Stenner Pump Adjustable Dosing Pump 2-40 gpd 100 psi Model 85MJH7A1S

Description

Product Overview

The Stenner Adjustable Dosing Pump is engineered for high‑precision fluid handling in demanding laboratory environments. With a variable flow capability ranging from 2 to 40 gallons per day, the pump delivers consistent dosing performance across a broad spectrum of applications, from chemical synthesis to biological assays. Its robust construction features a stainless‑steel housing that resists corrosion and wear, while the internal components are machined to tight tolerances to maintain accuracy over prolonged use. The pump operates at a maximum pressure of 100 psi, providing the headroom needed for viscous liquids and higher‑resistance flow paths. Integrated with a Number 7 Santoprene tube, the system includes 20 feet of 1/4″ white tubing, offering flexibility in routing and minimizing dead volume. The unit runs on standard 120‑volt, 60‑Hz power, making it compatible with typical laboratory power supplies. Dimensions of 10.6 × 5.3 × 6 inches and a lightweight design of 0.01 ounces ensure easy placement on benchtops or within compact workstations. The pump’s adjustable head allows users to fine‑tune flow rates quickly, reducing setup time and enhancing reproducibility. Designed for durability, the pump’s seals and diaphragms are replaceable, extending the service life and supporting sustainable laboratory practices. Overall, the Stenner Adjustable Dosing Pump combines precision engineering, user‑friendly operation, and reliable performance to meet the exacting standards of modern scientific research.

Usage

This dosing pump excels in a variety of laboratory settings, including chemistry labs, biotechnology facilities, and quality‑control stations. It is particularly well‑suited for applications that require precise metering of reagents, such as titration experiments, sample preparation for chromatography, and controlled addition of catalysts in reaction vessels. The pump’s ability to handle flow rates as low as 2 gpd makes it ideal for micro‑dosing tasks, while the upper limit of 40 gpd supports larger‑scale processes without sacrificing accuracy. Users can deploy the pump in automated workflows, integrating it with programmable logic controllers or laboratory information management systems to achieve seamless, repeatable dosing cycles. The included Santoprene tubing is chemically resistant, allowing the pump to handle a wide range of solvents, acids, and bases without degradation. Its compact footprint enables placement on crowded benchtops, and the adjustable head simplifies on‑the‑fly adjustments during experiments. Whether operating under sterile conditions in a biosafety cabinet or within a temperature‑controlled incubator, the pump maintains performance, making it a versatile tool for researchers, technicians, and engineers alike.

Why Choose Us

Choosing the Stenner Adjustable Dosing Pump means investing in a product backed by decades of expertise in fluid handling technology. Stenner Pump Company has a reputation for delivering reliable, high‑quality equipment that meets rigorous industry standards. Each pump undergoes comprehensive testing to verify flow accuracy, pressure tolerance, and long‑term durability before it reaches the customer. The design incorporates user‑centric features such as an intuitive adjustable head, clear flow indicators, and quick‑release tubing connections, reducing the learning curve for new users. Our commitment to quality is reflected in the robust warranty and responsive technical support team, ready to assist with installation, troubleshooting, and maintenance. Additionally, the pump’s modular components allow for easy part replacement, minimizing downtime and supporting sustainable laboratory operations. By selecting this pump, laboratories benefit from consistent dosing performance, reduced operational costs, and the confidence that comes from partnering with a trusted manufacturer dedicated to scientific excellence.

Key Features

• Variable flow from 2 to 40 gpd ensures precise dosing for both micro‑ and macro‑scale applications.
• Maximum pressure rating of 100 psi accommodates viscous liquids and high‑resistance flow paths.
• Includes 20 ft of 1/4″ Santoprene tubing for flexible installation and chemical resistance.
• Compact stainless‑steel housing provides durability while saving bench space.
• Responsive customer support and easy‑to‑replace seals extend product lifespan and reduce downtime.

FAQ

What types of liquids can the pump handle?

The pump is compatible with a wide range of liquids, including aqueous solutions, organic solvents, acids, and bases, thanks to its chemically resistant Santoprene tubing and stainless‑steel construction.

How do I adjust the flow rate?

Simply turn the adjustable head knob clockwise to increase flow or counter‑clockwise to decrease it. The flow indicator provides a visual reference, allowing fine‑tuning without the need for additional tools.

Is the pump suitable for automated systems?

Yes, the pump can be integrated with programmable controllers and laboratory automation software. Its standard 120 V power requirement and straightforward control interface make it easy to incorporate into automated dosing sequences.

What maintenance is required?

Regular maintenance includes inspecting the tubing for wear, cleaning the pump head to prevent residue buildup, and replacing seals or diaphragms as needed. All replaceable parts are readily available from Stenner Pump Company.

Can the pump operate in a sterile environment?

The pump’s design allows it to be placed inside biosafety cabinets or sterile workstations. Using sterile‑compatible tubing and following standard aseptic techniques ensures contamination‑free operation.