In brief: Praher N328 O-ring seal, internal seal for 1½" 2-way ball valve. Replacement part, valve not included.
A leaking valve doesn't always need replacing
When a ball valve drips, the natural reaction is to replace the whole thing. In most cases, it is the internal O-ring that has hardened and is no longer sealing, and it costs only a few dollars.
It is worth trying the seal before buying a new valve and redoing the surrounding plumbing.
Specifications
| Part number |
N328 |
| Manufacturer |
Praher |
Type |
O-ring, internal position |
| For |
1½" 2-way ball valve |
Frequently asked questions
Internal or external?
The N328 is the valve's internal seal. For the outer threaded part of a union, use the E225 seal.
Should it be lubricated?
Yes, a silicone-based lubricant like Jack's Lube significantly extends its lifespan. Avoid petroleum jelly, which damages rubber.
See also
