ASME A112.1016 pdf download Set-up for high-temperature conditioning, pressure and temperature variation, and water supply pressure loss tests
4.3 Working pressure test
4.3.1 Purpose
The purpose of this test is to determine if the device can withstand pressures between 1 40.0 and
860.0 kPa (20 and 1 25.0 psi).
4.3.2 Procedure with the valves closed
The device shall be tested in accordance with Section 4.3.4 with the device’s valve in the closed position.
The specimen shall be subjected to the pressures specified in Section 4, for 5 min each.
4.3.3 Procedure with the outlet(s) blocked
The device shall be tested in accordance with Section 4 with the device’s valve in the fully open position.
The outlet(s) shall then be blocked and the specimen shall be subjected to the pressures specified in
Section 4, for 5 min each.
4.3.4 Test temperatures and pressures
4.3.4.1
The test shall be conducted in an ambient environment of 20.0 ± 5.0 °C (68.0 ± 9.0°F). The device shall be
brought to equilibrium test temperatures by running water through it.
4.3.4.2
Test temperatures and pressures shall be as follows:
(a) 1 40.0 ± 1 3.8 kPa and 1 0.0 ± 6.0 °C (20.0 ± 2.0 psi and 50.0 ± 1 0.0°F);
(b) 860.0 ± 1 3.8 kPa and 1 0.0 ± 6.0 °C (1 25.0 ± 2.0 psi and 50.0 ± 1 0.0°F);
(C) 140.0 土13.8 kPa and 66.0 6.0C(20.0 2.0 psiand 150.0 10.0); and(d) 860.0+13.8 kPa and 66,06.0C(12.02 psi and 150.0 10.0F).
4.3.5 Failure criteriaLeakage or other failures of the seals shall result in the rejection of the device
4.4 Maximum operating torque or force adjustment test
4.4.1 PurposeThe purpose of this test is to determine the maximum torque or force required to adjust the device.
4.4.2 Procedure
4.4.2.1Conduct the tests specified in Clause 5.5 of ASME A112.18,1/CSA B125.1.
4.4.2.2After the tests specified in Section 4.4.2.1, the following tests shall be conducted:a)Set up the specimen as specified in ltems (a) to (f) of Section 4.6.3, See Figure 1.Move the adjusting mechanism of the specimen (e.g, handle(S) or lever(s)) through its full operating(b)range, The force shall be applied at the extreme end of the adjusting mechanism.(c) Record the maximum operating torque or force.
4.4.3 Failure criteria
A maximum operating torque or force to adjust the device exceeding the requirements specified in ASMEA112.181/CSA B125.1 shall result in the rejection of the device.
4.5 Life cycle tests
4.5.1 Purpose
The purpose of these tests is to determine if there is any deterioration in the performance of the deviceupon completion of the following cycles of operation:(a) The operating control test shall simulate the intended operating motion of the device(b) The internal elements test shall simulate inlet pressure and temperature changes.
www.freestandardsintroduction.com