800-233-7718 301-682-3390 SERVICES STH has a skilled team of inside support staff, Service Coordinators and factory certified Technicians as well as an Aftermarket account team to help you with your commercial pump service applications and equipment replacement needs. For Service, Call (800) 233-7718 FIRE PUMPS/CONTROLLERS: Fire Pump Repacks & Repairs Controller and Transfer Switch Troubleshooting Motor Replacement & Repair Failed Fire Pump Analysis Fire Pump Flow Management Main Relief Valve Repair Water Savings Analysis General PM Programs Coupling Replacement DOMESTIC BOOSTERS: PRV Rebuilds VFD Conversions HydroTank Bladder & Full Tank Replacements Control Sequencing & Troubleshooting Mechanical Seal Replacement Motor and Pump Replacement General PM Programs HVAC PUMPS: Pump Repairs Pump/Motor Replacement Mechanical Seal Replacement Bearing Replacement General PM Programs WATER FILTRATION SYSTEMS: Point of Entry Point of Use Water Bottle Filters Cooling Tower Full Flow, Side Stream, and Sweeper Systems Legionella Prevention General PM Programs LASER ALIGNMENT: All Pumps SUMP, SEWAGE & SEPTIC: Pump Troubleshooting Controller Troubleshooting Pump Down Testing & Analysis General PM Programs EMERGENCY PRODUCT/SERVICES: Stock Pumps Rental Pumps WATER USAGE ANALYSIS: Domestic Water Boosters Storm Water PUMP ENERGY AUDITS: All Pumps RENTAL PUMP PROGRAM Pumps are Available in 208 or 460 Volt Do you want to avoid the downtime that comes with a booster change-out Is it an emergency? If your booster is down, we have you covered At STH, our ever-growing line of rental pumps can provide flows up to 120 GPM and pressure boosts of up to 170 PSI! PROVIDED BY STH Delivery Wiring of VFD Controller using existing booster electrical feed Programming the VFD to the building needs STH Startup Return visit to de-energize the rental Removal of rental unit from site PROVIDED BY OTHERS Installing the STH temporary pump and piping it into the system Mechanical seal failure due to water quality issues or misuse Removing temporary pump and piping from the system Any damage to any of these rental components to be the sole responsibility of the customer. Contact Us QUICK LINKS Products Manufacturers Engineering Parts Contact About NEWS MTH Pumps Introduces the T31 Pump in 3-Phase Open Drip Proof April 13, 2021 One Small Box Saves the Day December 2, 2020 Grundfos Hydro MPC HVAC System Solves Contractor and Engineer Challenges and is named 2020 Product of the Year Award Winner by Engineered Systems. October 9, 2020 CONTACT US 97 Monocacy Blvd Suite D Frederick, MD 21701 P: (301) 682-3390 T: (800) 233-7718 F: (301) 682-3391 Copyright ©2021 STH Inc. All Rights Reserved. Privacy Policy. Designed by ArachnidWorks, Inc.