DESCRIPTION
NAFFCO under ground fire hydrants are valves of screw down type and are suitable for a maximum working pressure of 16 bar.
The underground fire hydrants are manufactured to comply to BS 750:2012 and EN 14339:2005 standards with screwed outlet threaded to BS 336:2010 standard.
SPECIFICATION
| Model | NHYD058 | |
|---|---|---|
| Valve Type | Screw down (type 2C) | |
| Nominal Size & Flange Drilling | Flange-X Flange-Y Flange-Z | PN16, DN80, BS EN 1092-2 PN16, DN80, BS EN 1092-2 PN16, DN80, BS EN 1092-3 |
| Working Pressure | 16 Bar maximum | |
| Test Pressure (Body) | Body | 25 Bar |
| Seat | 20 Bar | |
| Flange Drilling | BS 4504 Part : 2 : 1974 Table : 16/21 | |
FEATURES
- BSI Kitemark certified
- Body material made of grey cast iron to BS 1503-3
- Material of spindle and threaded part of valves which engages with it is made of stainless steel to BS 10088-1
- Material for the screwed outlet is made of high tensile brass to BS 12163:2011
- Spindle sealings (two seals) is of the toroidal sealing ring (‘0’ ring) type and are capable of changing while the valve is under pressure and fully closed
- A wiper ring is positioned above the spindle sealing’s to prevent the ingress of foreign matter
- Each hydrant shot is blasted (inside and outside) to SA 2 1/2 std
- All cast iron parts are thoroughly cleaned and painted