1. Structure features: Disc can close automatically under the gravity effect to prevent fluid flowing backwards.
2. Self sealed structure: Seal ring of bonnet flanged has the function of seal under the pressure of fluid.
3. Wafer double disk swing check valve: Small water hammer pressure, short disc journey, spring loaded, quick turn-on and cut off, short structure length, small volume and light weight. >>
1.is widely applied in these field such aspetrochemistry,long transporting pipes etc.
2.the least flowresistance,small volume and weight, which is convenient to install.
3.the fixed ball used the pressure of spring and medium to press valve base on valve body to airproof, so the operation moment is smaller,is is applied in high pressure and big-caliber valves. >>
This product is produced in according to API standard in designing manufacture and checking; it is compact in pattern, reliable in sealing and easy to operate;
it is used inpetroleum,chemical, electric power, metallurgy and other industries. >>
This product is produced in according to API standard in designing manufacture and checking; it is compact in pattern, reliable in sealing and easy to operate; it is used in petroleum, chemical, electric power, metallurgy and other industries. >>
1. Structural characteristic: position indication, lock structure three- prevention structure.
2. Whole structure has the position indication lock set,
fireproofing, anti static, and preventing stem from rush out.
3. Obvious indication of switch position: sphere, stem and hand holder, valve turn off.
4. Position lock: in order to avoid wrong operation, set up the padlock set, may lock the switch position whennecessary.
5. structure of preventing stem form rush out: adopt down installing va... >>
1. Spring loaded moving valve seat construction is adopted with reasonable seal force in
design to make easy operation and reliable sealing
performance.
2. According to customer’s requirements, a construction can be designed to make the item to be suitable for mediums
containing solid articles
or durable for high temperature.
3. Bottom mounted stem is adopted, inverted sealing structure set up and stuffing seal reliability guaranteed. >>
1. Spring loaded moving valve seat construction is adopted with reasonable seal
force in design to make easy operation and reliable sealing performance.
2. According to customer’s requirements, a construction can be designed to make the item to be suitable for mediums
containing solid articles or durable for high temperature.
3. Bottom mounted stem is adopted, inverted sealing structure set up and stuffing seal reliability guaranteed. >>
1. Spring loaded moving valve seat construction is adopted with reasonable seal force in design to make easy operation and reliable sealing performance.
2. According to customerÂ?fs requirements, a construction can be designed to make the item to be suitable for mediums
containing solid articles
or durable for high temperature.
3. Bottom mounted stem is adopted, inverted sealing structure set up and stuffing seal reliability guaranteed. >>
1. Structure features: Disc can close automatically under the gravity effect
to prevent fluid flowing backwards2. Self sealed structure: Seal ring of
bonnet flanged has the function of seal under the pressure of fluid.3. Wafer
double disk swing check valve: Small water hammer pressure, short disc
journey, spring loaded, quick turn-on and cut off, short structure length,
small volume and light weight. >>