The STP 125 is Gardner Denver’s industry‑preferred 3‑A certified sanitary stainless steel positive displacement pump for tank trailer applications requiring hygienic, reliable, and efficient liquid transfer. Purpose‑built for food‑grade and chemical transport, the STP 125 combines sanitary construction with high performance, simplified maintenance, and flexible installation options.
With non‑contacting rotors, multiple seal configurations, and a quick‑strip design, the STP 125 delivers clean, dependable pumping for demanding sanitary and chemical transport operations.
The non‑contacting rotor design protects product integrity and supports strict food and chemical handling requirements.
Choose from O‑ring, double‑lip, or mechanical seals to match the pump to specific liquids, viscosities, and operating conditions.
Seals can be replaced without removing the pump casing, reducing downtime and simplifying routine maintenance.
The tri‑lobe rotor profile minimizes pulsation and noise while maintaining consistent flow even with viscous products.
A triple roller bearing design supports discharge pressures up to 145 PSI, extending seal life and supporting demanding transfer applications.
Side, bottom, and top mounting options allow the STP 125 to integrate easily into a wide range of tank trailer configurations.
The STP 125 is engineered for sanitary and chemical liquid transport, including:
Its hygienic construction makes it ideal for operations requiring strict contamination control.
The STP 125 supports multiple drive configurations:
Multiple port and seal configurations are available to accommodate a wide range of liquids, viscosities, and operating requirements.
Sanitary liquid transport demands more than flow. Learn how pump design, product handling, maintenance access and performance affect tanker operations, and explore the Gardner Denver STP125.
.png?format=pjpeg&width=1600&quality=75&auto=webp)
Explore the top five reasons the STP125 stainless steel food-grade pump delivers performance, compliance, and efficiency for liquid bulk transport applications.
Downtime impacts productivity. Gardner Denver supports the STP 125 through a nationwide network of factory‑trained distributors and certified technicians available 24/7.
From installation through lifecycle service, Gardner Denver ensures sanitary liquid bulk operations run reliably and efficiently.
The STP 125 is 3‑A Sanitary certified and uses non‑contacting tri‑lobe rotors to prevent contamination. Its stainless‑steel construction and Clean‑In‑Place (CIP) compatible design support hygienic handling of food‑grade and chemical liquids.
The STP 125 is suitable for:
The pump supports flow rates up to 280 GPM and discharge pressures up to 145 PSI, making it suitable for a wide range of viscosities and transport requirements.
The pump can be configured with O‑ring, double‑lip, or mechanical seals, allowing operators to match the seal type to specific liquids and operating conditions.
The STP 125 features front‑loaded seals that can be replaced without removing the pump casing. This simplifies maintenance and minimizes time out of service.
Yes. The pump supports:
This flexibility helps integrate the pump into various tank trailer setups.
The pump is suitable for liquids up to 210°F, supporting hot or viscous product transfer.
Yes. Support includes:
Yes. Its non‑contacting rotors, sanitary certification, and stainless‑steel construction make it ideal for operations requiring strict contamination control.
Reach Out to Us