Threaded Safety Valves

Brass Safety Valves

A brass safety valve is an economical safety valve with a brass body and spring mechanism that opens at the set pressure to relieve excess pressure in heating and water circuits.

It is used on central heating boilers, calorifiers, booster tanks and closed water circuits. The product range includes 1/2″ to 3″ straight and angle models with adjustable set pressure.

1/2″ – 3″size (product range)

Adjustableset pressure can be changed

Straight / anglebody types

Brassbody

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Main Applications

Central heating boilers
Calorifiers and hot water tanks
Booster tanks
Closed water circuits
Compressed air tanks (depending on model)

Technical Data

Type	Adjustable brass safety valve
Sizes	1/2″, 3/4″, 1″, 1¼”, 1½”, 2″, 2½”, 3″ (product range)
Body form	Straight and angle (product range)
Connection	Threaded; male or female inlet (depending on model)
Setting range	Depending on model
Body	Brass (depending on model)
Temperature	Depending on model
Fluid	Water, hot water (depending on model)

Material Options

Part	Adjustable brass valve	Fixed-set valve
Setting	Adjustable on site	Fixed at the factory
Body	Brass	Brass
Size	1/2″ – 3″	1/2″ – 1¼”
Typical use	Boilers, booster sets	Combi boilers, calorifiers

Which material? On an adjustable valve the set pressure must be set by an authorised person and then sealed; the protected equipment’s maximum pressure must not be exceeded. Setting range and temperature are confirmed per model.

Advantages

Adjustable

Pressure set on site

Wide Size Range

From 1/2″ to 3″

Angle Type

Easy installation

Economical

Brass body

Construction and Design Features

Brass body
Adjusting screw and spring
Disc and seal
Discharge outlet

Send the size, body type, set pressure and fluid; we will confirm a suitable brass safety valve from stock.

How to Choose?

Size and typeChoose thread size and straight or angle type.
Set pressureSet it by the protected equipment limit.
FluidConfirm water or hot water.
CapacityChoose a size that suits boiler output.

Complementary Products

Pressure Gauges Expansion Tanks Booster Sets & Hydrophores Heating Manifolds Pressure Measurement and Control Equipment Safety Valves

Why ORFA?

Since 1985Over 40 years of experience in supplying industrial piping equipment.

Technical ConsultancyTechnical support on adjustable valve selection.

Delivery from StockBrass safety valves are shipped from stock.

Compatibility CheckAssessed together with Expansion Tanks for pressure tanks.

In This Group

Other Threaded Safety Valves

Flame Arresters

Flame arresters stop flashback on flammable gas lines and protect the line and equipment.

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Bronze Safety Valves

Bronze safety valves have a bronze body and threaded ends and open to protect the system when the set pressure is exceeded.

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Compressor Safety Valves

Compressor safety valves release excess pressure in air compressors and receivers to protect the equipment.

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Stainless Steel Safety Valves

Stainless steel safety valves have a stainless steel body and threaded ends and protect against overpressure.

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Fixed-Set Safety Valves

Fixed-set safety valves open at a pressure set in the factory that cannot be changed.

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Water Heater Safety Valves

Water heater safety valves release excess pressure in water heaters and boilers to protect the appliance.

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Our Products

Our Brass Safety Valves

ORFA supplies brass safety valves in a range of pressure classes, sizes and connection types to suit your application. Descriptions, technical specifications, materials and dimension tables are available on each detail page.