Diesel Double Diaphragm Pumps

MSP DD-6 — 6-in Double-Diaphragm Pump

A 6-inch diesel double-diaphragm trailer pump with blue diaphragms and a 10 psi maximum diaphragm operating limit. The factory technical sheet lists 550 gallons per minute at the reference engine speed and solids passage up to 4 inches.

Specs & manuals ↓
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Estimated equipment rental only. Delivery, taxes and applicable fees quoted separately. Final pricing confirmed with dispatch.

Specifications

Equipment

Manufacturer
Myers-Seth Pumps (MSP)
Model
DD-6 / blue diaphragms

Selected configuration and limits

Model
DD-6
Diaphragm configuration
Blue diaphragms; selected factory technical-sheet configuration
Maximum diaphragm operating pressure
10 psi; factory operating limit
Suction / discharge
6 in / 6 in
Maximum flow
550 US gal/min at 1,800 engine rpm; separate from pressure limit
Solids passage
4 in
Maximum suction lift
28 ft
Air-handling capacity
60 cfm
Maximum operating liquid temperature
160°F / 71.1°C
Pump speed
60 rpm at gearbox; 1,800 rpm engine operating reference

Engine and trailer

Engine
Hatz 1D90EZ
Engine type
Single-cylinder, air-cooled diesel
Published engine output
10.3 hp at 2,000 rpm
Fuel tank
71 US gal
Published package weight
2,240 lb; dry/wet basis not specified
Overall dimensions
112 × 74 × 64 in; L × W × H
Mounting
Open trailer
Engine protection
Low oil-pressure shutdown
Monitoring
Instrument panel with hour meter

Pump construction

Pump housing
A36 steel
Flapper valves
Weighted full-flow reinforced rubber
Suction / discharge valve seats
3/8-in stainless steel plate
Lifting
Heavy-duty single-point lifting bale
Securing
Four heavy-duty tie-down points
Fuel access
Lockable cap and fuel gauge

Higher-pressure comparison

Larger double-diaphragm alternative
MSP DD-8; 8-in suction and discharge ports
DD-8 operating pressure
40 psi maximum working pressure; distinct larger package
Connection difference
DD-8 has larger ports; no connection equivalence or adapter supply is implied

Equipment Details

Capabilities & Features

  • A double-diaphragm mechanism handles mixed liquid, air and solids.
  • Pushrod covers and accessible cleanouts support field servicing.
  • For a higher-pressure comparison, the DD-8 has an independently specified 40 psi working limit and larger eight-inch ports.
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