Python® Pneumatically Operated Pumps

Designed to operate in potentially explosive atmosphere

Python pumps are ideal for applications that require a pump to operate in an potentially explosive atmosphere and can run off regulated natural gas or compressed air. These pumps have the lowest out of pocket cost, are easy to operate and use half the air consumption of other pumps in the market. Plus, the Python's extreme duty plungers, seals and timing valve are designed for years of operation before replacement.

Operating Environment

The Python is designed to operate in environments from -40°F to 175°F (-40°C to 79°C), made entirely from 316 SST parts and are sealed against water and dust.

Accurate Control

Ultra precision stroke adjustment between 1/4 to 1 inch (6.4 to 25.4 mm) ensures accurate injection rates.


Reduced fugitive methane emissions.

Chemical Compatibility

HNBR and FKM plunger packings and check valve seals can handle some of the most aggressive chemicals.

Consistent Operation

Pump cycle rate remains constant regardless of system back pressure..

Plunger Rod

Pythons are offered with Chromex coated plungers as the standard product offering. Ceramic coated plungers are also offered as an option. See page 70 for more information regarding benefits of Chromex and Ceramic plunger rod coatings.


  • CE and ATEX approved.

Plunger Size Air Motor Size Maximum Working Pressure
psi (MPa, bar)
Maximum Pneumatic Inlet Pressure
psi (MPa, bar)
1/4 in 1-1/4 in. 3,500 (24.1, 241) 200 (1.40, 14.0)
3/8 in 1,500 (10.3, 103)
1/2 in 875 (6.0, 60)
1/4 in 1-3/4 in. 7,000 (48.3, 483) 200 (1.40, 14.0)
3/8 in 3,000 (20.6, 206)
1/2 in 1,750 (12.1, 121)
1/4 in 2 in. 9,500 (65.5, 655) 168 (1.16, 11.6)
3/8 in 4,000 (27.6, 276) 200 (1.40, 14.0)
1/2 in 2,250 (15.5, 155)

Pneumatic Electric Pumps

Seals/Plunger Size1/4"3/8"1/2"
1-1/4 in Air Piston (CE Approved)
FKM A25002 A25003 A25004
HNBR A25044 A25045 A25046
1-3/4 in Air Piston (CE Approved)
FKM A25009 A25010 A25011
HNBR A25051 A25052 A25053
2 in Air Piston (CE Approved)
FKM A25016 A25017 A25018
HNBR A25058 A25059 A25060

For technical support on TSeries Pumps, and Sprague products, please contact:

Region:North America
Location of United States: US: LooKupArray ( [userLocation] => US [userRegion] => North America )