PRINCIPLES OF NAVAL ENGINEERING 



PIPE FITTINGS, TYPES OF 

 CONNECTIONS 



SCREWED ENDS 

 FLANGED ENDS 

 BELL-ANDSPICOT ENDS 

 WELDED AND BRAZED ENDS 



SOLDERED ENDS 



ELBOWS 



ELBOW, 90 DEGREES 



ELBOW, 45 DEGREES 



ELBOW, OTHER THAN 90 OR 45 

 DEGREES, SPECIFY ANGLE 



ELBOW, LONG RADIUS 



ELBOW, REDUCING 



ELBOW, SIDE OUTLET, 

 OUTLET DOWN 



ELBOW, SIDE OUTLET, 

 OUTLET UP 



ELBOW, TURNED DOWN 



ELBOW, TURNED UP 



ELBOW, UNION 



TEES 



TEE 



TEE, DOUBLE SWEEP 

 TEE, OUTLET DOWN 



TEE, OUTLET UP 



TEE, SINGLE SWEEP, OR 

 PLAIN T Y 



r 



^30" 



r 



r 



(M— 



-^e^- 

 -KEM- 

 I / ■\ 



T 



OTHER PIPE FITTINGS 



FITTING 

 BUSHING 



CAP 



COUPLING 



PLUG 



REDUCER, CONCENTRIC 



UNION, FLANGED 



UNION, SCREWED 



EXPANSION JOINT. 

 BELLOWS 



EXPANSION JOINT, 

 SLIDING 



T 



-w«- 



-CCOh 



VALVES, TYPES OF CONNECTIONS 



SCREWED ENDS 

 FLANGED ENDS 

 BELLAND-SPICOT ENDS 

 WELDED AND BRAZED ENDS 

 SOLDERED ENDS 



STOP VALVES 



STO 

 VA 



DP COCK, PLUG OR CYLINDER ~©~ 

 LVE, 3 WAY. 3 PORT | 



STOP COCK, PLUG OR CYLINDER 

 VALVE, 4 WAY, 4 PORT 



> 



RELIEF, REGULATING, AND SAFETY 

 VALVES 



GENERAL SYMBOL 



ANGLE, RELIEF 



BACK PRESSURE 



GLOBE, RELIEF 



Y 



GENERAL SYMBOL 



GATE, ANGLE 



GLOBE 



GLOBE, AIR OPERATED, 

 SPRING CLOSING 



r 



Y 



-cJfcO- 



CLOBE, DECK OPERATED _t:Q3_ 



GLOBE, HYDRAULICALLY 

 OPERATED 



STOP COCK, PLUG OR CYLINDER _/T\_ 

 VALVE, 2 WAY ~VL/" 



STOP COCK, PLUG OR CYLINDER I 



VALVE, 3 WAY, 2 PORT — 0~ 



GLOBE, RELIEF ADJUSTABLE, X 



OR SPRING LOADED REDUCING — C5*0— 



PRESSURE REDUCING OR 

 PRESSURE REGULATING. 

 INCREASED ACTUATING 

 PRESSURE CLOSES VALVE 



PRESSURE REDUCING OR 

 PRESSURE REGULATING, 

 INCREASED ACTUATING 

 PRESSURE OPENS VALVE 



PRESSURE REGULATING, 

 WEIGHT. LOADED 



-cfe- 

 -0X3- 



SAFETY, BOILER 



Y 



CHECK VALVES 



VALVE 

 GENERAL SYMBOL 



CHECK, LIFT 



CHECK, SWING 



GLOBE, STOP CHECK 



Figure 9-10.— Engineering symbols. 

 202 



11.330.1(11A) 



