Danfoss MBS 4050 Heavy duty pressure transmitter with integrated pulse snubber Designed for use in demanding hydraulic / water applications Enclosure and wetted parts of acid resistant stainless steel (AISI 316L) Protected according to EU EMC directive Temperature compensated and laser calibrated Excellent protection against pressure peaks, cavitation and liquid hammer High accuracy High overload pressure Click for a Danfoss Adobe Acrobat brochure   Technical Data Media: Air, gas, liquid Operating temperature: -40oC to 85oC Wetted parts: AISI 316L (DIN 17440 - 1.4404) Enclosure: Plug version : IP65 Electrical connection: DIN 43650 plug Pg9 Accuracy: ≤± 0.5% FS (typ.), ≤± 0.8% FS (max.) Supply voltage: 10 to 30V d.c. Output signal: 4 to 20mA Process connection: G1/2A, DIN 16288, with integrated pulse snubber

MBS 4050 with integrated pulse snubber is specially suited for hydraulic applications where cavitation, liquid hammer or pressure peaks may occur - influences that often cause a short but extreme excess of the max. working pressure of the transmitter.

The integrated pulse snubber is in principle design as a nozzle mounted in the passage between the measured medium and the pressure sensitive element of the transmitter.

Application - Cavitation, liquid hammer and pressure peaks may occur in hydraulic systems with changes in flow velocity, e.g. fast closing of a valve or pump starts and stops.  The problem can occur on the inlet and outlet side of a pump or valve even at rather low operating pressures.

Media condition - Clogging of the nozzle may occur in liquids containing particles.  Mounting the transmitter in an upright position minimises the risk of clogging, because the flow into the nozzle is restricted to the start-up period when the dead volume behind the nozzle fills.  The media viscosity has only little effect on the response time.  Even at viscosities up to 100cSt, the response time will not exceed 4ms.

E & OE