Southwest’s RnR Piston

1-100% interchangeable with the most common brands of mud pumps.
2-High tensile strength.
3-Maximud operating temperature up to 250°F.
4-Extended service life.
5-Customized pistons according to drawings can be produced, too.

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Description

Southwest’s 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.

The RnR piston is suitable for water and some synthetic- based drilling muds.

ype: Bonded pistons, Replaceable pistons
Material of piston hub: forged by 45# steel or 40Cr with hardening and tempering
Material of piston cup: urethane NBR rubber
Surface treatment of piston hub: by phosphating and by Oxidizing
Size: 3 ~ 8 in

SIZE COMPLETE PISTON PART NO. END PLATE PART NO. PISTON RUBBER PART NO. PISTON CORE PART NO. PISTON O- RING PART NO. PISTON BUSHING PART NO. SNAP RING PART NO.
4″ 40KH01-4 3440K 40K 40KH01-4C 568-225 2932 K921129
4 1/2″ 44KH01-4 4244K 44K 44KH01-4C 568-225 2932
4 1/2″ 44BH01-4 4446B 44B 44BH01-4C 568-225 2932 B921129
5″ 50BH01-4 5052B 50B 50BH01-4C 568-225 2932
5 1/2″ 54BH01-4 54B 54BH01-4C 568-225 2932
6″ 60BH01-4 5456B 60B 60BH01-4C 568-225 2932
6 1/4″ 62BH01-4 6200B 62B 62BH01-4C 568-225 2932
6 1/2″ 64LH01-4 6466L 64L 64LH01-4C 568-225 2932 L921129
6 3/4″ 66LH01-4 66L 66LH01-4C 568-225 2932
7″ 70LH01-4 7072L 70L 70LH01-4C 568-225 2932

 

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