Symbols For Piping - Man L23/30DF Project Manual

MAN Diesel & Turbo
1655279-1.1
Page 1 (10)
General
No Symbol
1. GENERAL CONVENTIONAL SYMBOLS
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
2. PIPES AND PIPE JOINTS
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10
2.11
2.12
2015.11.17

Symbols for piping

L27/38S, L16/24, L16/24S, L21/31, L21/31S, L23/30H, L23/30S, L23/30DF,
L28/32H, L28/32S, V28/32H, V28/32S, L27/38, L28/32DF
Symbol designation
Pipe
Pipe with indication of direction flow
Valves, gate valves, cocks and flaps
Appliances
Indicating and measuring instru-
ments
High-pressure pipe
Tracing
Enclosure for several components
as-sembled in one unit
Crossing pipes, not connected
Crossing pipes, connected
Tee pipe
Flexible pipe
Expansion pipe (corrugated) general
Joint, screwed
Joint, flanged
Joint, sleeve
Joint, quick-releasing
Expansion joint with gland
Expansion pipe
Cap nut
No Symbol Symbol designation
2.13 Blank flange
2.14 Spectacle flange
2.15 Orifice
2.16 Orifice
2.17 Loop expansion joint
2.18 Snap coupling
2.19 Pneumatic flow or exhaust to
atmosphere
3. VALVES, GATE VALVES, COCKS AND FLAPS
3.1 Valve, straight through
3.2 Valve, angle
3.3 Valve, three-way
3.4 Non-return valve (flap), straight
3.5 Non-return valve (flap), angle
3.6 Non-return
screw down
3.7 Non-return valve (flap), angle, screw
down
3.8 Safety valve
3.9 Angle safety valve
3.10 Self-closing valve
3.11 Quick-opening valve
3.12 Quick-closing valve
3.13 Regulating valve
3.14 Ball valve (cock)
I 00 25 0
valve (flap), straight