Why Close the Discharge Valve Before Starting the Centrifugal Pump?
Detalle
China Ropa
Ropa

Why Close the Discharge Valve Before Starting the Centrifugal Pump?

Reasons for closing the discharge valve

The starting current can be reduced by closing the discharge control valve.
The current will be very high when any motor starts. When the pump is started with an open discharge valve, the discharge head will have greater resistance to the pump. Therefore, the motor must give the pump a larger starting torque, which means that the motor needs to draw more current.
If the discharge valve pump are closed when the pump is started, it means that there is no discharge head and minimum resistance to the pump, and therefore the output current is the smallest. Although the current is greater than the normal value when the motor starts, closing the discharge valve of the centrifugal pump can avoid additional load on the pump.
Situations when the discharge valve can be opened
The nab discharge valves can be opened when there is a check valve. If there is pressure on the discharge side of the centrifugal pump without a check valve when starting, the discharge valve should be closed. With a transparent plastic pipe, leakage can be easily found. It should be used with clear PVC fittings to perform well. It's good to work with clear PVC pipe manufacturer to solve problems together.
Risks of the unclosed discharge valve
Thinking from another aspect, if there are pressures at the discharge end of the pump, it may flow back into the pump before starting. And it will cause backward rotation, which can attract more current and cause damage to the pump. Therefore, it can be prevented by closing the discharge valve of the centrifugal pump when it starts.
If you want to know more about why discharge valve is closed in centrifugal pump , please visit our website.

As a china globe valve manufacturer, we can offer sorts of Globe Valves for sale, anything you need, please leave us a message.

Ubicación : No.20, Xingyu Road, Airport Industrial Zone, Wenzhou city, 325024 P.R. China, 325024 Wenzhou,
Persona a contactar : Wang Maggie, +13 9 58 97 18 12

Buen trato: comprar del vendedor

Visita nuestra guía para una transacción segura! En ningún caso Algomtl no se hace responsable de los anuncios. Sólo la responsabilidad del vendedor o del comprador en caso de litigio está involucrado.
Por favor, lea nuestras condiciones de uso. También puede visitar nuestras preguntas frecuentes y ver nuestra información sobre los riesgos relacionados con la falsificación.
Esta página es acerca de los importadores y exportadores de
Why Close the Discharge Valve Before Starting the Centrifugal Pump?

Buscar en la categoria : Ropa
Buscar en la categoria :
valve, discharge, pump, starting, before, close, centrifugal
Francia 518102 Bienes de equipo
Foto no disponible

Wednesday 06 August 2014

Caractéristiques LED 35W Rail d'éclairage: 1 Source de lumière: OriginalSharp COB (15W) et CREE COB LED (25W 30W 35W),> 80lm / W. 2. IRC élevé (> 90Ra), très proche de la lumière halogène classique. Réflecteur 3.Unique, la distribution de la lumière parfaite, sans aucune ombre...

Shenzhen Encore Optoelectronic Technology Co., Ltd.

  • 518102 - xixiang
  • +18 6 75 53 83 59
Francia 92600 Varios / Descuento
DELTA PARTNER'S : Sandale minceur LA CELLULETTE est la 1°

Sunday 02 September 2007

LA CELLULETTE est la 1° sandale minceur avec tests d'efficacité effectués par un laboratoire Français agréé, prouvant un amincissement significatif en 28 jours d'utilisation. Une efficacité amincissante et anti capitons prouvée scientifiquement. Cette sandale présente une semelle...

deltapartners

  • issy
  • 92600 - ASNIERES SUR SEINE
  • +33 1 41 11 34 34
Francia 529000 Bienes de equipo
2-Wire Flat Cool White LED Rope Light

Saturday 19 July 2014

Cool White LED with color temperature 7000K to 7500K implies a mild blue tint in the white glow. Cool White is preferred in many applications because the light they output makes items illuminated appear crisper. Cool White is often preferred in bathrooms and other task areas. Note...

Real Green lighting Company

  • Bonny Chan
  • 529000 - Jiangmen City
  • +15 6 02 20 39 93