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PK Lindsay 7-03C Large Mixing Valve Cover – Models 300LA & 600LA
PK Lindsay 7-03C Large Mixing Valve Cover – Models 300LA & 600LA
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PK Lindsay 7-03C Large Mixing Valve Cover – Diagram #13 – Models 300LA & 600LA
Keep your older PK Lindsay abrasive blasting equipment in service with the 7-03C Large Mixing Valve Cover. This cover is a major component of the large mixing valve assembly used on PK Lindsay Models 300LA and 600LA.
The 7-03C is identified as Item #13 in the exploded parts diagram, making it easy to verify the correct component before ordering.
Part Information:
- Part Number: 7-03C
- Product: Large Mixing Valve Cover
- Diagram Item: #13
- Application: PK Lindsay Large Mixing Valve
- Equipment Type: Abrasive Blasting Equipment
Fits PK Lindsay Models:
- Model 300LA
- Model 600LA
Includes:
Exploded Diagram Item #13
Refer to the exploded parts diagram below to identify the component included with this listing.

Applications:
- PK Lindsay abrasive blast pots
- Pressure sandblasting equipment
- Large mixing valve assemblies
- Commercial abrasive blasting systems
- Industrial surface preparation equipment
Features:
- PK Lindsay 7-03C large mixing valve cover
- Identified as #13 in the exploded parts diagram
- Fits Models 300LA & 600LA
- Major component of the large mixing valve assembly
- Provides access to the internal valve components for servicing
- Ideal for repairing or rebuilding an existing large mixing valve
- Replaces a cracked, damaged, corroded, or excessively worn cover
- Helps keep older PK Lindsay blasting equipment in service
What It Does:
The 7-03C Large Mixing Valve Cover encloses and supports the internal components of the PK Lindsay large mixing valve assembly. Together with the valve body and cover gasket, it forms the housing for the components responsible for controlling abrasive flow.
Years of service in an abrasive blasting environment can cause corrosion, thread damage, physical wear, or other deterioration to the cover. Damage can also occur during repeated disassembly and servicing of older equipment.
When the existing cover is no longer serviceable but the rest of the valve can still be rebuilt, replacing the 7-03C cover can be considerably more economical than replacing the complete mixing valve.
Common Reasons for Replacement:
- Cover is cracked or physically damaged
- Excessive corrosion or deterioration
- Mounting or threaded areas are damaged
- Cover sealing surface is worn or damaged
- Existing cover has been damaged during disassembly
- Rebuilding an incomplete large mixing valve
- Restoring an older PK Lindsay 300LA or 600LA blast machine
Related Cover Gasket
When removing or replacing the mixing valve cover, inspect the PK Lindsay 7-16CG Large Mixing Valve Cover Gasket – Diagram Item #12.
A worn, compressed, torn, or deteriorated gasket should be replaced to help ensure a proper seal when the valve is reassembled.
Part of the 7-03CE Rebuild Kit
The 7-03C Large Mixing Valve Cover – Diagram Item #13 is also included as part of the PK Lindsay 7-03CE Large Mixing Valve Rebuild Kit, along with the 7-36A Large Mixing Valve Rebuild Kit.
If your valve needs extensive internal rebuilding in addition to a new cover, the complete 7-03CE kit may be the more economical option.
Finding Parts for Older PK Lindsay Equipment
PK Lindsay blast machines may no longer be manufactured, but many 300LA and 600LA machines remain in service. Major and individual mixing valve components can be difficult to identify and locate when you're working from an older exploded parts diagram.
That's why we include the original PK Lindsay part number and exploded diagram item number whenever possible—so you can identify exactly what you need before ordering.
Important:
This listing is for the PK Lindsay 7-03C Large Mixing Valve Cover – Diagram Item #13 only.
The cover gasket, internal valve components, hardware, and other items shown in the exploded parts diagram are sold separately unless specifically stated otherwise.
Need another part shown in the diagram? Reach out with the PK Lindsay part number or diagram item number—we'll help you find the right part to keep your machine working.
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