First, the product standards Domestic manufacturers in accordance with the following national standards or industry standards for manufacturing and product performance testing "submersible sewage pump" CJ / T 3038-95 "small submersible pump" JB / T 8092-96 "submersible sewage pump" (identified technology Condition) HCRJ 033-1998 "Centrifugal submersible sewage pump" JB / T 8857-2000 "Sewage submersible pump" JB / T 5118-2001 "Submersible pump test method" GB / T Wholly foreign-owned enterprises Products And the implementation of the following standards for imported products in general "Mechanical Standards" EN ISO 12100 "electromagnetic compatibility standards" EN 61000-6-2,3 "test standards" EN ISO 9906 Second, the engineering standards "Construction of water supply and drainage and heating engineering construction quality acceptance Standard "GB50242-2002 3), the relevant standard 01S305" small submersible sewage pump selection and installation of construction, installation points 1), AS, AV, QW (WQ), JYWQ various brands and submersible sewage pump have moved Installation and fixed installation of two basic forms. In accordance with the National Building Standard Design Atlas 01S305 "small submersible sewage pump selection and installation" selection. The hose connection is only limited to mobile installation of motor power N ≤ 7.5kW submersible sewage pump and discharge pipe diameter DN ≤ 100mm occasions. 2), submersible sewage pump automatic control device using liquid level automatic control. Automatic level control device types in addition to the float level switch, such as sewage does not contain or contain only a small amount of suspended impurities, but also the choice of input pressure sensor and supporting secondary instrument. The automatic level control device installed in the sump (catchment well) should be as far away from the water inlet as possible. 3) A single submersible sewage pump weight greater than 80kg of indoor sewage pool (water collection wells) above the manhole or floor should be buried with hooks for installation and maintenance of submersible sewage pump upgrade. 4) According to the relevant provisions of the current "Code", in addition to the use of fabric-reinforced rubber hose at the hose connection site, the submersible sewage pump discharge pipe can be rigid plastic water supply pipe, centrifugal casting ductile iron water pipe, steel pipe , Steel-plastic composite pipe. The pressure-bearing capacity of pipes and fittings should not be less than 0.6MPa. 5) The installation of submersible sewage pump for building fire elevator sump should adopt two rigid pipe connections fixed or two fixed auto-coupling, and the effective volume of sump is not less than 2.0m3, submersible sewage pump Rated flow of not less than 36m3 / h. 6), in the submersible sewage pump discharge pipe should be set on the control valve, check valve, flexible rubber pipe joints and pressure gauges. National Building Standard Design Atlas 01S305 "small submersible sewage pump selection and installation" in the control valve recommended gate valve can also be used according to need butterfly valve; check valve recommended spherical sewage check valve.
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