TY-HT400 Fluid end
100% interchangeable with SJS/HALLIBURTON HT400 fluid end.
TY-HT400 fluid end is 100% compatible with original HT400 pumps. It is horizontal, triplex, and three separate fluid end sections. It is made with three-piece high quality forged steel.
All the parts dressed inside are designed for high performance and long life in handling your cementing and pumping jobs.
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Fluid-End Type：Horizontal, triplex, three-piece forged steel
Plunger Type：Single-acting, hard-surfaced
Valve Type：Double-guided, carburized, high-contact
Valve Seats：Carburized and replaceable
Pressure Packing：CDI High-performance packing
Discharge Flange： Blank, straight TY with one outlet or with two outlets
Oil System: External; use air tank press
| Plunger Size in. (mm) | Maximum Working Pressure |
| 3 3/8”(85.7) | 20,000Psi / 138Mpa |
| 4” (101.6) | 15,000Psi / 103.4Mpa |
| 4 1/2”(114.3) | 11,200Psi/ 78Mpa |
| 5″ (127.00） | 9,000Psi/ 65Mpa |
TianyuMfg manufactures not only fluid end blocks for HT400 triplex pumps but also full-dressed HT400 fluid ends with all spare parts.
TianyuMfg fabricates HT400 spare parts, 100% compatible with original HT-made pumps.
Here list the most demanded fluid end parts of HT400, 4in plunger size:
| Part Description | QTY | 4 In | |
| DISCHARGE VALVE SUBASSEMBLY | |||
| 1 | RETAINER, COVER | 3 | 316.2202.KOP |
| 2 | COVER, DOUBLE GUIDE VALVE | 3 | 316.23091.KOP |
| 3 | GASKET, VALVE COVER | 3 | 316.22052.KOP |
| 4 | RING,SPACER, VALVE COVER | 3 | 316.22051.KOP |
| 5 | INSERT, 2 PC BUSHING, VALVE GUIDE | 6 | 316.22004.KOP |
| 6 | LINER, 2 PC BUSHING, VALVE GUIDE | 6 | 316.22005.KOP |
| 7 | SPRING, VALVE | 3 | 316.2108.KOP |
| 8 | VALVE, FRAC | 3 | 316.21007.KOP |
| 9 | INSERT, VALVE, STD, URETHANE | 3 | 316.21006.KOP |
| 9 | INSERT, VALVE, ACID, URETHANE | 3 | 316.21048.KOP |
| 10 | SEAT VALVE, TAPERED | 3 | 316.21008.KOP |
| 11 | O-RING | 3 | 8.34037.KOP |
| 12 | RETAINER, GUIDE BUSHING | 3 | 316.21096.KOP |
| SUCTION VALVE SUBASSEMBLY | |||
| 1 | SPRING, LOCK, SUCTION STOP | 3 | 316.2125.KOP |
| 2 | BOOT, SUCTION AND STOP | 6 | 316.25233.KOP |
| 3 | RETAINER, STOP AND SPRING | 3 | 316.22977.KOP |
| 4 | INSERT, 2 PC BUSHING, VALVE GUIDE | 6 | 316.22004.KOP |
| 5 | LINER, 2 PC BUSHING, VALVE GUIDE | 6 | 316.22005.KOP |
| 6 | SPRING, VALVE | 3 | 316.2108.KOP |
| 7 | VALVE, FRAC | 3 | 316.21007.KOP |
| 8 | INSERT, VALVE, STD, URETHANE | 3 | 316.21006.KOP |
| 8 | INSERT, VALVE, ACID, URETHANE | 3 | 316.21048.KOP |
| 9 | SEAT VALVE, TAPERED | 3 | 316.21008.KOP |
| 10 | O-RING | 3 | 8.34037.KOP |
| 11 | RETAINER, GUIDE BUSHING | 3 | 316.21096.KOP |
| FLUID END ASSEMBLY | |||
| 1 | FLANGE, DISCHARGE, BLANK | 1 | 316.22980.KOP |
| 1a | FLANGE, DISCH, RH | 1 | 316.23019.KOP |
| 1b | FLANGE, DISCH, LH | 1 | 316.23017.KOP |
