Honeywell SV300 Product specification sheet

Construction

The safety valve comprises:

• Housing with PN16 flanges per ISO7005-2, EN1092-2

• Pilot valve 66-300

• Control circuit with ball valves on inlet and outlet

• Control circuit with integral rinsable filter insert

Materials

• Ductile iron housing, cover plate and diaphragm plate
(ISO 1083), powder coated

• Red bronze/stainless steel regulating cone

• Stainless steel pressure spring and control rod

• Fibre-reinforced NBR diaphragm

• NBR and EPDM seals

• Stainless steel valve seat

• High quality synthetic material control circuits

• Brass compression fittings

• Brass pilot valve housing

EN0H-1336GE23 R0807 • Subject to change

• Stainless steel filter insert

SV300

Safety valve

Product specification sheet

Application

Safety valves of this type are controlled by the medium flowing
through it via a pilot valve.It is preferably installed in branches of
supply pipework and protects downstream parts of a system
which are at risk from unacceptable excess pressure which can,
for example, be caused by pumps.

If the inlet pressure to the valve rises up to the set opening pres­sure, then the valve opens immediately to the maximum flow
position. If the pressure falls to the set pressure, then the valve
closes slowly to prevent pressure shock loads.

Special Features

• High flow capacity

• Light weight

• Powder coated inside and outside - Powder used is physio­logically and toxicologically safe

• Integral control circuit and ball valves

• No external energy required for operation

Range of Application

Medium Water

Operating pressure Max. 16 bar

Opening pressure 1 - 12 bar adjustable

Technical Data

Operating tempera­ture

Nominal pressure PN 16

Minimum pressure 0.7 bar

Connection size DN 50 - 450

Max. 80 °C

PN 25 on request

www.honeywell.com 67

SV300 Safety valve

Method of Operation

Safety valves of this type limit the pressure in the pipework
because any over pressure in the pipework causes the valve to
open, which then balances the pressure. After rapid opening, the
valve then closes slowly to prevent pressure shock loads.

Options

SV300- ... A =Housing with flange, PN 16,

ISO 7005, EN 1092-2

SV300- ... Z = PN 25, on request

Connection size

Connection size DN 50 65 80 100 150 200 250 300 350 400 450
Weight approx.kg14 15 24 39 82 159 247 407 512 824 947

Dimensions (mm)

L

230

H

235

h

83

k

-value m3/h 43 43 103 167 407 676 1160 1600 1600 3300 3300

vs

292
294

93

310
400
100

350
433
110

480
558
143

600
650
173

730
823
205

850
944
230

980
990
260

1100
1250

290

1200
1250

310

68 www.honeywell.com

EN0H-1336GE23 R0807 • Subject to change