Installation and use of technical requirements
1. hot air valve can only be installed vertically on the ground using the valve stem, the adjustment should be carried out under the vertical stem conditions;
2. Hot air valve ventilation direction and cooling water in and out of the direction must comply with the installation diagram standard direction. Hot air valve is used as a combustion valve, flue valve when the wind direction arrow should point to the hot air stove; hot air valve used as a reverse flow off when the wind arrow should point to the main hot air pipe; hot air valve The wind direction arrow should be turned back to the main hot air pipe when the mixing air cutoff valve is used. (When the hot air valve is used as the above-mentioned other valve installation method, only the nameplate is still "hot air valve" and the nameplate has been clearly defined as the above valve name, Then the media flow).
3 before commissioning cotton yarn body, valve plate sealing surface wipe clean, so as not to be sealed surface is scratched. Before operation, each oil point plus lubricant, floating seal parts scatter graphite powder or grease;
4. Check the valve body, bonnet, stem seal and other parts of the bolt fastening, to ensure that no leakage and the valve plate fell smoothly. Manual low-speed start valve to confirm the normal operation of institutions and then start the test run;
5, the valve pipe installation as a whole installation (excluding transmission). Installation lifting point for the lug on the valve body (located at the round flange at 4, cover lugs are strictly prohibited for the overall lifting), the valve installed after the transmission installed on the valve;
6 valve pipe flange between the application of ceramic metal seal plus high temperature sealant sealed to prevent air leakage;
7. When the valve is open, the lower part of the valve plate should be higher than 100mm above the valve channel. (Debugging method: Raise the valve plate to the upper limit and then drop 50mm as the valve plate open position). Valve cooling water should be smooth, the water temperature is below 40 ℃;
8. Before the valve is installed in the factory, the transmission frame and the valve body are separately packed and stored, and then the whole installation is carried out on site. Install the valve according to the position of the interface to install the valve body and the drive connected to the fastening, close to the switch position on-site installation and adjustment of the fastening. Valve test run, you should manually start after the power. (Note: When the hydraulic transmission valve is installed, open and close the valve so that both sides of the cylinder piston have free travel, adjust and then fixed travel switch gear rack and pinion hydraulic transmission valve should be based on the valve plate stroke limit position adjustment cylinder piston Location, then hang the chain). Smooth operation should not be collision and impact of the phenomenon of arrest.
Valve maintenance and repair
1. Weekly check the sealing performance when the valve is closed, that is, touch the hand, feel the effect of hearing the valve seal to determine the problem reported in a timely manner to deal with;
2. After class to check the cooling water temperature, water pressure and leaks everywhere, and found the problem promptly ruled out;
3. Open the valve should be closed to observe the smooth operation of the situation and found that problems in a timely manner;
4 regular weekly filling oil, grease, to prevent the running parts of the lack of oil burn damage;
5 is strictly prohibited in the cooling water shortage and under the conditions of use;
6. Regular inspection and cleaning of the valve deposits, abnormal and timely treatment;
7. Electric valve electric device instructions for use Please read the supplied electric device manual.
other
1. Valve storage and transportation should be kept below the valve sealing surface, and the vane arrow up (nameplate flue valve, return valve, mixed wind cut off the valve, the vane arrow down) and the stem firmly Fixed in the closed position to prevent vibration and vibration sealing surface;
2. Transmission installation and commissioning in the factory opened after a separate custody shipping.