Samson

Samson 209B Pumpmaster 2 3:1 Pump for 55 Gallon Drum

Name: Samson 209B Pumpmaster 2 3:1 Pump for 55 Gallon Drum
Brand: Samson
SKU: 209B

The Samson 209B Pumpmaster 2 delivers reliable 3:1 ratio lubricant dispensing for 55-gallon drums with double-acting air operation.

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Overview

The Samson 209B Pumpmaster 2 is a purpose-built 3:1 ratio air-operated pump engineered for dispensing lubricants directly from 55-gallon drums. Its double-acting design means fluid is pushed on both the upstroke and downstroke of the piston, resulting in smoother, more consistent flow compared to single-acting alternatives. This makes it a practical choice for automotive shops, maintenance facilities, and mobile lube trucks where reliable fluid transfer is essential to daily operations.

Mounting is handled through a 2" NPTM adjustable bung adaptor, which threads securely into standard drum openings for a tight seal during operation. A built-in pressure relief port provides an important layer of protection against system over-pressurization. The pump is designed for medium-pressure lubricant applications and pairs well with small dispensing systems. Its straightforward air-operated mechanism means there are no electrical components to worry about in shop environments where compressed air is readily available.

Specifications

Brand

Samson

Model

209B

Pump Type

Double Acting Air Operated

Pressure Ratio

3:1

Application

Lubricant Dispensing

Mounting

2" NPTM Adjustable Bung Adaptor

Container Compatibility

55 Gallon Drum

Safety Feature

Built-in Pressure Relief Port

Pros & Cons

👍 Pros

Double-acting design delivers fluid on both strokes for smoother, more consistent output
Built-in pressure relief port adds safety against over-pressurization
Adjustable 2" NPTM bung adaptor fits standard 55-gallon drum openings
3:1 ratio provides adequate medium-pressure output without excessive air consumption
Suited for both mobile units and fixed small-system installations

👎 Cons

Requires an external compressed air supply, adding to setup requirements
3:1 ratio limits it to medium-pressure applications and may not suit high-pressure dispensing needs
No included hose or nozzle — dispensing accessories must be purchased separately
Designed specifically for 55-gallon drums and not easily adapted to other container sizes

Frequently Asked Questions

What type of containers does the Samson 209B mount to?

The 209B mounts to 55-gallon drums using a 2" NPTM adjustable bung adaptor, allowing a secure fit on standard drum openings.

What is the pump ratio and what does that mean for output?

The 3:1 ratio means for every 1 PSI of air input, the pump delivers 3 PSI of fluid output pressure, making it suitable for medium-pressure lubricant dispensing.

Does the Samson 209B have any built-in safety features?

Yes, it includes a built-in pressure relief port that helps prevent over-pressurization during operation.

What powers the Samson 209B pump?

It is a double-acting air-operated pump, meaning it requires a compressed air supply and delivers fluid on both the up and down strokes for consistent flow.

What types of fluids is this pump designed to handle?

The 209B is designed specifically for dispensing lubricants such as oils and similar fluids from drums in mobile units and small dispensing systems.