Description
Overview:
The Rubber Washer 3" for Hose Couplings is a flat sealing washer used to maintain a tight, leak‐resistant joint between hose fittings and couplings. Made from durable rubber, it withstands repeated compression and everyday wear in site, agricultural, and general plumbing use. Sized for 3" (76.2 mm) nominal hose systems, it has an 88 mm outer diameter and a 70 mm inner diameter to suit common 3" coupling seats. It helps prevent liquid loss on suction and discharge lines, protects mating faces from damage, and supports consistent flow. This washer is suitable for water transfer, irrigation, drainage, and maintenance tasks on pumps, hose tails, and pipe unions. Manufacturer Part Number: 829 300. Always verify OD and ID to match your coupling recess before fitting.
Key Features:
- Sized for 3" (76.2 mm) nominal hose systems; 88 mm OD and 70 mm ID for accurate seating
- Forms a reliable seal to minimise leaks and pressure loss in hose couplings
- Robust rubber construction for durability and resistance to compression set
- Flat, smooth faces provide even load distribution across coupling faces
- Simple, drop‐in replacement for worn washers; no special tools typically required
- Helps protect coupling faces by preventing metal‐to‐metal contact
- Suitable for both suction and discharge service in water handling setups
- Versatile use across site pumps, hose tails, and pipe unions
- Black rubber for good visibility during inspection and fitting
- Identified by MPN 829 300 for easy reordering and stock control
Typical Applications:
Creating a seal between mating faces on 3" hose couplings used with site dewatering pumps, transfer pumps, layflat hose joints, irrigation lines, tank fill/decant points, and general plumbing manifolds. Common in construction, landscaping, agriculture, facilities maintenance, and light industrial water handling where dependable coupling seals are required.
Also known as:
Coupling gasket, flat seal washer, joint washer, seal ring, hose coupling washer, pipe union washer, flat gasket for hose fittings. These terms are often used interchangeably for flat rubber seals that sit between coupling faces to prevent leakage.
Product Specifications
| L&S Part No. | 829 300 |
|---|---|
| Unit of Sale | 1 |
| Key Features | - Sized for 3" nominal hose systems; 88 mm OD, 70 mm ID - Durable rubber construction resists compression and wear - Forms a reliable seal to minimise leaks in couplings - Suitable for suction and discharge in water handling - Simple drop-in replacement; no special tools needed |
