Oil Sealed Rotary Piston Vacuum Pumps
Rotary Piston Vacuum Solutions for Demanding Applications
Air Centers of Florida offers Kinney rotary piston oil-sealed vacuum pumps, a legacy product line originally developed under the Tuthill name and widely recognized for ruggedness, reliability, and long service life in demanding applications. MD-Kinney rotary piston vacuum pumps are engineered to deliver high pumping capacity at low pressures while handling especially dirty or harsh processes. Models including the KT, KC, KTC, KD, and KDH feature no metal-to-metal contact between the piston and cylinder, reducing wear and ensuring dependable long-term operation. Oil-filled clearances provide effective sealing across a wide pressure range, with configuration options such as duplex or triplex piston designs and air- or water-cooled systems to meet specific operating requirements. Kinney oil-sealed vacuum pumps are widely used in research laboratories, engineering environments, and industrial production facilities, where their compact design, durability, and ability to operate continuously make them a trusted standard—backed by a 30-month manufacturer warranty.
Types of Rotary Piston Vacuum Pumps
KC Rotary Piston Vacuum Pumps
The MD-Kinney KC Series rotary piston oil-sealed vacuum pumps are air-cooled, two-stage systems designed for reliable operation in demanding industrial environments. With no metal-to-metal contact between the piston and cylinder, these pumps deliver long service life with reduced wear. Standard adjustable gas ballast valves allow effective handling of water vapor and other condensable gases, making the KC Series well suited for moisture-laden applications. The KC Series is backed by Kinney’s 100+ years of vacuum technology expertise and includes a 30-month manufacturer warranty.
Available Models: KC5, KC8, KC15
KT Rotary Piston Vacuum Pumps
The MD-Kinney KT Series rotary piston oil-sealed vacuum pumps are single-stage, water-cooled units designed for reliable operation in demanding industrial applications. An integral positive-pressure lubrication system ensures consistent lubrication across all pressure levels, while adjustable gas ballast valves allow effective handling of water vapor and other condensable gases. Optional air-cooling and factory-mounted oil filtration are available to reduce maintenance and increase uptime. The KT Series is backed by Kinney’s 100+ years of vacuum technology expertise and includes a 30-month manufacturer warranty.
Available Models: KT150C, KT300D, KT500D, KT850D
KD & KDH Rotary Piston Vacuum Pumps
The MD-Kinney KD and KDH Series rotary piston oil-sealed vacuum pumps are designed for dependable performance in a wide range of industrial applications. KD models are air-cooled, while KDH models feature water-cooling for enhanced thermal control in more demanding environments. Built on Kinney’s proven rotary piston technology, these pumps deliver reliable operation and long service life and are backed by the longest rotary piston pump warranty in the industry at 30 months.
Available Models: KD30, KD50, KDH130, KDH150
KTC Rotary Piston Vacuum Pumps
The MD-Kinney KTC Series rotary piston oil-sealed vacuum pumps feature a triplex piston design that provides smooth, vibration-free operation and long-term durability. Standard air-cooled models are available, with the KTC-112 offered in a water-cooled configuration and optional air cooling. Adjustable gas ballast valves allow effective handling of water vapor and other condensable gases. Backed by Kinney’s 100+ years of vacuum technology expertise, the KTC Series includes a 30-month manufacturer warranty.
Available Models: KTC21, KTC60, KTC112
Applications
- Evacuating Refrigeration and HVAC Systems
Used for system evacuation, dehydration, and leak testing in refrigeration and HVAC applications. - Vacuum Drying & Degassing Processes
Ideal for transformer oil drying, degasifiers, and moisture removal in industrial drying chambers. - Chemical & Coating Applications
Supports low-pressure chemical vapor deposition (LPCVD), coating, and surface treatment processes. - Metallurgical & Heat Treating Operations
Provides reliable vacuum performance for heat treating, metallurgy, and material processing environments. - Process Chamber Evacuation
Used to evacuate and maintain vacuum in production, research, and industrial process chambers.

















