Nordsteam Steam and Flow Control GroupSafety ValvesPROPORTIONAL LIFT SAFETY VALVE WITH SPRING

PROPORTIONAL LIFT SAFETY VALVE WITH SPRING

PROPORTIONAL LIFT SAFETY VALVE WITH SPRING

PROPORTIONAL LIFT SAFETY VALVE WITH SPRING
PROPORTIONAL LIFT SAFETY VALVE WITH SPRING
Product Information
Product Name - PROPORTIONAL LIFT SAFETY VALVE WITH SPRING
Model NST-OKEV/Y
Product Category - · Nordsteam Steam and Flow Control Group · Safety Valves
Product Brand - Nordsteam

Product Features
PROPORTIONAL LIFT SAFETY VALVE WITH SPRING

PRODUCT DESCRIPTION
NST-OKEV/Y Proportional lift safety valves with springs are prefered in hot/cold water systems,fluid that no properties of acid and alcaline and also not flammable

SPARE PARTS
No Part Name Material
1 BODY

GG25 –EN GJL 250
GGG40 –EN GJS 400-15

2 COVER

GG25 –EN GJL 250
GGG40 –EN GJS 400-15

3 SEAT X5CrNi18-8 –AISI 302
4 SPRING X12CrNi18 8 –AISI 302
5 FLAP X5CrNi18 10 –AISI304
6 SHAFT X5CrNi18 10 –AISI304

DIMENSIONS
SIZE d L1 L H
DN25 115 100 105 405
DN32 140 105 115 410
DN40 150 115 140 430
DN50 165 125 15, 480
DN65 185 145 170 512
DN80 200 155 195 555

CONNECTIONS FLANGED
SIZES DN25 DN32 DN40 DN50 DN65 DN80
WEIGHTS (KGS) 9,8 11,7 13,8 17 26,5 30

TECHNICAL SPECIFICATIONS
THE RANGE OF OPERATING TEMPERATURE (°C)

-10/120C DEGREE AT 16 BAR
13 BAR 200 °C
11 BAR 250 °C
10 BAR 300 °C

CONNECTION SIZES TS EN 1092-2 (PN16)
NOMINAL PRESSURE (BAR) PN6
FACE TO FACE DIMENSIONS TS EN 558
DESIGN TS EN ISO 4126
TESTS TS EN 12266-1