- The Keystone Figure 86 is a high capacity, spring loaded wafer style swing check valve designed to prevent back flow in a variety of applications including pump and multi-pump systems.
FEATURES
SPECIFICATIONS
DRAWINGS & DOCUMENTS
- Lightweight, wafer type check valve with face-to-face dimensions according ISO 5752, table 5 long
- High flow capacity featuring a special shaped disc with a large opening angle resulting in high Kv values
- Spring loaded disc for positive shut-off
- Choice of cast iron or stainless steel body types
- Field replaceable O-ring seat
- Internal travel stop prevents the disc from slamming against the pipe
- Excellent low pressure shut-off
The standard low pressure shut-off is less than 0.1 bar (10 kPa) - Slam free operation
- Optional heavy spring for slam free operation in systems with high decelerations
- Optional light spring for systems with low line velocities
- Optional adjustable travelstop for system with reduced inner diameter pipe
| Sizes (DN) | 40-300 |
| Temperature (°C) | -40 to +190 |
| Pressure (bar/kPa) | 16/1600 |
| Flange acc. | PN 6/10/16/25 ASME 150/300 AS 2129 C, D & E (multi) JIS 5/10/16/20/30 |