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Irrigation Product Listings & Reviews
Weathermatic N-100 Series Valve
Description:
This is Weathermatic's economy valve for residential use. This valve is only available in 1" size, but is available in several configurations; one with threaded ends, one with glued ends (for PVC pipe), and one with male thread and barbed ends (for poly pipe). This valve is available with or without a flow control.
Model Numbers:
- N-100 (FIPT x FIPT, no flow control)
- N-100F (FIPT x FIPT, with flow control)
- N-100S (Slip x Slip, no flow control)
- N-100SF (Slip x Slip, with flow control)
- N-100MB (MIPT x Barb, no flow control)
- N-100MBF (MIPT x Barb, with flow control)
Features:
- PVC body
- A flow control stem ("F" models only).
- Molded shock cone to reduce water hammer.
- Normally closed.
- Stainless steel spring.
- Self-cleaning flex ports.
- Internal manual bleed lever for manual operation.
- Reverse flow porting to reduce diaphragm stretching.
- 150 PSI rating.
Review:
A very basic inexpensive valve for residential use, such as tract homes. Has some good features not found on most valves in this class, such as reverse flow porting, and a non-rising flow control. I recommend you stay away from the models without a flow control.
Manufacturer's Performance Data:
Valve Pressure Loss for N-100 Series
| Flow |
0-4 |
6 |
8 |
10 |
12 |
14 |
16 |
18 |
20 |
22 |
24 |
26 |
28 |
30 |
32 |
35 |
| PSI Loss |
1.2 |
1.7 |
2.5 |
3.0 |
3.4 |
3.8 |
4.1 |
4.4 |
4.6 |
4.8 |
5.1 |
5.4 |
5.8 |
6.3 |
6.6 |
7.3 |
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