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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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