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Composite manhole valve comes from a combination of materials and polymer resins and other chemicals.
Composite manhole valves are characterized by high costs, high mechanical and hydraulic resistance, high thermal and chemical properties, and fire resistance, corrosive chemicals and highly aggravated erosion and replacement of metal products.
General Specification Composite Valve (Composite Manhole Valve)
Composite manhole valves:
Silica fibers
Calcium carbonate
Color pigmented
Peroxide
Unsaturated polyester resin
Composite manhole valve manufacturing method:
The method of manufacturing bmc composite manhole valves.
In the bmc method, no filler or filler of silica or other materials is used.
The production of composite manhole valves due to the low resistance and adhesion of the layers is due to manual laying.
Composite Valve Load Capacity (Composite Manhole Valve)
Technical Specifications for Composite Valve Load Tolerance:
According to American standard H2O & H25 ASTM 306-05
According to European standard EN124 class A-E (load bearing capacity of 5/1, 5/12, 25, 40, 60 and 90 tons)
Composite valve resistor performance (Composite manhole valves)
Composite valve (composite manhole valve) function in fatigue
Composite valve function (Composite manhole valve) against corrosion
Composite Valve Resistance (Composite Manhole Valve) against Ultraviolet
Composite valve resistance (Composite manhole valve) against wear of hard materials
Resistant Composite Valve (Composite Manhole Valve) For Flammability Required Standards Tests:
EN124 pressure test
U.S. Patent ASTMG 154-06 test
Tensile strength test and the effect of chemical solutions on them ASTM 638-10
ASTM 4060 -10 hardness abrasion test
ASTM D635-06 Flammability Test
Composite Valve Function (Composite Manhole Valve):
Composite manhole valve can be removed by one person.
The minimum compressive tension ratio is 1 750.
Failure to weld corrosion between the composite and coil manhole valves and prevent significant breakdown when opening the composite valve
Dimension and thickness of the door of the manhole of the composite valve for use in coils in Tehran
Color variation and inscriptions on the surface of the manhole vent door
Feature for locks or screw installation on request of the employer
The use of special wrenches to open the composite manhole
Safety and Quality Tips for Composite Valve (Composite Manhole Valve)
Insufficient electrical conductivity
Insulation
Failure to move (slip) more than 6% according to ASTM C1028
Dimensional deviation less than 16/1 inches
All of the above mentioned tests are valid in academic and laboratory centers.
Saler Company Information
