Watson McDaniel O-Series Water/Oil/Air Regulating Valves

The Watson McDaniel O-Series Water/Oil/Air Regulating Valves with heavy-duty cast-iron bodies and internal strainers are suitable for a wide range of applications in the low-to-moderate flow range. Applications include small heaters, humidifiers, various hospital equipment, tire molds, as well as many other general uses.

O-Series contains hardened stainless-steel seat and disc for extended service life. Phosphor Bronze Diaphragm specifically designed for Steam service is considered a preferred choice over Stainless Steel diaphragms which are prone to work-hardening and potential cracking. Viton diaphragms are specifically designed for water, air, gases and other liquid service and have a working temperature range up to 300°F.

Showing 1–25 of 42 results

Watson McDaniel O-11-N-09-V Pressure Regulating Valve (For Liquid)
O-11-N-09-V
Sale!
Original price was: $ 470.00.Current price is: $ 398.09.
Watson McDaniel O-11-N-10-V Pressure Regulating Valve (For Liquid)
O-11-N-10-V
Sale!
Original price was: $ 470.00.Current price is: $ 398.09.
Watson McDaniel O-11-N-13-V Pressure Regulating Valve (For Liquid)
O-11-N-13-V
Sale!
Original price was: $ 470.00.Current price is: $ 398.09.
Watson McDaniel O-11-N-14-V Pressure Regulating Valve (For Liquid)
O-11-N-14-V
Sale!
Original price was: $ 470.00.Current price is: $ 398.09.
Watson McDaniel O-12-N-09-V Pressure Regulating Valve (For Liquid)
O-12-N-09-V
Sale!
Original price was: $ 481.00.Current price is: $ 407.77.
Watson McDaniel O-12-N-10-V Pressure Regulating Valve (For Liquid)
O-12-N-10-V
Sale!
Original price was: $ 481.00.Current price is: $ 407.77.
Watson McDaniel O-12-N-13-V Pressure Regulating Valve (For Liquid)
O-12-N-13-V
Sale!
Original price was: $ 481.00.Current price is: $ 407.77.
Watson McDaniel O-12-N-14-V Pressure Regulating Valve (For Liquid)
O-12-N-14-V
Sale!
Original price was: $ 481.00.Current price is: $ 407.77.
Watson McDaniel O-13-N-09-V Pressure Regulating Valve (For Liquid)
O-13-N-09-V
Sale!
Original price was: $ 491.00.Current price is: $ 416.24.
Watson McDaniel O-13-N-10-V Pressure Regulating Valve (For Liquid)
O-13-N-10-V
Sale!
Original price was: $ 491.00.Current price is: $ 416.24.
Watson McDaniel O-13-N-13-V Pressure Regulating Valve (For Liquid)
O-13-N-13-V
Sale!
Original price was: $ 491.00.Current price is: $ 416.24.
Watson McDaniel O-13-N-14-V Pressure Regulating Valve (For Liquid)
O-13-N-14-V
Sale!
Original price was: $ 491.00.Current price is: $ 416.24.
Watson McDaniel O-14-N-0007-V Pressure Regulating Valve (For Liquid)
O-14-N-0007-V
Sale!
Original price was: $ 768.00.Current price is: $ 650.98.
Watson McDaniel O-14-N-0008-V Pressure Regulating Valve (For Liquid)
O-14-N-0008-V
Sale!
Original price was: $ 768.00.Current price is: $ 650.98.
Watson McDaniel O-14-N-0009-V Pressure Regulating Valve (For Liquid)
O-14-N-0009-V
Sale!
Original price was: $ 768.00.Current price is: $ 650.98.
Watson McDaniel O-14-N-0010-V Pressure Regulating Valve (For Liquid)
O-14-N-0010-V
Sale!
Original price was: $ 768.00.Current price is: $ 650.98.
Watson McDaniel O-14-N-0809-V Pressure Regulating Valve (For Liquid)
O-14-N-0809-V
Sale!
Original price was: $ 1,152.00.Current price is: $ 975.26.
Watson McDaniel O-14-N-0910-V Pressure Regulating Valve (For Liquid)
O-14-N-0910-V
Sale!
Original price was: $ 1,152.00.Current price is: $ 975.26.
Watson McDaniel O-15-N-0007-V Pressure Regulating Valve (For Liquid)
O-15-N-0007-V
Sale!
Original price was: $ 1,088.00.Current price is: $ 922.02.
Watson McDaniel O-15-N-0008-V Pressure Regulating Valve (For Liquid)
O-15-N-0008-V
Sale!
Original price was: $ 1,088.00.Current price is: $ 922.02.
Watson McDaniel O-15-N-0009-V Pressure Regulating Valve (For Liquid)
O-15-N-0009-V
Sale!
Original price was: $ 1,088.00.Current price is: $ 922.02.
Watson McDaniel O-15-N-0010-V Pressure Regulating Valve (For Liquid)
O-15-N-0010-V
Sale!
Original price was: $ 1,088.00.Current price is: $ 922.02.
Watson McDaniel O-15-N-0809-V Pressure Regulating Valve (For Liquid)
O-15-N-0809-V
Sale!
Original price was: $ 1,381.00.Current price is: $ 1,170.07.
Watson McDaniel O-15-N-0910-V Pressure Regulating Valve (For Liquid)
O-15-N-0910-V
Sale!
Original price was: $ 1,381.00.Current price is: $ 1,170.07.
Watson McDaniel O-16-N-0008-V Pressure Regulating Valve (For Liquid)
O-16-N-0008-V
Sale!
Original price was: $ 1,268.00.Current price is: $ 1,074.48.

Watson McDaniel O-11-N-09-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-11-N-10-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-11-N-13-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-11-N-14-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-12-N-09-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-12-N-10-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-12-N-13-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-12-N-14-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-13-N-09-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-13-N-10-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-13-N-13-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-13-N-14-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-14-N-0007-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-14-N-0008-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-14-N-0009-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-14-N-0010-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-14-N-0809-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-14-N-0910-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-15-N-0007-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-15-N-0008-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-15-N-0009-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-15-N-0010-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-15-N-0809-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-15-N-0910-V Pressure Regulating Valve (For Liquid)

Watson McDaniel O-16-N-0008-V Pressure Regulating Valve (For Liquid)