CAST IRON DN 150 FIRE HYDRANTS

FRICTION LOSS DOESNT EXCEED ONE METER (1 m) OF WATER IN HEIGHT IN WATERSUPPLY 60 m3/H.

SCREWS AND THE BOLTS HOLDING HEAD OF FYDRANT MADE BY STAINLESS STEEL

FOR SEALING THE UPPER PART OF BODY THERE ARE SUITABLE ELASTIC SEALING RINGS ( 0-rings or relevant material)

SHAFT  OF STAINLESSSTEEL 1.4021 ( X20Cr13 or AISI 420 )

SEALING COATING OF EPDM WITH SUITABLE SHAPE THAT ENSURES GRADUAL REDUCTION IN WATER QUANTITY DURING TURNING OFF.

DRAINAGE HOLE COVER:  ON THE LOWEST POSSIBLE POINT OF HYDRANT BODY SO THAT WATER IS RELEASED WHEN HYDRANT IS TURNED OFF.

DISK SEAT :  MADE OF COPPER ALLOY WITH HIGH RESISTANCE IN CRUSHING

MATERIAL OF BODY :  CAST IRON GG25 EN DIN1691 WITH MINIMUM  THICKNESS OF INNER WALLS  12 mm.

JOINT PINS WHICH WITH HOLD ALL INNER PARTS 0F HYDRANT ARE ALL SAME AND  MADE OF STAINLESS STEEL

COVER OF OUTLETS  CAST AND MADE EXACTLY ACCORDING DRAWINGM275/10 AND THEY ARE  SECURED ON THE BODY WITH THE HELP OF TWO CHAINS OF 40 mm LENGTH. THE TOP HEAD COVER  ACCORDING TO DRAWING M275/1 AND THE OUTLET COVERS  PENTAGON SHAPED WITH EACH SIDE MEASURING 25 mm

DIAMETER AND PITCH OF THREAD OFOUTLETS : EXTERNAL DIAMETER OF THREAD 23/4'' (82,5 mm) , ANGLE OF THREAD 55 0,PITCH OF THREAD : FIVE THREADS TO INCH, AND LENGTH OF THREAD 18 mm. NO INTERNATIONAL STANDARD APPLIED HERE FOR OUTLETS. ITIS A SPECIFIC MANUFACTURE FOR GREEK WATER COMPANY.

TWO TOTAL BODY LENGHTS : 160-180 cm AND 200-220  cm

OUTLETS : 2 OUTLETS SYMMETRICAL RIGHT AND LEFT 2 ? (64 mm) DIAMETER

WORKING PRESSURE : 16 BAR, SEALING TEST PRESSURE 17,6 ( 16,1 x 1,1 ) BAR AND BODY TESTPRESSURE 24 BAR

INFLOW : DN 150 NOMINAL DIAMETER FLANGE, NOMINAL PRESSURE 16 PN EN  DIN 2533

NOMINAL DIAMETER : DN 150

SPECIFICATION

CAST IRON DN 150 FIRE HYDRANTS WITH TWO OUTLETS