Hydrants & Isolation Valves Hydrant & Air Isolation Valve PN35

Applications

Clover hydrant & air valve isolation valves are used in combination with hydrants and air valves to provide isolation of the accessory for maintenance.

Typical applications include;

• Potable and non-potable water supply
• Irrigation and raw water
• Fire systems
• Buried and above ground

Compliance

• NZS4522 “Underground fire hydrants”
• AS/NZS4158 “Thermal-bonded polymeric coatings on valves and fittings for water industry purposes”
• AS1646 “Elastomeric seals for waterworks purposes”
• AS1831 “Ductile cast iron”
• AS/NZS4087 “Metallic flanges for waterworks purposes”
• AS/NZS4020 “Testing of products for use in contact with drinking water”

Product Certification

Clover hydrant & air valve isolation valves are manufactured and independently third party certified to NZS4522 “Underground fire hydrants”

Accreditation body: Australian Certification Services – 30048

WSAA Product Appraisal

Clover hydrant & air valve isolation valves are independently appraised and recommended by the Water Services Association of Australia (WSAA);

• Product Appraisal 18/17

WSAA Purchase Specification

Clover hydrant & air valve isolation valves comply with the requirements of the following Water Services Association of Australia (WSAA) purchase specification(s);

• WSA PS282 – Hydrant and Air Valve Isolator Valves Water Supply

Suitability for Use with Potable Water (AS/NZS4020 Compliance)

Clover hydrant & air valve isolation valves are suitable for potable water applications and comply with the requirements of AS/NZS4020 “Testing of products for use in contact with drinking water”.

Diameter Range

Clover hydrant & air valve isolation valves are manufactured with nominal diameters ranging from DN80 to DN100.

Pressure

Clover hydrant & air valve isolation valves are manufactured with a standard nominal pressure of PN35 (3,500kPa).

Coating

Clover hydrant & air valve isolation valves are manufactured with a thermally bonded polymeric coating using a fluidised bed process in accordance with the requirements of AS/NZS4158 “Thermal-bonded polymeric coatings on valves and fittings for water industry purposes”.

End Connections

Clover hydrant & air valve isolation valves are manufactured with flanged inlet connections in accordance with AS/NZS4087 Fig. B6 (PN35).

Outlet connections are manufactured and supplied with stud bolts fitted compatible with either a DN80 or DN100 AS/NZS4087 Fig. B6 (PN35) flange connection to accommodate a spring hydrant valve, air valve or screwed outlet.

Maximum Operating Temperature

70° (40° maximum for AS/NZS4020 compliance)

Options & Accessories

Clover hydrant & air valve isolation valves have a range of options and accessories available including:

• Lilac coloured yoke for non-potable water applications
• Spring Hydrants
• Hydrant/Air Valve covers
• Hydrant/Air Valve marker posts
• Flange gasket kits
• Valve extension spindles

Contact Clover for further information.

Mechanical Properties – Ductile Iron

Property	Value & Unit
Ultimate tensile strength (Minimum)	500MPa
Elongation (Minimum)	7%
Density (Specific Gravity)	7.1

Mechanical Properties - Coating

Property	Value & Unit
Internal Surface (in contact with drinking water)	350 Microns
External Surface	300 Microns

Installation, Operation & Maintenance

Flange Assembly Installation Guide

PDF, 216.5K

Download

Installation Training

Clover’s in-house engineering team provides a range of training, accreditation and technical support services.

The Clover Academy installation training course provides installers with important information relating to the correct handling, installation, testing, maintenance and repair of Clover pipe systems and products.

Contact the Clover engineering team to discuss scheduling a training program.

Technical Support

Clover’s in-house engineering team combines specialist technical knowledge, creative thinking and on-the-job experience, to offer our clients a range of project planning and consultation services.

From recommendations on product innovations, to crafting complex end-to-end solutions, our collaborative approach bridges the gap between contractors, authorities and suppliers. The only Australian provider able to offer clients the full product suite, Clover offers unbiased, strategic insights that always consider the bigger picture.

From initial planning, to onsite training and technical assistance, we offer input across every stage of your project’s timeline. Our contribution continues beyond the project design, and we remain accessible for ongoing changes and developments over the course of each project.

We work with contractors, asset managers, local councils and government, developers and other pipeline professionals to specify bespoke product solutions. By engaging our team of engineers, you gain access to unparalleled product knowledge and expertise.

Recommended Specifications

• Hydrant & air valve isolation valves shall be Clover type conforming to NZS4522
• Hydrant & air valve isolation valves shall be DN80 / DN100
• Hydrant & air valve isolation valves allowable operating pressure shall be 1,600kPa / 3,500kPa
• Protective coatings of Hydrant & air valve isolation valves shall be thermally applied polymeric type in accordance with AS/NZS4158
• Inlet flanges shall be raised face type in accordance with AS/NZS4087 Fig. B5 / AS/NZS4087 Fig. B6

Technical Documents