All pumps are available packing and mechanical seals, if the order will not be described in packing factory. Direction from the motor, the pump is clockwise. According counterclockwise rotation can be changed to double suction pump 250S-14A, but orders should be made separately 250S-24 double suction pump for special supplies. 3. Operation and maintenance (1) water pump bearing maximum temperature should not exceed 75 ° C. (2) the number of calcium-based grease lubricated bearings should be to occupy the space of the bearing body 1 / 3-1 / 2 is appropriate. (3) when a filler may be appropriate to wear compression packing gland 250S-24A double suction pump should be replaced if excessive wear and tear. (4) during operation immediately if found abnormal noise or other sound should stop, check the cause. (5) Periodic inspection flexible coupling member, that the motor bearing temperature rise. Double suction pump, 250S-24A double suction pump, mechanical seal (certified merchants) Ltd provided by the Shijiazhuang-send pump. Shijiazhuang-school Pump Co., Ltd. (www.shipaipump.com) is specialized in "slurry pumps, submersible pumps, sewage pumps, chemical pump, pulp pump, water pump, mud pump, multi-stage" of the enterprise, the company of " honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Manager Xu.