Overflow valve description
The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure by adjusting it, and relies on the energy of the medium itself to keep the outlet pressure stable automatically.
Matters need attention
Noise generated by holes
When the air is sucked into the oil for various reasons, or when the oil pressure is lower than atmospheric pressure, some of the air dissolved in the oil will precipitate to form bubbles, these bubbles are larger in the low pressure area, when the oil flows to the high pressure area, the volume is compressed, the volume suddenly becomes smaller or the bubble disappears; On the contrary, if the volume is small in the high pressure area, and when the flow to the low pressure area, the volume suddenly increases, and the bubble volume in the oil changes rapidly. The sudden change in the volume of the bubble will produce noise, and because this process occurs in an instant, it will cause local hydraulic shock and vibration. The pilot valve and the main valve port, the oil flow rate and pressure change greatly, it is easy to appear cavitation phenomenon, resulting in noise and vibration.
| Manufacturer | XYZ Company |
| Body Style | Straight |
| Pressure Range | 0-150 psi |
| Inlet Type | Side |
| Media | Gas, Liquid |
| Connection Type | Threaded |
| Size | 1/2 inch |
| End Connection | Female NPT |
| Type | Pilot Operated |
Noise from hydraulic shock
When the pilot relief valve is unloaded, the pressure shock noise will occur due to the sudden pressure drop of the hydraulic circuit. The more high pressure and large capacity of the working conditions, the greater the impact noise, which is due to the relief valve unloading time is very short and hydraulic impact caused by the unloading, due to the rapid change of oil flow rate, resulting in pressure sudden change, resulting in the impact of pressure waves. The pressure wave is a small shock wave that produces little noise itself, but it is transmitted to the system with the oil, and if it resonates with any mechanical part, it may increase the vibration and enhance the noise. Therefore, when the hydraulic impact noise occurs, it is generally accompanied by system vibration.
FAQ
Q1: Wonder if you accept small orders?
A1: Do not worry. Feel free to contact us .in order to get more orders and give our clients more convener ,we accept small order.
Q2: Can you send products to my country?
A2: Sure, we can. If you do not have your own ship forwarder, we can help you.
Q3: What's your payment terms ?
A3: By T/T,LC AT SIGHT,100% full payment.
Q4: How long is your production lead time?
A4:It depends on product and order qty. Normally, it takes us 15 days for an order with MOQ qty.
Q5: When can I get the quotation ?
A5: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation.Please call us or tell us in your mail, so that we could regard your inquiry priority.
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ANSI Adjustable Rexroth Overflow Valve DB20-1-52 100X Images
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