COMPACT PERFORMANCE
TYPE 459 HDD
Industries
Chemical >
Pharmaceutical >
Food and Beverage >
Ship Building >
Approvals
Type 459 HDD LESER Compact Performance pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:
UV
Technical Specifications for Type 459 HDD
Nominal Diameter Inlet - Thread
1/2" - 1“ | 1/2" - 1“
Nominal Diameter Inlet - Flange
DN 15 - DN 25 | 1/2" - 1"
Actual Orifice Diameter dâ‚€
6 - 9 mm | 0.236 - 0.354 in
Actual Orifice Area Aâ‚€
28.3 - 63.6 mm² | 0.044 - 0.099 in²
Pressure
250.01 - 850 bar | 3626 - 12328 psig
Flange Rating Inlet
PN 320 - PN 400 | CL1500 - CL2500
Temperature (in accordance with DIN EN)
-273 to 400 °C | -459 to 752 °F
Temperatur (nach ASME)
-196 to 450 °C | -321 to 82 °F
Material Outlet Body
1.4408 | SA 351 CF8M
Material inlet body
1.4404 stellited | SA 479 316L stellited
Valve Connection
Thread acc. to DIN ISO 228-1, ISO 7-1 / BS 21 or ASME B1.20.1, Flange acc. to DIN EN 1092-1 or ASME B16.5
Bellows Material (optional)
Stainless steel (only for d09)
Load Type
Spring loaded
Approvals
PED/ DIN EN ISO 4126-1, AD 2000-Merkblatt A2, ASME Section XIII certified for Section VIII Div. 1 service, CRN, EAC, AQSIQ, SAMR
Classification societies
LR, DNV GL, BV, ABS
Downloads
Access all the necessary documents and detailed information for pressure relief valves in our download area.
CONTACT LESER UK
For ALL LESER Safety Valve enquiries In the United Kingdom - Contact LESER UK​
There are many ways to get in touch:
Complete our online enquiry form to quickly find the most suitable product. Click Here
​
Send us an E-mail
Email your enquiry to sales@leser.co.uk together with any questions. We aim always to respond within the 24 hours.
​
Speak to one of the LESER UK sales engineers today: +44 (0)117 930 6113
​
Chat
Use the chat box and speak to someone now through the website. We'll reply as soon as we can!​
​
LESER Support & Tools
WEB SERVICES
For All LESER Support & Tools, Please Visit -
