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How do we do hydro Pressure Test of Rack & Pinion Pneumatic Actuator



1. Introduction


Our rack & pinion pneumatic actuators fully comply with the latest international standards: ISO5211, DIN3337, VDI/VDE3845 and NAMUR standards. The extruded high-strength aluminum cylinder body is finely ground and hard anodized on the inner surface, with long service life, low friction coefficient and rapid movement.

Table 1: Double-acting pneumatic actuator output torque


Model Air Supply Mpa
0.25 0.3 0.4 0.5 0.55 0.6 0.7 0.8
Torque NM
AT32 3.5 4.2 6 7.5 8 9 10 11.5
AT52 8.8 10.7 14.5 18.3 20.2 22.1 25.9 29.8
AT63 15.6 19.1 25.9 32.8 36.2 39.6 46.5 53.3
AT75 28.9 35.1 47.5 59.8 66 72.2 84.5 96.9
AT85 41.4 50.4 68.6 86.7 95.8 104.9 123 141.2
AT100 65.7 79.8 108 136.3 150.4 164.6 192.8 221.1
AT115 108.8 132.2 178.9 225.6 248.9 272.3 319 365.7
AT125 143.3 174 235.3 296.6 327.3 358 419.3 480.6
AT160 300 360 480 600 660 720 840 690
AT200 562 675 900 1125 1237 1350 1575 1800
AT270 1304 1565 2086 2608 2869 3130 3651 4173


2. Procedures of hydro pressure test




To ensure the complete function and safety of rack & pinion pneumatic actuators, we need make inspection and test before the release. Now we introduce the simple procedures of pneumatic actuators below:


1.   Prepare the actuators without foreign matter on surface. Make sure that all bolts are tightened.

2.   Put it into test bench softly

3.   Clamp the actuator tightly and fill in air of 6 barg under water;

4.   Check whether any bubble appear from the actuator. If visible bubbles are observed, desert it into unqualified product section.

5.   Maintain the time duration of 30 seconds under air supply of 6 barg.

6.   Relieve the air and take the actuators out after acceptance;

7.   Wipe the actuators clean and put them in dry environment.


If you have any question, freely contact us via cspneumatic@hotmail.com




CONTACT US

Contact: Zhang Heng (Bill )

Phone: 86 13634285240

Tel: 86 0577 86915200

Email: cspneumatic@hotmail.com

Add: Yongqiang High Technology Developing Zone, Wenzhou, China.