ASME A112.18.8-2009 pdf free download.In-Line Sanitary Waste Valves for Plumbing Drainage Systems
3.5 Leak Tightness
3.5.1 Test Method. The valve must be tested in accordance with the hydrostatic pressure test in ASTM F 409 using an internal pressure of 25 psi (172 kPa) for 1 hr.
3.5.2 Performance Requirements. The valve shall show no evidence of leakage and demonstrate air tightness.
3.6 Thermal Cycling
3.6.1 Test Requirement. The valve shall complete the following thermal cycling test procedure for 5 cycles and allow 5 sec of draining time between cycles: (a) 7.9 gpm (30 L/min) of water at a temperature of 203°F ± 4°F (95°C ± 2°C) over a period of 15 min at a constant flow rate (b) 7.9 gpm (30 L/min) of water at a temperature of 68°F ± 10°F (20°C ± 5°C) over a period of 10 min at a constant flow rate
3.6.2 PerformanceRequirements. Atthe completion of the above test, the valve shall be tested in accordance with para. 3.2 and meet the requirements of para. 3.2.3.
3.7 Cyclic Fatigue
3.7.1 Test Requirement. The valve shall complete the following cyclic fatigue test procedure allowing 60 sec for draining between cycles: 1,500 cycles of 60 sec ± 2 sec duration, at a temperature of 200°F ± 4°F (93°C ± 2°C) followed by 60 sec at a temperature of 59°F ± 10°F (15°C ± 5°C), flow rate 7.9 gpm ± 0.1 gpm (30 L/min ± 0.5 L/min).
3.7.2 PerformanceRequirements. Atthe completion of the above test, the valve shall be tested in accordance with para. 3.2 and meet the requirements of para. 3.2.3.
3.8 Resistance to Household Substances
3.8.1 Test Apparatus. The valve shall be attached to a sink fitted with a standard crosspiece outlet.
3.8.2 Substances to Be Tested. Each test shall be carried out separately using a quantity of 1.5 oz (43 g) or 1.5 fl oz (44 mL) of one of the following materials:
(a) material 1: food — uncooked long-grain rice
(b) material 2: food — diced vegetable of size 1 ⁄ 4 in. 1 ⁄ 4 in. ? 1 ⁄ 4 in. (6 mm 6 mm 6 mm)
(c) material 3: cleaners — liquid soaps
(d) material 4: solids — kiln-dried sand
(e) material 5: lard —95% water, 5% melted lard, each at 150°F (65.6°C) 3.8.3 Test Method. The material shall be placed on or around the sink outlet. Four pints (64 fl oz or 1.9 L) of water will then be poured onto the item to flush the material from the sink. For Materials 1 through 4, cold water shall be used; for Material 5, warm water at 150°F (65.6°C) shall be used. The system will then be left for 24 hr.
3.8.4 Performance Requirements. Atthe completion of the above test, the valve shall be tested in accordance with para. 3.2 and meet the requirements of para. 3.2.3.
3.9 Resistance to Chemicals and Solvents
3.9.1 Test Requirement. The valve shall be attached to a sink fitted with a standard crosspiece outlet.
3.9.2 Substances to Be Tested. Each test shall be carried out separately using a quantity of 3 ⁄ 4 pt (12 fl oz or 0.35 L) of one of the following solvents: (a) solvent 1: liquid drain cleaner containing sulfu- ric acid (b) solvent 2: mineral spirits (c) solvent 3: kerosene
3.9.3 Test Method. The material shall be poured into the sink outlet. After one minute, pour 4 pt (64 fl oz or 1.9 L) of cold water into the sink outlet to flush the solvent from the sink. The system will then be left for 24 hr.
3.9.4 Performance Requirements. Atthe completion of the above test, the valve shall be tested in accordance with para. 3.2 and meet the requirements of para. 3.2.3.
3.10 Drop
3.10.1 Test Method. The test shall be conducted over a clean concrete surface. Hold the valve with the lowest pointupside down, 3 ft(0.91 m) above the surface and release the valve. Pick up the valve and change orientation (top uppermost) and release onto concrete again. Pick up the valve one final time and change orientation (sideways) and release onto concrete. Observe the valve for any changes.
3.10.2 Performance Requirements. The valve shall show no signs of deformation or breakage that may affect its function.
3.11 Life Cycle
3.11.1 Test Requirement. Resistance of the valve to cyclic fatigue under ambient conditions shall be tested using the apparatus shown in Fig. 4.
3.11.2 Test Method. The valve under test shall undergo 20,000 cycles. Acycle comprises 10 sec exposure to the solution, followed by 10 sec of draining. 3.11.3 Performance Requirements. At the completion of the above test, the valve shall be tested in accordance with para. 3.2.ASME A112.18.8 pdf download.ASME A112.18.8-2009 pdf free download
