SIHI LPH 85353 2-Stage Liquid Ring Vacuum Pump 1600 CFM 28 Hg 150HP 460V

SIHI LPH 85353 2-Stage Liquid Ring Vacuum Pump 1600 CFM 28 Hg 150HP 460V

The SIHI LPH 85353 is a heavy-duty two-stage liquid ring vacuum pump capable of 1600 CFM at 28" Hg in dry air. It is mounted on a self-contained anti-vibration skid and driven by a 150HP Siemens PE 21 Plus Premium Efficiency motor, making this a complete, ready-to-connect vacuum system for large-scale industrial applications. Cast iron construction with steel impellers ensures durability in demanding continuous-duty environments.

Specifications & What's Included

• Manufacturer: SIHI
• Model: LPH 85353
• Type: 2-Stage Liquid Ring Vacuum Pump
• Vacuum Capacity: 1600 CFM @ 28" Hg in Dry Air
• Motor: Siemens PE 21 Plus Premium Efficiency
• Motor Horsepower: 150 HP
• Motor Frame: 447T
• Motor Speed: 885 RPM
• Voltage: 460V
• Phase: 3-Phase
• Frequency: 60 Hz
• Full Load Amps: 186 A
• Inlet / Outlet: 6" x 6" flanged connections
• Water Supply Required: 50 GPM (seal water)
• Construction: Cast iron body with steel impellers
• Mounting: Self-contained anti-vibration skid
• Skid Footprint: Approximately 154" x 65" x 94" (approx. 15 ft x 6 ft floor footprint)
• Control Panel: Thornton 200CR (mounted on skid, LCD display present)
• Motor Country of Manufacture: Mexico (Siemens)
• Separator vessel included (visible on skid, right side)

Applications

Liquid ring vacuum pumps like the SIHI LPH series are widely used in applications where a continuous, high-capacity vacuum is required in the presence of vapors, condensable gases, or entrained liquids — conditions that would damage dry-running pumps. Common industrial uses include paper and pulp dewatering, chemical processing, pharmaceutical drying, power plant condenser exhausting, and large-scale industrial degassing. The two-stage design of the LPH 85353 achieves deeper vacuum levels (up to 28" Hg) than single-stage units, making it well suited for processes requiring sustained high vacuum across large flow volumes. SIHI (now part of the Flowserve group) has been a leading manufacturer of liquid ring vacuum pumps for decades, and the LPH series represents their larger industrial platform designed for continuous-duty, high-throughput installations. At 1600 CFM capacity, this unit is sized for central vacuum systems in large manufacturing plants, hospitals, or industrial facilities.