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Samson 551010 DF100 1
Samson

Samson 551010 DF100 1" Aluminum/Acetal Diaphragm Pump

The Samson DF100 aluminum diaphragm pump delivers up to 28 GPM flow for reliable transfer of water-based fluids and waste oil.

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Overview

The Samson 551010 DF100 is a 1-inch air-operated diaphragm pump engineered for the reliable transfer and evacuation of water-based fluids. With a maximum free flow capacity of 28 gallons per minute, it handles antifreeze, lubricants, diesel, and waste oil with consistent performance. The pump's aluminum body provides a sturdy, corrosion-resistant housing that stands up to the demands of automotive service bays, industrial shops, and fluid management operations.

Internally, the DF100 uses TPE (thermoplastic elastomer) diaphragms that deliver both chemical resistance and the flexibility needed for smooth pumping cycles, while acetal check balls ensure reliable sealing with each stroke. The 1-inch NPTF inlet and outlet ports use standard threading for straightforward connection to existing hoses and fluid lines. Because it runs on compressed air rather than electricity, the DF100 is well-suited for environments where flammable fluids are present and spark-free operation is essential.

Key Features

Diaphragm Pump

28 Gallons/Minute

1" NPTF inlet and outlet ports

For water based fluids like antifreeze, lubricants, diesel and waste oil

Specifications

Brand
Samson
Model
551010
Type
Diaphragm Pump
Maximum Free Flow Capacity
28 Gallons/Minute
Inlet/Outlet Ports
1" NPTF
Body Material
Aluminum
Diaphragms
TPE
Check Balls
Acetal
Suitable Fluids
Water-based fluids (antifreeze, lubricants, diesel, waste oil)

Pros & Cons

👍 Pros

  • Aluminum body construction provides corrosion resistance and long-term durability
  • 28 GPM maximum flow rate handles moderate-volume fluid transfer efficiently
  • Compatible with a wide range of water-based fluids including diesel, antifreeze, and waste oil
  • TPE diaphragms offer good chemical resistance and flexibility for reliable pumping action
  • 1-inch NPTF ports use standard threading for easy integration into existing fluid lines

👎 Cons

  • 1-inch port size may limit throughput for high-volume industrial applications requiring larger connections
  • Not suitable for gasoline or highly corrosive chemical transfer
  • Acetal check balls may wear faster than stainless steel alternatives in heavy-duty continuous use
  • Requires a compressed air source, which adds to the overall equipment needed for operation

Frequently Asked Questions

It is designed for water-based fluids including antifreeze, lubricants, diesel, and waste oil. It is not intended for gasoline or highly corrosive chemicals.
The DF100 delivers a maximum free flow capacity of 28 gallons per minute, which is suitable for moderate-volume fluid transfer and evacuation tasks.
Both the inlet and outlet ports are 1-inch NPTF (National Pipe Thread Fuel), a standard threading used in fluid handling equipment.
The diaphragms are made of TPE (thermoplastic elastomer) for flexibility and chemical resistance, while the check balls are made of acetal for durability and consistent sealing.
No, the DF100 is an air-operated diaphragm pump, meaning it runs on compressed air rather than electricity, which makes it suitable for use in environments where electrical sparks are a hazard.

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