Varian HS 652 Mod 9499365

The Agilent HS 452 and HS 652 Smart vacuum pumps are dual-stage, rotary vane pumps oil sealed, driven by a single-phase electric motor.

These HS Smart high vacuum pumps are suitable for pumping non corrosive gases.

The HS-652 / 9499365 vacuum pump works with force-feed lubrication, providedby an auxiliary gear-pump driven by the rotor of the vacuum pump itself. This ensures proper lubrication even when pressures are close to atmospheric. The entire pump functional block is immersed in the oil contained in the casing. The oil guarantees perfect sealing of the discharge valves, enters the pump to ensure lubrication and sealing of the parts inside, facilitates heat dissipation and reduces pump noise.

The Agilent HS-652 pump is equipped with a special anti suckback device which automatically isolates the vacuum system when the pump stops. This avoids rises in pressure or oil flow in the vacuum system while air is allowed back into the stator chambers.

The air entering the pump after the anti-suckback device has closed prevents the oil in the casing from filling the stator chambers.

Those Agilent HS652 are designed to operate inside special instruments, and also available with P/N 9499365M002