ASDV - 1/2" NPT, 0.82 CV, 35 Degree Fahrenheit Ambient Sensing Drain Valve

Applications

The Armstrong ASDV is ideal for protection of piping, valves, fittings, pumps, condensate systems, safety showers, fire lines, spray nozzles, freeze sensitive equipment, etc., or as back-up protection on steam traced systems or equipment.

Operation

The ASDV thermal element senses ambient temperature, and at a pre-set temperature the drain valve will open. Water from the line will then flow past the element. If the water temperature becomes high enough, the valve will then close. If the water temperature is low, the valve will modulate to maintain temperature or will open to drain completely. The valve will be fully open at 35° F (2° C). On rising temperature, the valve will be tightly closed at 40° F (4.4° C)

Advantages

Manual freeze protection with cracked valves for continuous drainage is wasteful and possibly susceptible to freezing. The ASDV automates freeze prevention and reduces waste by opening only when freezing is imminent and closing when the danger is past. Water loss is minimized and damage and down time are eliminated. The unique ram-type plug and seat provide reliable, tight shut-off longer than any other design. All valves are 100% factory tested.

Details:

• Maximum operating pressure: 300 PSI (21 bar)
• Standard temperature set point: 35° F
• 0.82 Cv
• Connection type: screwed
• Connection size: 1/2"
• Body material: 304 stainless steel