Replacement Filter Press Corner Liner Pipes

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A filter press corner liner pipe is a threaded PVC pipe installed into the head plate corner ports of a recessed chamber filter press.

The pipe acts as:

• the filtrate outlet connection 
• the manifold connection point 
• the threaded plumbing adapter 
• the transition between the filter press and external piping 

After liquid passes through the filter cloths and filter plates, the clean filtrate exits through the corner discharge ports and flows into the corner liner pipes before entering the external manifold system.

This allows operators to:

• collect filtrate 
• separate open and closed discharge streams 
• build custom manifold systems 
• direct filtrate to tanks or further treatment

Customers refer to these parts by many different names including:

• corner liner pipe 
• corner pipe 
• threaded corner pipe 
• filter press threaded pipe 
• PVC manifold pipe 
• corner manifold connection 
• filtrate discharge pipe 
• filter press plumbing pipe 
• threaded tubing 
• JWI corner pipe 
• J-Press corner liner 
• head plate threaded liner 
• filter press outlet pipe 

If you are unsure which part your filter press requires, Met-Chem can help identify the correct replacement component.

During filtration:

1. Slurry enters the filter press 
2. Solids are captured by the filter cloths 
3. Clean liquid passes through the cloth 
4. Filtrate enters the internal corner discharge passages 
5. Liquid exits through the threaded corner liner pipes 
6. The external manifold piping directs filtrate away from the press 

The corner liner pipe system is critical because it connects the internal filter plate flow path to the plant piping system.

Without properly functioning corner liner pipes:

• leaks can occur 
• manifold piping cannot seal properly 
• filtrate collection becomes difficult 
• external piping alignment issues develop

Met-Chem stocks multiple filter press corner liner pipe sizes including:

 Size470mm1.5" PVC

630mm1.5" PVC

800mm1.5"  PVC

PVC1000mm 2" 

PVC1200mm 2" PVC 

Custom sizes and threading configurations are also available

PVC is commonly used because it offers:

• chemical resistance 
• corrosion resistance 
• low cost 
• easy replacement 
• compatibility with wastewater treatment systems 

PVC corner liner pipes perform especially well in:

• plating wastewater 
• mining applications 
• chemical processing 
• industrial wastewater treatment 
• sludge dewatering systems

Over time, corner liner pipes can:

• crack 
• wear from vibration 
• develop thread damage 
• leak at the manifold connection 
• become chemically degraded 
• seize inside the head plate 

Replacing worn corner liner pipes can help eliminate external filtrate leaks and improve manifold reliability.

• JWI filter press parts 
• filter press gasketing 
• filter press cloths 
• center feed pipe assemblies 
• filter press troubleshooting 
• new Met-Chem filter presses