Catalogs >
Hydropa >
Data sheet DS-307/302

Data sheet DS-307/302
8Pages

Catalog excerpts

English copy version 2015/REV05 PISTON PRESSURE SWITCH DS-307 / DS-302

We are known throughout Europe as a leading specialist for piston pressure switches and provide our customers with a broad range of pressure switch designs. Many years of experience with material combinations, processing techniques and production tolerances enable us to meet the most varied requirements in a targeted and flexible manner. Our pressure switches are distinguished by their durable precision, a broad spectrum of applications and uncompromising reliability. The DS 307/302 is the all-rounder among serial switches (the “original”). It is also extremely reliable under rough ambient...

Open the catalog to page 2

TECHNICAL DATA Hydraulic 1 special low-friction seal SERVICE LIFE The service life of a piston pressure switch depends on numerous factors. Minimum and maximum pressures, cycle rate, load change, hydraulic vibration, the load (amp.) on the electrical switch, etc. Where a pressure switch needs to meet special requirements, we are in a position to address the most varied requirements in a flexible and targeted manner, thanks to our years of experience with material pairings, machining processes and production tolerances. The pressure switches must be installed so that the device is not...

Open the catalog to page 3

ORDERING INFORMATION basic type DS-307 or DS-302 undesign. F F/P Fixed switching points preset by manufacturer: - standard pressure rising - falling if desired = pipe installation = flange connection = with 90° elbow connection plate (p max. = 350 bar) = panel installation = adjusting knurl with scale = lockable adjusting knurl with scale (E10 H2 closure) = sealable (not for versions with scales) = cable socket conforming to EN 175301-803 model type A, Pg11 (Pg9 on request) = 4-pole 24 V lamp socket = 4-pole socket with LED function display = brass housing = special low-friction seal, only...

Open the catalog to page 4

M12x1 connector, 4-pole available on request (only 24 V DC) (M12x1 cable socket available on request) (see ordering information for cable sockets) Special solutions possible on request RESET DIFFERENTIAL PRESSURE 1. Standard seal (normal version): The hysteresis achieved during continuous operation is approx. 7-12 % of the final value at a set pressure of approx. 60-70 % of the max. adjustable switching pressure. Example: In the case of a DS-307-100 pressure switch with a pressure range of 10-100 bar, a hysteresis of approx. 7-12 bar is achieved at a set pressure of 70 bar. 2. Special...

Open the catalog to page 5

The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. The .../B version with 2 two through-holes for fixing can be axially offset through 360° (only for pipe connection version). The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. The .../F/P version is only available up to Pmax. 350 bar (flange version only). Required surface quality of unit support surface

Open the catalog to page 6

The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. Cable sockets version “axial” standard version

Open the catalog to page 7

HYDROPA HYDRAULISCHE ERZEUGNISSE GMBH & CIE. KG Darmannsbusch 4 • D-58456 Witten / Postfach 3165 • D-58422 Witten Telefon: +49 2302 70 12 0 • Telefax: +49 2302 70 12 47 E-Mail: info@hydropa.de • Internet: www.hydropa.de

Open the catalog to page 8