<br>Even if there is no leakage, replacement of the mechanical seal is recommended. <br>The mechanical seal can be replaced up to 2 times. If foreign matter enters the circulating fluid, leakage may occur earlier. <br>For protection of the mechanical seal pump, we recommend the installation of a particle filter.
<br>When replacing, follow the replacement procedure in the operation manual and the element replacement procedure (published on the SMC website). <br>The FGD series catalog can be found here. <br>The FQ1 series catalog can be found https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://smccatalog.partbuilder.smcpneumatics.com/support/faq/en-jp/?ca_id=industrial-filters&fa_id=10645
<br>Note) Single-side air driving of SMC hydraulic cylinders is possible, but the increased pressure will drop if air gets inside the air-hydro booster, so be sure to drive both sides with oil whenever possible.<br><br>
<br>Refer to the following formulas for converting the displayed values. <br>sonic conductance C x 5 = effective area S[mm2]<br>Cv x 18 ≈ effective area S[mm2]<br><br>
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<br>This part number includes an O-ring and a tension bolt for connection.<br>If valve size 2 (VV72□) is used, the AXT512-1A-□-□ manifold block assembly is needed. This part number includes an O-ring and a bracket.<br>For details, refer to the manifold exploded view in the catalog.<br>Note) The gasket for use between the valve and the manifold is attached to the valve.
<br>The main points of comparison between the new and old type are as follows.<br>① The pilot valve has been changed. (New and old pilot valves are not interchangeable.)<br>② The low-wattage type (0.4 W) is now the standard specification.<br>③ The new valves are manifold mountable.
<br>Please refer to the links below for details on the main special order options.<br>For other special order requests, please contact your local SMC sales representative.<br>The VFS3000 series catalog can be found https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://smccatalog.partbuilder.smcpneumatics.com/support/faq/en-jp/?ca_id=directional-control-valves&fa_id=10866
<br>Products without sub-plates can also be mounted on a manifold.<br><br>Ex.) With a sub-plate: VFS2100-5FZ-01, Without a sub-plate: VFS2100-5FZ<br>With a sub-plate: VFR3110-1DZ-02, Without a sub-plate: VFR3110-1DZ
<br>If the solenoid valve series is the same (e.g.,, VFS3000 series, base mounted, same plug-in type), the solenoid valve mounting surface will have the same shape.<br>Therefore, the solenoid valve can be replaced within the series.<br>However, in this case, the circuit function will also change after mounting.<br>Note) Check the connection of lead wires separately.
<br><br>Rated, 24 VDC: 20.4 VDC to 26.4 VDC<br>Rated, 100 VAC: 85 VAC to 110 VAC<br>Rated, 200 VAC: 170 VAC to 220 VAC
<br>The SY series plug-in type 5-port valve, for example, is a good choice depending on the application.<br>(Select the quick response type with a metal seal.)
<br>The new VQZ series consumes less power due to the changing of the pilot valve. The old and new valves are generally interchangeable, but the (L type plug/M type plug) connector is not interchangeable.<br>The standard power consumption of new VQZ series valves is now only 0.35 W (DC), so there is no low-wattage type (symbol “Y”) as there was for old VQZ series valves.
<br>Therefore, the allowable leakage voltage of the AC type is now 12.5% or less of the rated voltage (compared with 20% or less of the rated voltage for the VS7/VP7).<br>If a leakage voltage exceeding 12.5% of the rated voltage remains in the circuit when the valve is turned OFF, the pilot valve may not recover.
<br>The weight of the current product (new type) has been reduced compared to the existing product (old type) by changing the shape of the body.<br>In addition, it is interchangeable with the existing model (old type).<br>For the current product, there is an “A” added in the part number.
<br>They can be locked by pressing the front push button. The unlocking method, however, depends on the special order part number suffix added to the part number. See below for details.<br>Alternate type (special order part number suffix “-X207”): Press the button again to return the valve to its original state.