Valve Box
Valve Box
- Catalogue reference number
- MD550
- Catalogue brand
- Not recorded
Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.

Original designation: 阀箱
Catalogue description records
The MD550 Valve Box is an aftermarket replacement component designed for the fluid or power end of reciprocating pumps. It serves as a critical housing for valve assemblies, ensuring proper fluid flow control within the system. This part is configured to match specific pump models as a direct substitute for original equipment.
This component is a replacement part used in the fluid end or power end of reciprocating (piston/plunger) pumps. It is sized and configured to match the listed pump models.
Catalogue question records
Original catalogue questions are retained. Fitment and availability need technical review.
- What is the primary function of the MD550 Valve Box?
- It acts as a housing for valve assemblies in the fluid or power end of reciprocating pumps to manage fluid flow.
- Is the MD550 an original manufacturer part?
- No, it is an aftermarket replacement part designed to match specific pump models.
- What is the part number?
- It is listed under part number MD550.
- Is this an original-equipment part?
- No. It is an aftermarket replacement part.
Check the original reference
Search original filenames and model text here. Check part numbers inside the PDF. No associated model is selected or shortened automatically.
Prepare a review checklist
Entries on this page are not sent or saved automatically. Copy and save them before leaving.
Starts blank. Catalogue or manual quantities are not copied into your request.
Nothing has been sent.
Technical review & contact
Include the nameplate, original part number, manual page and the quantity you need. Check the original request before sending.