Internal valve spring – Hahn & Sohn HDE20SS3-DW
Internal valve spring – Hahn & Sohn HDE20SS3-DW
Inner valve spring for the WEICHAI WP2.3D25E200 engine used in the Hahn & Sohn HDE20SS3-DW diesel generator. Part of the dual valve spring assembly — works together with the outer spring
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Inner valve spring for theWEICHAI WP2.3D25E200 engine used in theHahn & Sohn HDE20SS3-DW diesel generator. Part of the dual valve spring assembly — works together with the outer spring.
This engine usesdual valve springs(outer and inner), which is a common design solution in higher-performance engines — the combination of two concentric springs with different stiffness and diameters ensures more stable valve operation at high engine speeds and a more even distribution offorcethanandsinglelargespring.Theinnerspringhasandsmallerdiameterandispositionedconcentricallyinsidetheouterspring.
- The part is designed for the four-cylinderdieselengineWEICHAIWP2.3D25E200(Hahn&SohnHDE20SS3-DWgenerator,20kW/25kVA).
WHY CUSTOMERS CHOOSE IT
- Exact match for the WEICHAI WP2.3D25E200 engine
- Essential part for a completevalve trainoverhaul
PRACTICALTIP
Always replace the inner and outer spring together as a pair at the given position, even if one of them appears visually undamaged — they are designed to work together with the specific combination ofstiffnessofbothspringssimultaneously.
KEYFEATURES
- Type: inner valve spring (part of a dual spring assembly)
- Material: steel (spring steel)
- Designedforengine:WEICHAIWP2.3D25E200
- Compatiblegenerator:Hahn&SohnHDE20SS3-DW(20kW/25kVA)
USE / INSTALLATION / OPERATION
- Remove the cylinder head and valve train according to the service procedure.
- Using a suitable spring compressor, compress the springs, release the retaining clip, and remove the retainer, outer spring, and inner spring.
- Before installing the new spring, visually check that it is not deformed, cracked, or corroded.
- Install the inner spring, then position the outer spring concentrically around it, fit the retainer, and secure it with theretainingclip.
Installationrequiresandvalvespringcompressorandexperiencewithvalvetrainservicing.
Additional parameters
Technical parameters
| Category | Other |
| Weight | 0.02 kg |
| Part type | Internal valve spring |
| Material | Steel (spring steel) |
| Designed for the engine | WEICHAI WP2.3D25E200 |
| Compatible machine | Hahn & Sohn HDE20SS3-DW (20 kW / 25 kVA) |