V Series Auto Booster Pumps c/w JAPAN Switch

Product Features :

  • Pre-pressure one-piece forming diaphragm pressure tank with good appearance and corrosive resistant.
  • Install overload protector in motor’s circuit to protect motors from burn out
  • Special copper water pump flow channel design with high pumping efficiency.
  • May select stainless steel water pump to avoid jamming shaft during long term idle.

Applications :

  • For households, washing machines, and toilets pressure boosting use.
  • Water supply for apartments and residences.
  • Garden sprinkler systems.
  • Barber shops and restaurants pressure boosting use.

Operating Conditions :

  • Ambient temperature: +0℃~+40℃.
  • Liquid temperature: +0℃~+40℃.
  • Suction Head : Max. 6M
  • Before using the pump, be sure the inlet pressure setting is lower than on setting of pressure switch.


  • V400AS – Aluminium motor shell and stainless steel pump
  • V400A – Aluminium motor shell steel pump
  • V400AP – Aluminium motor shell steel pump with Anti-Rust Treatment
  • V400S – Cast iron motor shell stainless steel pump
  • V400AH/460AH – Equip with TAIWAN Switch, c/w Bronze Impeller
  • All models equip with SANWA DENKI Switch, made in Japan except last alphabet affix H
  • All models c/w Bronze Impeller
ModelPower (HP)Voltage (V)Factory Pressure SettingMax. Head (M)Max. Flow (L/min)Inlet & Outlet
On (kg/cm2)Off (kg/cm2)
V2001/42401.02.027323/4" x 3/4"
V200A1/42401.02.027323/4" x 3/4"
V400APJ1/22401.82.835401" x 1"
V400A1/22401.82.835401" x 1"
V400AHJ1/22401.82.835401" x 1"
V400S1/22401.82.835401" x 1"
V400AS1/22401.82.835401" x 1"
V200AHJ1/42401.02.027323/4" x 3/4"
V460AHJ1/22401.82.835401" x 1"
V80012402.03.238561" x 1"