Content
- Low temperatures
- Magnetic fields
- Intrinsic safety
- Aggressive fluids
- Contaminated water?
- Corrosive environment
- Documentation
Low temperatures
Valves specified with the low temperature option are suitable for operation in ambient temperatures as low as -50°C.
Valves for environments containing strong magnetic fields
The 298-398 valve's can be reliably controlled in any environment . The signaling box, with mechanical or inductive contacts, is rotatable through 360° and is designed to be protected against the effects of magnetic fields.
Operation is simple and effective. Cams on the signaling box plunger operate contacts at both end-of-travel positions (open and closed) of the valve stem, providing an electrical signal indicating that the end position is reached.
Valve position control within explosive atmospheres
The signaling box can be used in explosive atmospheres. It fits all Series 298 (2/2) and 398 (3/2) ATEX approved valves.
- Version with 2 intrinsically safe inductive NAMUR contacts is designed for use in potentially explosive atmospheres with protection mode II 2 GD c IIB T6 T85°C, to ATEX-Directive 94/9/EC
- Complies with the Essential Health and Safety Requirements and European Standards EN 50020, EN 50281-1-1 and EN 50284
- The signaling box is supplied pre-set and mounted on the valve. It is rotatable through 360°
Aggressive fluids
When equipped with the PTFE disc seal, process valves can withstand the most aggressive fluids (petroleum oils, gasoline, dry-cleaning fluids, jet fuels...) without reducing the service life.
Contaminated water
The metal disc is suitable for high temperatures, contaminated water and variable temperature cycles.
This technology avoids the build-up of particles present in the fluids and preserves the intergrity of the valve.
Corrosive environment
Valves are designed to withstand harsh operating conditions and marine paint applied to the valve, will help avoid corrosion and provide a better service life.
It acts as a valve protector and allows operation while providing resistance to seawater.
Documentation
298 valves (2/2)
- Valves series 298 with threaded ports PN40, 1/2 to 2
- Valves series 298 with flanges PN40, DIN and ANSI Class 300, DN 15 to 50
- Valves series 298 with socket welding ends PN40, DN 15 to 50
398 valves (3/2)
- Valves series 398 with threaded ports PN40, 1/2 to 2
- Valves series 398 with flanges PN40, DIN and ANSI Class 300, DN 15 to 50
- Valves series 398 with socket welding ends PN40, DN 15 to 50
Options and accessories