kg 11 15 26 32 50 75 100 180 300 475 Installation position any Ambient temperature range NBR seals °C -30 … +80 FKM seals °C -15 … +80 hydraulic Size 40 50 65 80 100 125 150 200 250 300 Maximum operating pressure Port P bar 16 16 25 16 16 25 16 Port X bar 16 16 25 16 16 25 16 Port T bar 16 16 25 16 16 25 16 Maximum counter pressure Port Y bar 16 16 25 16 16 25 16 Maximum flow l/min 1000 1500 2700 3600 6000 7000 13000 24000 35000 50000 Hydraulic fluid see table Hydraulic fluid temperature range NBR seals °C -3
Бесплатная доставка по РФ при заказе от 50 000 р.
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