Moog D633-A Series, User Manual

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15 Appendix Abbreviations, symbols and identification letters
© Moog GmbH User Manual "D633-A Series" (CA80942-001; Version 1.0, 12/08) 75
15 Appendix
15.1 Abbreviations, symbols and identification letters
Abb. Explanation
β
x
Symbol for filter fineness
∆
p Symbol for pressure difference
∆
p
N
Symbol for rated pressure difference
ν
Symbol for viscosity
A Valve port (control port)
A Pin of 4-pin MIL valve connector X1
B Valve port (control port)
B Pin of 4-pin MIL valve connector X1
C Pin of 4-pin MIL valve connector X1
D Fail-safe function D of valve
D Pin of 4-pin MIL valve connector X1
DDV D irect D rive V alve
DIN D eutsches I nstitut für N ormung e. V. (German institute for standardization;
http://www.din.de)
EMC E lectro m agnetic C ompatibility
EN E uropa- N orm (European standard)
EPDM E thylene p ropylene d iene M -class rubber
(material for seals, such as e.g., O-rings)
EU E uropean U nion
F Fail-safe function F of valve
F
1
…F
4
Bore for installation screws or attachment screws of the shipping plate in the
mounting pattern of the valve mounting surface
FKM Fluorocarbon rubber (material for seals, such as e.g., O-rings)
G Bore for positioning pin in the mounting pattern of the valve mounting surface
HNBR H ydrogenated n itrile b utadiene r ubber
(material for seals, such as e.g., O-rings)
I
in
Symbol for input current
ID I nner d iameter (e.g., on O-rings)
IEC I nternational E lectrotechnical C ommission (http://www.iec.ch)
IP I nternational p rotection
(IP code; degree of protection type by enclosure as per DIN EN 60529 )
ISO I nternational O rganization for S tandardization (http://www.iso.org)
M Fail-safe function M of valve
MIL Mil itary (e.g., in MIL-STD; military standards, which are created by the U.S. De-
partment of Defense) (http://www.iso.org)
n Number
NG N enn g röße (nominal size), e.g., 6
P Valve port (pressure port)
P
max
Symbol for power consumption at maximum flow
p Symbol for pressure
p
N
Symbol for rated pressure
p
P
Symbol for operating pressure
PELV P rotective e xtra- l ow v oltage
Table 22: Abbreviations, symbols and identification letters (part 1 of 2)
Table 22: Abbreviations,
symbols and identification
letters