top of page
product page - LESER type 447 pressure relief valves

CRITICAL SERVICE

TYPE 447

LESER type 447 pressure relief valves

Industries

Approvals

Type 447 LESER Critical Service pressure relief valves are designed, marked, produced and approved according to the requirements of the following regulations:

ce-mark logo

UV

asme-uv logo
EAC logo

Technical Specifications for Type 447

Nominal Diameter at Inlet

DN 25 - DN 100 | 1" - 4"

Actual Orifice Diameter dâ‚€

23 - 92 mm | 0.91 - 3.62 in

Actual Orifice Area Aâ‚€

416 - 6648 mm² | 0.645 - 10.304 in²

Pressure

0.1 - 16 bar | 1.45 - 232 psig

Flange Rating Inlet

PN 16 | CL150

Temperature (in accordance with DIN EN)

-85 to 200 °C | -121 to 392 °F

Temperature (nach ASME)

-29 to 200 °C | -200 to 392 °F

Body Material

1.0406, 10619, 1.0570 + Virgin PTFE | SA 216 WCB

Valve Connection

Flange acc. to DIN EN 1092-1 or acc. to ASME B 16.5

Bellows Material (optional)

PTFE

Load Type

Spring loaded

Approvals

PED/ DIN EN ISO 4126-1, PED/ AD 2000-Merkblatt A2, ASME Section XIII certified for Section VIII Div. 1 service, CRN, AQSIQ, EAC

downloads.png

Downloads

Access all the necessary documents and detailed information for pressure relief valves in our download area.

LESER criticalo service product catalogue
contact LESER UK

CONTACT LESER UK

For ALL LESER Safety Valve enquiries In the United Kingdom - Contact LESER UK​

There are many ways to get in touch:

Use our Online Enquiry From

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.

​

Call Us

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!​

​

bottom of page