OEM Quality High Quality Hydraulic Fluid Level Gauge

The YWZ level gauge series are essential accessories of the oil tank, lubricating device, cooling box and gear-driven box which show the value of level and temperature of the fluid.  

This product has a novel design and nice looking, the fluid level and temperature show clearly, superior assembly performance, there are these advantages of solidity, anti-vibration,anti-cracking and anti-leakage etc. This product can be designed into 63 kinds of specifications.

2.1Housing material
Type              Scale body       Header        Housing
YWZ-ET :       PMMA             PA66             LY11
YWZ-E-C:      PVC                PA66
YWZ-E-A:      PMMA

2.2  Seals

Perbunan (= NBR) ,Viton (= FPM)

2.3 Type of connection

Metric thread connection

3.1 YWZ-ET Order example 

3.2 YWZ-E-C Order example 

3.3 YWZ-E-A Order example 

According to the center distance (E) size, two mounting holes are processed, such as the wall thickness of tank ≤10mm,the unthreaded hole of two mounting screws isφ 11 mm; If the wall thickness of tank  > 10 mm, the thread hole of two mounting screw is M10.YWZ - ET tightening torque 8-10N·m, YWZ - E - C (-T) tightening torque 6-8N·m , YWZ - E - A tightening torque

8-10N·m.In order to prevent leakage after installation, the surface of 2 holes should be processed. Level gauge accessories:nut, washer, sealing flat washer with two pieces for each type provided

by our company.

4. Ordering instruction

The specification should be chosen according to the oil tank level,if level gauge with center distance of screw hole 250mm is needed without thermometer, the model should be YWZ - 250;If with the thermometer, the model should be YWZ-250T. 

Note: The surface of YWZ series is forbidden to contact with isoamyl acetate also called banana oil. 

♦DFFILTRI was founded in 1995, since then we devoted ourselves to research, develop and produce many kinds of hydraulic filters, air filters, hydraulic system accessories, cleaning and filtration equipments, pump valve components. DFFILTRI is our brand, which enjoys high popularity and it has successfully achieved the position both in China and across the world.

♦DFFILTER filtration technology testing center covers a total area of 450 square meters, of which, 

clean room area of 200 square meters, and cleanliness is up to 100,000 levels. The centre

 undertakes filtration technology inspection and testing for in-house science research, production 

and industry service.   

♦On-line particle counter of BETAB-HIAC/POYCO type (8000A/8000S) provided by HIAC/POYCO

company in USA, and its supporting machine"Multi-pass test" and "single-pass test" implements 

ISO16889 new standard and other international standards perfectly.  

♦Testing center also has the developed equiment for filter performance testing, which can make

 the comprehensive examination for filter element/cartridge performance. These can insure that 

company’s filter with high capacity, long life, high reliable in full compliance with our customer's  

requirement.

♦The testing centre can take 7 tests of hydraulic filter performance evaluation, they 

are as follows:

ISO 2941 Verification of collapse/burst resistance

ISO 2942 Verification of fabrication integrity and determination of the first bubble point

ISO 2943 Verification of material compatibility with fluids

ISO 3723 Method for end load testing

ISO 3724 Verification of flow fatigue characteristics

ISO 3968 Evaluation of pressure drop versus flow characteristics

ISO 16889 Multi-Pass method for evaluating filtration performance  

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