R351 SAFETY RELIEF VALVE - Kodsan
Over 35 years of experience in manufacturing HVAC equipment
Plumbing Equipments /

R351 SAFETY RELIEF VALVE

Features

Body
Brass CW 614N UNI EN 12164

Spring
Stainless steel, AISI 302

Diaphragm
Elastomer

Obturator Seals
Elastomer

Connection Size
G ½”x G ¾”- G 1¼”x G 1½”

Threaded Connections
FF UNI EN ISO 228

Technical Characteristics

Fluids
Water, air

Temperature Range
+5 °C ≤ T ≤120 °C

Maximum Allowable Pressure
PS 12

Calibration Pressure
150 kPa (1,5 bar) ≤ Pset ≤1000 kPa (10 bar)

Backpressure
Atmospheric

Discharge Overpressure
+%10

Closing Differential
- %20

Orifis Diameter
DN=15 mm

Net Section
A=1,76 cm²

Maximum Powential Generator
48 kW ≤ P ≤181 kW

Technical Data

Product Code Connection Size Product Code Connection Size Threaded Connections Calibration,Pset
(bar)
Maximum Power
(kW)
R3510410 ½” x  ½” R3510510  ¾” x  ¾” FF UNI EN ISO 228 1,50 48
R3510420 R3510520 FF UNI EN ISO 228 2,00 55
R3510430 R3510530 FF UNI EN ISO 228 2,50 68
R3510440 R3510540 FF UNI EN ISO 228 3,00 75
R3510450 R3510550 FF UNI EN ISO 228 3,50 83
R3510460 R3510560 FF UNI EN ISO 228 4,00 96
R3510470 R3510570 FF UNI EN ISO 228 4,50 103
R3510480 R3510580 FF UNI EN ISO 228 5,00 109
R3510490 R3510590 FF UNI EN ISO 228 6,00 128
R3510471 R3510571 FF UNI EN ISO 228 7,00 148
R3510481 R3510581 FF UNI EN ISO 228 8,00 166
R3510411 R3510511 FF UNI EN ISO 228 10,00 181

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