SNGGWG pipe pump without negative pressure water supply equipment to replace the cistern and roof tanks, tap water pipelines can take full advantage of the pressure of direct or indirect water, to avoid the secondary waste of energy and water quality secondary Pollution, substantial savings in infrastructure investment and shorten the construction period. Now to detail SNGGWG tube pump negative pressure water equipment characteristics. Pipe pump SNGGWG pipe pump without negative pressure water equipment Features 1, energy efficient SNGGWG Pipe pump without negative pressure water supply equipment can be directly connected to the water supply network water supply, does not undermine the original water supply network pressure. Equipment take full advantage of the pressure pipe and the "sleep", "wake up" function, frequency control, to achieve secondary water supply, saving rate of 30-80%, to achieve the desired energy-saving effect. Equipment pump efficiency is higher than multistage centrifugal pump 5 ~ 20%, supporting power than centrifugal pump to reduce a supporting power level, high efficiency and energy saving. 2, saving investment, easy installation, easy maintenance SNGGWG pipe pump without negative pressure water equipment units without reservoirs, roof tanks and other storage facilities, but also without water treatment equipment, saving floor space and reduce investment costs. Equipment for the whole stainless steel, clean and beautiful appearance, compact structure, small footprint, flexible combination, adaptability. When any of the water supply equipment in the pump failure, just at both ends of the pump group can be closed after the valve can be arbitrarily disassembled, does not affect the operation of other pump sets, pump sets and motor bearings with water-lubricated bearings , Do not need to add any grease, almost no maintenance. 3, ultra-quiet SNGGWG pipe pump without negative pressure water equipment pump completely submerged in the water run, and closed in the tube, it runs completely mute, the noise can be reduced to about 40 decibels (general equipment 80 ~ 100 dB). At the same time due to the use of mute dedicated inverter, and with the soft-start, soft stop, effectively reduce the pressure rate of change to eliminate water hammer noise, eliminating the secondary water supply machine disturbance nuisance shortcomings. 4, environmental health, pollution-free SNGGWG tube pump negative pressure water pump equipment for the original production, efficient and stable, reliable quality. The material is stainless steel 304 or 316, all parts comply with environmental standards, and the authority of the health and quarantine inspection report, the selection of motor shielded water motor, the product meets the FDA food standards, the water quality without any pollution. Other flow components are made of stainless steel and other food-grade materials, equipment structure to form a closed system, so completely eliminate water pollution, in line with international water hygiene requirements. 5, High degree of automation, safety, energy saving SNGGWG pipe pump without negative pressure water supply equipment can achieve full automatic control, with automatic / manual switching, pressure adjustment, constant pressure, no water when the parking function, water leakage detection and compensation functions, water loss Pressure protection; both high and low voltage protection, phase loss protection, leakage protection, overload protection, overheating protection. All pumps in the unit adopt built-in non-return valve, with infinitely variable speed control, no pressure difference, no water hammer caused by instantaneous impact, resulting in burst of water pipe; unit adopts mute inverter, soft start, soft stop, How much electricity consumption, energy efficient. Unmanned to achieve, reduce management costs and reduce operating costs, is the ideal secondary water supply equipment. Further Reading: pump valve pipe fittings Exhibition 2016 Exhibition of Information Industry, Internet (Xiamen) Technology Co., Ltd. Author: Asian pumps Network Editor: Yao Xiaoxia (QQ / micro letter:) http://beng.liuti.cn/ (Hotline :)
Carbon Steel Washer
Low carbon USS flat washers, typically used with Grade 8 or hardened steel bolting, are used under bolt heads or nuts to increase the bearing surface area, or to offer protection so that the nut or bolt can be rotated without distortion of the bearing surface. Flat washers are also used to give tightness to a joint, to prevent leakage, and especially to distribute pressure under the head of a bolt or nut. Dimensional specifications are governed by ASME B18.21.1. USS (United States Standard) flat washers have a larger outer diameter than SAE (Society of Automotive Engineers) flat washers, and can be utilized in nearly any application. ASTM F844 covers the standard specifications for unhardened steel flat washers for general use. Available in zinc plated finish. Zinc plating sacrifices itself, corroding before the base material, offering added corrosion resistance.
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