7 Technical and physical data
Study the instructions carefully and pay special attention to the warnings!
7.1
Standard
The HLSD-2 pressure cover is designed according to Merkblatter AD 2000 newest edition and designed for installation in
pressure vessels until hazard category IV. The cover is not pressure tested and must be tested as a part of the pressure vessel.
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HLSD-2 is designed for fluid group 1 and 2.
TECHNICAL DATA
Sizes
200 mm, 300 mm, 400 mm, 450 mm, 500 mm and 600 mm.
Pressure
Max. allowable pressure:
According to selection table, see page 13
Min. allowable negative pressure:
Full vacuum
Max. test pressure Ptest:
According to selection table, see page 13
PHYSICAL DATA
Materials
Product wetted steel parts:
1.4404 (AISI 316L)
Other steel parts:
1.1401 (AIAI 304)
Seal:
EPDM, FPM, Silicone, FEP covered silicone, FEP covered FPM, PFA covered silicone
Standard surface finish:
1.6µm, inside Ra 0.8µm
Temperature
Temperature range:
-10°C to +250°C
7.2
Options
A. Spring to assist opening.
B. Arrangement for securing cover in open and closed position.
C. Bracket for indication unit.
D. Handle in stainless steel.
E. Guide for cover for vertical installation. Please define positioning of the hinge (right or left hand side).
F. Sight glass DIN 28120.
G. Sight glass DIN 11851.
H. Safety grid.
I. Special surface finish.
J. Frame height G = 300mm.
K. Seal of Q (silicone), FPM, FEP covered silicone, PFA covered silicone, FEP covered FPM.
L. Conical frame, different frame thickness and frame height available on request.
12
Summary of Contents for HLSD-2
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