The pneumatic diaphragm pump does not operate or operates very slowly: 1. Check the filter or air filter of the air inlet end of the diaphragm pump for impurities. 2. Check if the diaphragm pump air valve is stuck with the cleaning fluid cleaning valve. The pneumatic diaphragm pump has no action. Or it works very slowly: A ring split at one point and bent into a helical shape. This causes the washer to exert a spring force between the fastener's head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation. Applicable standards are ASME B18.21.1, DIN 127 B. Spring Washer,Spring Lock Washer,Spring Steel Washer,Stainless Steel Spring Washers Taizhou Risco Stainless Steel Products Co.,Ltd , https://www.riscofastener.com
1. Check the filter or air filter of the air inlet end of the diaphragm pump for impurities.
2. Check if the diaphragm pump air valve is stuck with the cleaning fluid cleaning valve.
3. Check if the diaphragm pump air valve is worn and replace it with new parts if necessary.
4. Check the condition of the sealing parts of the center of the diaphragm pump. If the wear is severe, the sealing effect will not be achieved, and the air will be discharged from the air outlet end. Please use only the GLYD ring due to its special construction.
5. Check if the piston activity in the diaphragm pump air valve is normal.
6. Check the type of diaphragm pump lubricant. If the added lubricant is higher than the recommended viscosity, the piston may get stuck or operate abnormally. It is recommended to use a light and anti-freezing lubricant. (ISO grade 15/5WT resistance Frozen oil)
The pneumatic diaphragm pump has action, but the flow is small or there is no liquid at all:
1. Check the cavitation of the pneumatic diaphragm pump to reduce the speed of the pump and let the liquid enter the liquid chamber.
2. Check if the valve ball is stuck. If the operating liquid is incompatible with the elastomer of the pump, the elastic body will expand. Please replace the elastomer with the appropriate material.
3. Check if the joint of the inlet of the pneumatic diaphragm pump is completely locked and not leaking, especially the clamp near the inlet end ball needs to be locked.
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Spring washers are a left hand helix and allow the thread to be tightened in a right hand direction only, i.e. a clockwise direction. When a left hand turning motion is applied, the raised edge bites into the underside of the bolt or nut and the part that it is bolted to, thus resisting turning. Therefore, spring washers are ineffective on left hand threads and hardened surfaces. Also, they are not to be used in conjunction with a Flat Washer under the spring washer, as this isolates the spring washer from biting into the component that will resist turning.
The use and effectiveness of spring lock washers has been debated, with some publications advising against their use on the grounds that, when tight, the washer is flat against the substrate and gives no more resistance to rotation than a normal washer at the same torque. However, a spring washer will continue to hold the bolt against the substrate and maintain friction when loosened slightly, whereas a plain washer will not.
The benefit of spring lock washers lies in the trapezoidal shape of the washer. When compressed to loads near the proof strength of the bolt, it will twist and flatten. This reduces the spring rate of the bolted joint which allows it to maintain more force under the same vibration levels. This prevents loosening.