| 1c | FLANGE, STRAIGHT | 1 | 316.27482.KOP |
| 2 | SEAL, DISCHARGE PASSAGE | 6 | 316.2547.KOP |
| 3 | NUT, 1-14 NF, INTERNAL WRENCHING | 4 | 316.11621.KOP |
| 4 | STUD,FLUID END TO DISCH. FLANGE * | 4 | — |
| 5 | BOLT, TOP, TIE | 1 | 316.27488.KOP |
| 6 | NUT, TOP TIE BOLT | 2 | 316.25501.KOP |
| 7 | WASHER, HARDENED | 2 | 315.11183.KOP |
| 8 | SPACER, INN, DISCH PASS SEAL | 2 | 316.2545.KOP |
| 9 | FLUID END SECTION | 3 | 316.22982.KOP |
| 10 | NUT, ELASTIC * | 2 | — |
| 11 | BOLT, BOTTOM, TIE * | 1 | — |
| ** | BOLT, TIE, FLUID END, TOP | 2 | 316.27489.KOP |
| ** | STUD, FLUID END TO POWER END | 12 | 316.24923.KOP |
| PLUNGER/CYLINDER HEAD COVER SUBASSEMBLY | |||
| 1 | RETAINER, COVER | 3 | 316.2102.KOP |
| 2 | COVER, CYLINDER HEAD | 3 | 316.2107.KOP |
| 3 | GASKET, COVER | 3 | 316.21052.KOP |
| 4 | RING, SPACER, COVER | 3 | 316.21051.KOP |
| 5 | NOSE, PLUNGER | 3 | 316.2231.KOP |
| 6 | SEAL, PLUNGER NOSE ASSEMBLY | 3 | 316.2230.KOP |
| 7 | PLUNGER, HARD SURFACE | 3 | 316.22294.KOP |
| 8 | TIE ROD, PLUNGER | 3 | 316.21028.KOP |
| 9 | ADAPTER, PUSHROD | 3 | 316.22302.KOP |
| PACKING NUT AND PACKING SUBASSEMBLY | |||
| 1 | PIN, GROOVE | 3 | 70.35817.KOP |
| 2 | SLEEVE, WIPER GLAND | 3 | 316.2238.KOP |
| 3 | NUT, PACKING ADJUSTMENT | 3 | 316.22987.KOP |
| 4 | CARRIER, SEAL & PACKING | 3 | 316.22396.KOP |
| 5 | O-RING, 90D | 3 | 8.34045.KOP |
| 6 | RING, BACKUP, PACKING | 3 | 316.22393.KOP |
| 7 | PACKING SET, STD SRV, 3 RINGS | 1 | 316.22532.KOP |
| 7 | PACKING SET, ACID SRV, 3 RINGS | 1 | 316.22525.KOP |
| 8 | RING, HEADER | 3 | 316.22501.KOP |
| 9 | ADAPTER, HEADER RING | 3 | 316.22503.KOP |
| 10 | SEAL, LUBE, PACKING | 3 | 316.22395.KOP |
TianyuMfg manufactures and supplies spare parts 100% interchangeable with original/OEM 4 1/2″ plunger size spare parts as below:
| Part Description | QTY | PLUNGER SIZE | PART NUMBER | ||
| DISCHARGE VALVE SUBASSEMBLY | |||||
| 1 | RETAINER, COVER | 3 | 4 1/2 | 316.2202.KOP | |
| 2 | COVER,DOUBLE GUIDE VALVE | 3 | 4 1/2 | 316.23091.KOP | |
| 3 | GASKET, VALVE COVER | 3 | 4 1/2 | 316.22052.KOP | |
| 4 | RING,SPACER, VALVE COVER | 3 | 4 1/2 | 316.22051.KOP | |
| 5 | INSERT, 2 PC BUSHING, VALVE GUIDE | 6 | 4 1/2 | 316.22004.KOP | |
| 6 | LINER, 2 PC BUSHING, VALVE GUIDE | 6 | 4 1/2 | 316.22005.KOP | |
| 7 | SPRING, VALVE | 3 | 4 1/2 | 316.2308.KOP | |
| 8 | VALVE, FRAC | 3 | 4 1/2 | 316.22048.KOP | |
| 9 | INSERT, VALVE, STD, URETHANE | 3 | 4 1/2 | 316.22049.KOP | |
| 9 | INSERT, VALVE, ACID, URETHANE | 3 | 4 1/2 | 316.22046.KOP | |
| 10 | SEAT VALVE, TAPERED | 3 | 4 1/2 | 316.22047.KOP | |
| 11 | O-RING | 3 | 4 1/2 | 8.34041.KOP | |
| 12 | RETAINER, GUIDE BUSHING | 3 | 4 1/2 | 316.23953.KOP | |
| SUCTION VALE SUBASSEMBLY | |||||
| 1 | SPRING, LOCK, SUCTION STOP | 3 | 4 1/2 | 316.22252.KOP | |
| 2 | BOOT, SUCTION AND STOP | 6 | 4 1/2 | 316.25233.KOP | |
