Honeywell SV300 Product specification sheet

EN0H-1336GE23 R0807 • Subject to change

SV300

Safety valve

Product specification sheet

Application

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

•Stainless steel filter insert

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 tempera-	Max. 80 °C
ture
Nominal pressure	PN 16
	PN 25 on request
Minimum pressure	0.7 bar
Connection size	DN 50 - 450

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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.							14					15		24				39		82	159	247	407	512	824	947
											kg
Dimensions									(mm)
											L					230					292		310				350		480	600	730	850	980	1100	1200
											H					235					294		400				433		558	650	823	944	990	1250	1250
											h					83					93		100				110		143	173	205	230	260	290	310
kvs-value									m3/h							43					43		103				167		407	676	1160	1600	1600	3300	3300

EN0H-1336GE23 R0807 • Subject to change

68 www.honeywell.com