RAHUL SJ water meter is a type of network oriented flow meter having a longer working life than most of its peers . This is a mechanical device having a magnetic coupling enabling frictionless movement to provide fault less and accurate reading.
Application –
Measuring the volume of cold potable water passing through the pipeline.
Sizes –
DN15mm
| Dimensions | ||||||
|---|---|---|---|---|---|---|
| Type | Size (mm) | Length (mm) L |
Length with Nipple (mm) |
Width (mm) W |
Height (mm) H |
Connecting Thread D |
| Single Jet Class B |
15 | 110-2 | 250 ±5 | 92 ±1 | 75 ±1 | G 3/4B |
| Technical Specification | |||||
|---|---|---|---|---|---|
| Normal Size DN (mm) |
Class of measurement |
Overload Flow-rate Qmax (m³/h) |
Permanent flow-rate Qn (m³/h) |
Transitional flow-rate Qt (l/h) |
Minimum flow-rate Qmin (l/h) |
| 15 | B | 3 | 1.5 | 120 | 30 |
| Sr. No | Specifications | Dimensions | Tolerances |
|---|---|---|---|
| 1 | Overall length with Nipples (Lt) | 250 | ±5 |
| 2 | Overall length without Nipples (L) | 165 | 0, -2 |
| 3 | Total Width (W) | 83 | ±1 |
| 4 | Height (H) | 97 | ±1 |
| 5 | Threads (Nipples, Tn) | G1/2"B | Via Go/No Go |
| 6 | Threads (Body, Tb) | G3/4"B | Via Go/No Go |
| MATERIALS FOR BODY AND COMPONENT PARTS OF DOMESTIC WATER METER, SIZE 15, 20 & 25 MM | ||
|---|---|---|
| S.No. | Body / Component parts of water meter |
Material used |
| 1 | Body | Brass |
| 2 | Registration Box | ABS |
| 3 | Registration Box Cover (Visual) | Polycarbonate |
| 4 | Cap/Cap lid | ABS |
| 5 | Screws & Studs | High tensile brass |
| 6 | Strainer | HDPE |
| 7 | Impeller | Acetal Polymer (Delrin) |
| 8 | Chamber | ABS |
| 9 | Impeller Shaft | Stainless Steel |
| 10 | Nipples & Nuts | Brass |
| 11 | Bearings | Sapphire (Synthetic) |
| 12 | Dial & Counter | ABS |
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