| 3 | RETAINER, STOP AND SPRING | 3 | 4 1/2 | 316.23034.KOP | |
| 4 | INSERT, 2 PC BUSHING, VALVE GUIDE | 6 | 4 1/2 | 316.22004.KOP | |
| 5 | LINER, 2 PC BUSHING, VALVE GUIDE | 6 | 4 1/2 | 316.22005.KOP | |
| 6 | SPRING, VALVE | 3 | 4 1/2 | 316.2308.KOP | |
| 7 | VALVE, FRAC | 3 | 4 1/2 | 316.22048.KOP | |
| 8 | INSERT, VALVE, STD, URETHANE | 3 | 4 1/2 | 316.22049.KOP | |
| 8 | INSERT, VALVE, ACID, URETHANE | 3 | 4 1/2 | 316.22046.KOP | |
| 9 | SEAT VALVE, TAPERED | 3 | 4 1/2 | 316.22047.KOP | |
| 10 | O-RING | 3 | 4 1/2 | 8.34041.KOP | |
| 12 | RETAINER, GUIDE BUSHING | 3 | 4 1/2 | 316.23953.KOP | |
| FLUID END ASSEMBLY | |||||
| 1 | FLANGE, DISCHARGE, BLANK | 1 | 4 1/2 | 316.22980.KOP | |
| 1a | FLANGE, DISCH, RH | 1 | 4 1/2 | 316.23019.KOP | |
| 1b | FLANGE, DISCH, LH | 1 | 4 1/2 | 316.23017.KOP | |
| 1c | FLANGE, STRAIGHT | 1 | 4 1/2 | 316.27482.KOP | |
| 2 | SEAL, DISCHARGE PASSAGE | 6 | 4 1/2 | 316.2547.KOP | |
| 3 | NUT, 1-14 NF, INTERNAL WRENCHING | 4 | 4 1/2 | 316.11621.KOP | |
| 4 | STUD,FLUID END TO DISCH. FLANGE * | 4 | 4 1/2 | 316.23013.KOP | |
| 5 | BOLT, TOP, TIE | 1 | 4 1/2 | 316.27488.KOP | |
| 6 | NUT, TOP TIE BOLT | 2 | 4 1/2 | 316.25501.KOP | |
| 7 | WASHER, HARDENED | 2 | 4 1/2 | — | |
| 8 | SPACER, INN, DISCH PASS SEAL | 2 | 4 1/2 | 316.2545.KOP | |
| 9 | FLUID END SECTION | 3 | 4 1/2 | 316.23951.KOP | |
| 10 | NUT, ELASTIC * | 2 | 4 1/2 | 70.32760.KOP | |
| 11 | BOLT, BOTTOM, TIE * | 1 | 4 1/2 | 316.23011.KOP | |
| – | BOLT, TIE, FLUID END, TOP | 2 | 4 1/2 | — | |
| — | STUD, FLUID END TO POWER END | 12 | 4 1/2 | 316.24923.KOP | |
| PLUNGER/CYLINDER HEAD COVER SUBASSEMBLY | |||||
| 1 | RETAINER, COVER | 3 | 4 1/2 | 316.2202.KOP | |
| 2 | COVER,CYLINDER HEAD | 3 | 4 1/2 | 316.2207.KOP | |
| 3 | GASKET, COVER | 3 | 4 1/2 | 316.22052.KOP | |
| 4 | RING, SPACER, COVER | 3 | 4 1/2 | 316.22051.KOP | |
| 5 | NOSE, PLUNGER | 3 | 4 1/2 | 316.2331.KOP | |
| 6 | SEAL, PLUNGER NOSE ASSEMBLY | 3 | 4 1/2 | 316.2330.KOP | |
| 7 | PLUNGER, HARD SURFACE | 3 | 4 1/2 | 316.23085.KOP | |
| 8 | TIE ROD, PLUNGER | 3 | 4 1/2 | 316.21028.KOP | |
| 9 | ADAPTER, PUSHROD | 3 | 4 1/2 | 316.23089.KOP | |
| PACKING NUT AND PACKING SUBASSEMBLY | |||||
| 1 | PIN, GROOVE | 3 | 4 1/2 | 70.35817.KOP | |
| 2 | SLEEVE, WIPER GLAND | 3 | 4 1/2 | 316.2238.KOP | |
| 3 | NUT, PACKING ADJUSTMENT | 3 | 4 1/2 | 316.2337.KOP | |
| 4 | CARRIER, SEAL & PACKING | 3 | 4 1/2 | 316.23391.KOP | |
| 5 | O-RING, 90D | 3 | 4 1/2 | 8.34049.KOP | |
| 6 | RING, BACKUP, PACKING | 3 | 4 1/2 | 316.23393.KOP | |
| 7 | PACKING SET, STD SRV, 3 RINGS | 1 | 4 1/2 | 316.23532.KOP | |
| 7 | PACKING SET, ACID SRV, 3 RINGS | 1 | 4 1/2 | 316.23525.KOP | |
| 8 | RING, HEADER | 3 | 4 1/2 | 316.23501.KOP | |
| 9 | ADAPTER, HEADER RING | 3 | 4 1/2 | 316.23503.KOP | |
| 10 | SEAL, LUBE, PACKING | 3 | 4 1/2 | 316.23395.KOP | |
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