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Brass pressure reducing valve with threaded connections and adjustment knob

Watts

Watts M115-2 TH Pressure Reducing Valve 2 In Threaded 400 psi 160 F 30-300 psi

SKU CH-M4MD-XJ3MV

A ductile iron pressure reducing valve with threaded connections handles up to 400 psi and 160 F while adjusting outlet pressure from 30 to 300 psi

  • Product typeTraffic & Parking Lot
  • Full-port design maintains flow efficiency
  • Ductile iron body rated to 400 psi operating pressure
  • 316 stainless trim resists corrosion at 160 F
  • Pilot adjusts outlet pressure from 30 to 300 psi
  • NSF-listed fusion-bonded epoxy coating protects water quality

2-Inch Threaded Pressure Reducing Valve

The Watts M115-2 TH is a full-port pressure reducing control valve designed for 2-inch threaded pipe connections. It features a ductile iron ASTM A536 body with NSF-listed fusion bonded epoxy lining and coating. The valve operates at pressures up to 400 psi and temperatures up to 160 F with a maximum continuous flow rate of 210.

Suits Installers Needing Adjustable Pilot Control

This valve suits plumbing professionals requiring a pilot adjustment range of 30 to 300 psi for precise downstream pressure regulation. Internal trim uses 316 stainless steel with Buna-N elastomers for durability. Buyers needing a flanged connection, a different pipe diameter, or a valve rated for higher temperatures should look at alternative models.

Verify Threaded Pipe Compatibility Before Ordering

Confirm your system uses 2-inch threaded piping compatible with the valve's connection type. Ensure the operating pressure does not exceed 400 psi and the fluid temperature stays within the 160 F limit. Check that the 30 to 300 psi adjustment range covers your required downstream pressure setting.

How it compares

Measured against everything we stock in Bath Accessories & Soap Dispensers, at today’s prices. Recalculated every night.

Price $2,349.99
Pricier than about 99% of the 1,499 comparable items (median $39.99).

Specifications

Product
Brand nameWATTS
Product typeTraffic & Parking Lot

Questions about this item

What pipe size and connection type must the existing plumbing have for this valve to fit?

The valve requires a 2-inch pipe with a threaded connection.

Will the ductile iron body and 316 stainless trim hold up if the system runs at the 400 psi maximum operating pressure?

The ductile iron ASTM A536 body and 316 stainless trim are rated for the 400 psi operating pressure.

How can I verify the valve is regulating pressure correctly after installation?

Check the downstream pressure gauge; the pilot adjustment range is 30 to 300 psi.

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