ERA

CPVC Valves & Fittings

A CPVC ball valve is an excellent tool for easy open and closed control of water flow, as well as other liquids.

Material Properties

Material properties

Test

Requirements

Size detection

Socket   size: plug gauge or  caliper

Thread   detection: thread gauge

Anti-fatigue test

Test   according to ISO8659, 2500 cycles, no leakage of components. During the test,   the inside of the sample is filled with water, the outside is air, the   internal pressure is the nominal pressure, and the test is performed at room   temperature at a flow rate of (1±0.2) m/s

Vicat   softening temperature

≥74℃

Shell internal pressure test

No   leakage, no rupture

external assessment

Product   appearance: the surface is smooth, tidy, flawless, and the product is clearly   marked.

Gate:   smooth and free of burrs

Block valve sealing performance test

Air   pressure detection in two states of opening and closing(1/2"-2"   6KGS water pressure hold for 15 seconds, 2" or more 8KGS water pressure   hold for 15 seconds.


Valve tightness test conditions

 test

Minimum test time

 test pressure

Test   temperature

 Test   medium

 internal

 external


    Valve   seat test
    (Valve closed)

60

0.05

20±2

 air

water

DN≤200mm,15

1.1xPNa

 water b

air

DN>200mm,30


    Valve   seat test
    (Valve opened)

DN≤200mm,15

1.1xPNa

water b

 air

DN>200mm,30

 a.   The maximum test pressure is (PN+0.5)Mpa
    b. Or the internal air pressure is (0.6±0.1) Mpa, and the external medium is water; if   there is a dispute, the internal medium is water. The external medium is air


Valve torque test comparison table

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Valve WATERMARK certification test items

Tests

Requirement/test standard

Initial type test

Self-monitoring

Third-party control

UV resistance

Acc. to AS 3558.5,the plastic   components should not crack, craze or show any other failures.

Yes

No

At any any change in materials   specification

Elastomeric materials 

The materials used for seals or gaskets   shall comply with AS 1646.1 and AS1646.2

Yes

No

At any any change in materials   specification

End connector 

The connection ends shall be tested and   verified according to AS 1477 Table 5.1 & Table 5.2

Yes

Once per batch           

At any change in the design

Torque test for body assembly

When tested in accordance with Appendix   B, the valve shall show no signs of splitting, Cracking, distortion or thread   damage

Yes

No

At ant change in design or   manufacturing process