Application
High and low pressure hot water systems.
Video
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Tempering Valve - Temperature Settings. |
| Run-time: 25 seconds |
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Tempering Valve - Pressure Ratings. |
| Run-time: 15 seconds |
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Requires Windows Media Player to be installed.
Standards
- Complies with NZ Building Code G12 (2001)
- Complies with NZS 4617:1989
Specifications
| Overall length: |
| TV12 |
110mm |
| TV15 |
100mm |
| TV15P |
100mm |
| TV20 |
105mm |
| TV20D |
130mm |
| TV20S |
130mm |
| TV25 |
135mm |
| Inlets: |
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Hot Inlet |
Cold inlet |
| TV12 |
15mm, ½" BSP (male) |
12mm John Guest |
| TV15 |
15mm, ½" BSP (male) |
15mm, ½" BSP (male) |
| TV15P |
15mm, ½" BSP (male) |
15mm, ½" BSP (male) |
| TV20 |
20mm, ¾" BSP (male) |
20mm, ¾" BSP (male) |
| TV20D |
20mm, ¾" BSP (male) |
20mm, ¾" BSP (male) |
| TV20S |
20mm, ¾" BSP (male) |
20mm, ¾" BSP (male) |
| TV25 |
25mm, 1" BSP (male) |
25mm, 1" BSP (male) |
| Outlet: |
| TV12 |
12mm John Guest |
| TV15 |
15mm, ½" BSP (male) |
| TV15P |
15mm, ½" BSP (male) |
| TV20 |
20mm, ¾" BSP (male) |
| TV20D |
20mm, ¾" BSP (male) |
| TV20S |
20mm, ¾" BSP (male) |
| TV25 |
25mm, 1" BSP (male) |
| Minimum inlet pressure: (above highest outlet) |
| TV12 |
20 kPa (2m head) [2.9 P.S.I. (6' 6¾")] |
| TV15 |
30 kPa (3m head) [4.4 P.S.I. (9' 10")] |
| TV15P |
30 kPa (3m head) [4.4 P.S.I. (9' 10")] |
| TV20 |
20 kPa (2m head) [2.9 P.S.I. (6' 6¾")] |
| TV20D |
30 kPa (3m head) [4.4 P.S.I. (9' 10")] |
| TV20S |
30 kPa (3m head) [4.4 P.S.I. (9' 10")] |
| TV25 |
20 kPa (2m head) [2.9 P.S.I. (6' 6¾")] |
- Maximum inlet pressure: 1000 kPa [145 P.S.I.] (TV25 up to 1600kPa).
- Maximum temperature: 99°C (TV20S able to withstand 100˚C constant).
- Outlet temperature: (factory set): 55°C.
- Adjustable outlet temperature: 35°C - 60°C.
- DR (Dezincification Resistant) brass.
Flow Chart
Installation
- Refer to Technical Area for
installation guide.
- Valve must be fitted by a qualified plumber.
- Installation must comply to local authority requirements.
- Standard tempering valves are designed to be installed close to the water heater, or at an
acceptable distance from a plumbing fixture. Do NOT install a standard tempering valve at point of
use.
- TV15P should be used as a point of use tempering valve.
- Valve may be installed horizontally or vertically.
- Flush pipes prior to fitting.
- Valve must be protected by a filter.
- Connections are H (hot inlet), C (cold inlet) and MIX (mixed outlet).
- Do not apply heat near valve during installation, this may damage element.
- Do not install in outlet of cylinder.
- Provide minimum 150mm heat loop.
- Balanced pressure recommended, unequal up to 5.1 (cold to hot) ratio, non-return must be fitted to
hot inlet.
- Cylinder thermostat setting must be set 10°C above valve outlet
temperature (minimum cylinder temperature 65°C).
- Non-returns are required on hot and cold inlets for ring main installations.
Temperature Adjustment
Using screwdriver in slot provided, remove cap. To decrease temperature turn adjusting screw clockwise
(C), to increase temperature turn anticlockwise (H). Replace cap. Tempering valve comes factory set at
55°C, 45˚C for childhood centres, schools, old peoples homes and hospitals.
Sectional View
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Brochure
Download the new TV25 Tempering Valve brochure as a PDF* or contact us to have one sent to you.
Download as PDF
*Requires Adobe Acrobat Reader to be installed.
Product Codes
| TV12 |
15mm BSP Hot - 12mm John Guest Cold & Mix |
| TV15 |
15mm Standard Valve (non-return in both inlets) |
| TV15P |
15mm Point Of Use Valve (non-return in both inlets) |
| TV20 |
20mm Standard Valve (non-return in cold inlet only) |
| TV20D |
20mm Ring Main Installation (non-return on both inlets) |
| TV20S |
20mm Solar Tempering Valve |
| TV25 |
25mm Standard Valve (non-return in both inlets) |
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