SYMBOLS FOR VALVES & COCKS

VALVES SYMBOLS

SDSL VALVE

SDNR VALVE

NR VALVE

SWING CHECK VALVE

BUTTERFLY VALVE

GATE VALVE

STRUM BOX

MUD BOX

Y-TYPE STRAINER

PIPE CLASSIFICATION

LOW PRESSURE PIPE

MEDIUM PRESSURE PIPE

HIGH PRESSURE PIPE

PIPE TYPES

ERW (ELECTRIC RESISTANCE WELDED) PIPES

MS PIPES

LOW PRESSURE PIPES

SEAMLESS PIPES

MS PIPES

COPPER NICKEL (CuNi) PIPES

COPPER (Cu) PIPES

STAINLESS STEEL PIPES

PIPING COLOUR CODESYSTEM BELT /

BAND

PIPE COLOUR

MARKING

FRESH WATER COOLING SYSTEM

BLUE WHITE

FUEL OIL (DIESEL) BROWN WHITE

LUB OIL YELLOW WHITE

FIRE MAIN & DECKWASH SIGNAL RED

SEA WATER COOLING SYSTEM

GREEN WHITE

FEED WATER ORANGE WHITE

STP SYSTEM BLACK WHITE

PENETRATION PIECES

FLANGE PENETRATION

Applied on watertight bulkhead / deck

SLEEVE PENETRATION

Applied on watertight bulkhead / deck / platform

Sleeve provided with two holes

PIPE TESTING

AIR PRESSURE TESTING

WATER PRESSURE TESTING

HYDRAULIC PRESSURE TESTING

WATER PRESSURE TESTING

TEST PRESSURE = 1.5 * WORKING PRESSURE

OBSERVATION FOR LEAKAGES

WATER PRESSURE TESTING

WATER

TANK

RELIEF V/V

COMPRESSOR

PRESSURE GAUGE

PRESURE COCK

RESERVOIR

RELEASE V/V ISOLATION V/V

PIPE

FRESH WATER GENERATOR

Operating ParametersSEA WATER

Sea water intake = 3000 ltrs/hr

Salt concentration = 36000 ppm

pH range = 7.5 - 7.9

Required pre pressure = 0.5 - 3 bars

Operating Parameters

PURE WATER

Pure water output = 20000 ltrs/day

Salt concentration = 500-750 ppm

pH range = 7.0 - 7.2

Recovery rate = 30 %

FRESH WATER GENERATOR RO PLANT

VACCUM TOILET SYSTEM

MAIN PURPOSE : Receive, treat & discharge sewage

PIPES : MS Galvanized

SEWAGE TRANSPORT BY : (Vaccum) Air

SYSTEM WORKING PRESSURE : 4 Bar

SEWAGE TREATMENT PLANT

RAW

SEWAGE

DISCHARGE V/VBLEACH TANK CHEMICAL FEED PUMP

SEDIMENTATION

TANKS

BACK

WASH

GATE

V/V

FLOW CONTROL V/V

FLOW PUMP

MACERATOR

PUMP

VENT

PRESSURE

SWITCH

SOLENOID

V/V

SURAJ S. POWAR