The structure of stem shaft

       Chinabase Machinery is a group of manufacturing facilities, offering one-stop solution for mechanical power transmission products in China. We can supply a full-range of power transmission products, such as chains, Agricultural Chain，sprockets and plate wheels, pulleys,V belts， gearboxes, motors, couplings, gears and racks. 

       China couplings manufacturer & exporter, we specialize in: chain couplings, Jaw couplings, flexible couplings, HRC couplings, NM couplings, MH couplings, Pin coupling, Spacer Coupling, Flange Coupling, Sleeve Coupling, nylon sleeve coupling.

     The essence of fireproof structure

       Many valves are claimed to have refractory structure, but thegreat part of the valve in order to reduce the amount of leakageand the use of the soft and hard seat structure, actually this is very dangerous. Because fire soft seal will seat the incomplete combustion of the metal valve seat support stress, temperature and deformation, resulting in failure of fire-resistant function.

Torque Limiter

     High sealing packing structure

     Leak in the valve, traditional tend to focus on the leakage of the valve seat, the inner leakage, while ignoring the leakage, theleakage of filler. And in fact, has been paid more and more attention in the current environment of contemporary society,much larger than the leakage of harmful leakage has become an indisputable fact. Tritec three eccentric butterfly valve, whichbelongs to the rotary valve stem movement was only 90 ° only,this valve, cut-off valve stem movement is a spiral rotaryreciprocating motion, the packing department compared the wearrate is very low, relatively long service life, because the Tritec infiller sealing to prevent external leakage the structure, the highest standard of design, which can in accordance with the EPA21 standard for external leakage test, standard sealing performance guarantee under 100ppm.