Description

The RMKP-550 series triplex mud pumps are fully interchangeable with the equivalent OEM. Pump features a rigid steel fabricated frame with a casted suction manifold with a single front inlet or fabricated two-sided inlet. Discharge connection may be made from either side of the pump. Includes strainer block with pulsation dampener, mounted on a pony skid.

There are six sizes of liners in I.D. All these liners are the same in O.D.

There are two types of liners: high-grade liner and plain liner. The high – grade liner is made of carbon steel as a base metal, which is cast or inserted with high – chrome alloy – steel to ensure wearability, and the hardness has reached the HRC60-65. The plain liner is made of low – carbon steel which is carburized and quenched inside to enhance the surface hardness.

The liner can be inserted from the liner room in front of the cylinder. After the liner has been fixed, the liner and the liner room should be fixed in three holes in the front plate of the rack and should be connected with the cylinder with bolts.

No. Description QtyPer
Pump		 Part No.
COUPLING &LINER PISTON ASSEMBLY 1 RM-C77013
1 COUPLING-PLUNGER 3 RM-200PZJ092
2 SCREW,Coupling Plunger 6 RM-655EE22S
3* NUT,Flanged 6 RM-50AW35
4 PISTON ROD,Incl.Ref.#5 3 RM-201PZG060
5 LOCKNUT 3 RM-50V14
6 CLAMP-LINER 3 RM-1PV14
7 GASKET,Liner to Cylinder 3 RM-25AT37
8 WRENCH 1 RM-99L11
No. Description QtyPer
Pump		 Part No. Part No. Part No Part No Part No. Part No Part No.
COUPLING & LINER PISTON ASSEMBLY RM-C77013
7” 6-1/2” 6” 5-1/2” 5” 4-1/2” 4*
8 LINER 3 RM-PY13970 RM-PY13965 RM-PY13960 RM-PY13955 RM-200PZG456 RM-201PZG456 RM-300PZG456
O-RING 3 RM-25AH1 RM-25AH1 RM-25AH1 RM-25AH1 RM-25AH1 RM-25AH1 RM-25AH1
10 PISTON ASSEMBLY,
Ind.Ref.#9&11		 3 RM-202TBL045A RM-201TBL045A RM-245TBB045A RM-243TBB045A RM-241TBB045A RM-
239TBB045A		 RM-231TBK045A
11 INSERT GROUP,Incl.
Retainer Plates &Rings		 3 RM-TBL77586 RM-TBL77585 RM-TBB76028 RM-TBB76026 RM-TBB76024 RM-TBB76022 RM-TBK90428