Pistons
The BullDog PistonBulldog Mud Pump Piston, Mud Pump Parts
Over 60 years ago, Southwest Oilfield Products was founded on mud pump piston innovation and we continue to carry this legacy forward with the introduction of our Bulldog piston. This rugged and reliable piston is engineered for high temperature service and other demanding drilling conditions. Key features include:
- Engineered for high temperature & pressure service (300°F / 7500PSI)
- Suitable for oil, synthetic or water-based muds
- Excellent chemical and abrasion resistance
- Contains proprietary blend of lubricating agents to reduce friction and enhance running life.
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BullDog Piston Part Numbers
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4.5"
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5.0"
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5.5"
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6.0"
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6.5"
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7.0"
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78BDB
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81BDB
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83BDB
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85BDB
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87BDB
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89BDB
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The Fail-Safe Piston
In 1947, the first bonded piston was introduced into the market; since then, the Fail-safe piston has remained virtually unchanged. The one-piece bonded piston design eliminates leakage points and is resistant to abrasive fluids. This fail-safe piston seals off to greater diameters as the liner wears.
- Performs best in water-based muds but can be used in oil-based muds
- Suitable for moderate temperature service (Less than 175°F)
- Excellent Chemical and Abrasion Resistance
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Fail-Safe Piston Part Numbers
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4"
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4.5"
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5"
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5.5"
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6.0"
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6.5"
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7.0"
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76BFS
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78BFS
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81BFS
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83BFS
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85BFS
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87BFS
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89BFS
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The Dual-Duro PistonMud Pump Piston, Mud Pump Parts
This premier piston has been in service since 1985, providing unmatched performance under extreme drilling conditions. It performs well in exotic drilling fluids and moderate temperatures.
Made of dual-durometer polyurethane, this piston is designed to resist extrusion thus extending the life of the piston.
- Made with durable Polyurethane elastomer
- Performs best in oil-based mud
- Suitable for moderate temperature service (Less than 175°F)
- Excellent Chemical and Abrasion Resistance
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Dual-Duro Piston Part Numbers
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4"
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4.5"
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5.0"
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5.5"
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6.0"
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6.5"
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7.0"
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76BDD
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78BDD
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81BDD
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83BDD
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85BDD
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87BDD
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89BDD
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The RnR Piston
Southwest’s RnR Piston is a renewable rubber piston in that the rubber on this non-bonded piston can be replaced by a new piston rubber once the old one has reached its usable life. The proprietary blend of rubber and fabric used in the RnR piston resists the pinching and extrusion that commonly occurs in the heel of the piston. The use of synthetic fabric in the Southwest RnR piston virtually eliminates the loss of heel strength, caused by water absorption allowing the piston to achieve a higher level of performance compared to competing designs.
- Available for single and double-acting pump designs
- Replaceable piston rubber reduces operating expense
- Suitable for water and some synthetic-based drilling muds
- Synthetic fabric yields a stronger, denser, and stiffer heel for superior performance
Full traceability is provided with all products sold, including pistons. Traceability markings include: operators ID, packers ID, date of urethane pour, part number of piston, work order number, Made in USA brand, and SWOP logo.
The Black Cat Piston
Southwest's Black Cat piston is a premier nitrile-compound piston that can be utilized in a variety of drilling muds. Developed to handle the numerous chemicals found in drilling mud today, the Black Cat piston elastomer has excellent abrasion, chemical, and heat resistance.
- Excellent liner wear characteristics
- Suitable for moderate temperature service (180°F)
- Can be used in water, some oil, and synthetic drilling muds
- HIgh resistance to chemcial breakdown, tearing and abrasion
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Black Cat Piston Part Numbers
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4"
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4.5"
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5"
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5.5"
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6.0"
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6.5"
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7.0"
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76BBC
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78BBC
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81BBC
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83BBC
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85BBC
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87BBC
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89BBC
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