Gate Valves and Accessories – Product Brochure
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Technical Information
Applications
Clover Resilient Seat Gate Valves are suitable for use in pressure and non-pressure water supply and sewerage applications. Gate valves are used to isolate flow within pipeline sections, pipeline equipment and offtakes.
Typical applications include;
- Mining service
- Potable and recycled water supply
- Irrigation and raw water
- Gravity and sewer rising mains
- Fire systems
- Stormwater and drainage
- Buried and above ground
Gate valves should not be used for the purposes of throttling or adjusting flow.
Features and Benefits
| Features | Benefits |
| 10-year manufacturers’ warranty | Confidence of the highest quality valves, backed by a 10-year manufacturer’s warranty. |
| Factory tested | Each gate valve undergoes hydrostatic pressure and operating torque testing |
| Reduced weight design | Safer and easier installation |
| Low operating torque | Fast and efficient operation |
| Full bore design | Eliminates debris build up |
| Local inventory available | Fast and flexible supply to meet project demands |
| Manufactured to AS/NZS2638.2 | Guaranteed quality products |
| Suitable for installation in either horizontal or vertical position | Flexible application |
| Thermally bonded polymeric coating | Long-term corrosion resistance and performance |
Compliance
- AS/NZS2638.2 “Gate valves for waterworks purposes – Resilient seated”
- 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/NZS4020 “Testing of products for use in contact with drinking water”
- ISO5211 “Industrial Valves – Part-turn actuator attachments”
Product & Watermark Certification
Clover Resilient Seat Gate Valves are manufactured and independently third party certified to AS/NZS2638.2 “Gate valves for waterworks purposes – Resilient seated”.
Accreditation body: Australian Certification Services – 25731
Suitability for Use with Potable Water (AS/NZS4020 Compliance)
Clover Resilient Seat Gate 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 Resilient Seat Gate Valves are manufactured with nominal diameters ranging from DN100 to DN200.
For gate valves with larger diameters please contact Clover for additional technical and pricing information.
Pressure
Clover Resilient Seat Gate Valves are manufactured with a standard nominal pressure range of PN25 (2,500kPa).
Coating
Clover Resilient Seat Gate Valves are manufactured with a thermally bonded polymeric coating using a fluidised bed process in accordance with the requirements of AS/NZS4158.
| Specifications | Sym | Units | DN100 | DN150 | DN200 |
| Length | L | mm | 229±1 | 267±1 | 292±1 |
| Wheel Diameter | W | mm | 250 | 250 | 350 |
| Height | H | mm | 330 | 450 | 535 |
| Shoulder Diameter | A | mm | 122.2±0.8 | 175.1±0.8 | 232±0.8 |
| Weight Of Unit (Keycap fitted) | kg | 18 | 24.5 | 55 | |
| Turns To Close (Approx) | Turns | 21 | 32 | 35 | |
| Actual Torque To Seal (Approx) | Nm | 60 | 110 | 140 | |
| Maximum Operating Torque | MOT | Nm | 100 | 150 | 200 |
| ISO5211 Top Mounting Flange | F10 | F10 | F10 |
| Item | Part Name | Material | Standard Grade |
| 1 | Body | Ductile Iron | BS500-7 |
| 2 | Wedge | Ductile Iron | EPDM Encapsulated |
| 3 | Stem Nut | Brass | C48600 |
| 4 | Stem | Stainless Steel | 1Cr17Ni2(431) |
| 5 | Bonnet bolt | Stainless Steel | 316 |
| 6 | Bonnet Gasket | Rubber | EPDM |
| 7 | Bonnet | Ductile Iron | BS500-7 |
| 8 | O-ring | Rubber | NBR |
| 9 | Washer | Plastic | POM |
| 10 | Gland O-Ring | Rubber | NBR |
| 11 | Stem Seal | Rubber | NBR |
| 12 | Seal Retainer | Plastic | POM |
| 13 | Gland | Stainless Steel | 316(CF8M) |
| 14 | Dust seal | Rubber | NBR |
| 15 | Handwheel / Spindle Key Cap | Ductile Iron | BS500-7 |
End Connections
Clover Resilient Seat Gate Valves are manufactured with shouldered end connections in accordance with;
- AS2638.2 Fig 3.2 “Dimensions of shouldered ends”
Pressure
| Nominal Pressure (PN) | Allowable Operating Pressure (AOP) | Maximum Allowable Operating Pressure (MAOP) | Allowable Site Test Pressure (ASTP) | Production Test – Body | Production Test – Seat |
| 25 | 2,500 kPa | 3,000 kPa | 3,125 kPa | 1.5 x Allowable Operating Pressure (3,750 kPa) | 1.1 x Allowable Operating Pressure (2,750 kPa) |
Maximum Operating Temperature
40°
Options & Accessories
Clover Resilient Seat Gate Valves have a range of options and accessories available including:
- Anti-clockwise and clockwise closing models available
- Handwheel and key cap operators
- Gearbox Operator (Spur & Bevel)
- Open and Close Indicator
- ISO5211 Top Mounting Flange
- Lilac coloured key-cap available for recycled water applications
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 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
- Gate valves shall be Clover resilient seated non-rising spindle type conforming to AS/NZS2638.2
- Gate valves shall close in an anti-clockwise / clockwise direction
- Gate valves shall be fitted with a keycap / handwheel
- Gate valve allowable operating pressure shall be 2,500kPa
- Protective coatings of gate valves shall be thermally applied polymeric type in accordance with AS/NZS4158
- Shouldered end connections shall be in accordance with AS2638.2 Fig. 3.2
Technical Documents
Resilient Seat Shouldered End Gate Valve PN25 – Data Sheet
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