Apex Pressure Relief Valve 37kPa - RV3.7

Model: RV3.7

Apex Pressure Relief Valve 37kPa - RV3.7

Application:

• Low pressure hot water systems.
• Pressure systems for marine applications.  

Standards:

• Complies with NZ Building Code G12 (2001)
• Complies with NZS 4608:1992
• NZ Patent No. 209613  

• N.Z. forged, high quality, corrosion resistant DR brass body.
• Silicone rubber seals able to withstand 99˚C.
• Body easily unscrews to allow cleaning of seats and seals.
• Unique vacuum break provided means valve retro fits all other similar relief valves at replacement.
• Vacuum relief provided failsafe agains over pressure and implosin .

Installation:

• Refer to Technical Area for installation guide.
• Install approximately 1 metre above Pressure Reducing and Cold Water Expansion Valves.
• May be installed vertically or horizontally provided vacuum break is used..
• Provide 150mm heat loop.
• Do NOT apply heat near valve during installation.

Thermal Expansion:
Under normal conditions, a 180 litre hot water cylinder when heated from cold to 65°C will expel 3.6 litres (12.6 meters of 20mm copper pipe) of water due to thermal expansion. The amount of expansion will vary depending on the volume of hot water used and cylinder capacity.

Accessories:

• VBN Vacuum Break
• 15mm Female to 20mm Male reducer.

• Inlet: 20mm, 3/4" BSP (male)
• Outlet: 15mm, 1/2" BSP (male)
• Length: 80mm (valve)
                107mm (c/w vacuum break)
• Standard pressure settings
  • 37 kPa [5.4psi]
  • 75 kPa [11psi]
  • 120 kPa [17psi]
• Special settings up to 415 kPa [60psi].
• Maximum temperature: 99˚C.
• Minimum temperature: 1˚C.
• Kilowatt Rating: 12 kW
• Vacuum Break (VBN) available separately.  

Downloads
	Apex Catalogue