Compact device eliminates annoying noises and damage to pipes and appliances caused by water shock. Permanent pre-charged chamber with sealed-in diaphragm which flexes to absorb shock. Will not waterlog. Maximum water temperature: 180° F.
For automatic, continuous venting of air from all hy-
dronic heating and cooling systems. Brass body construction with stainless steel and non-ferrous internal working parts. Exclusive vacuum breaker design insures continuous positive venting. For vertical installation only. Maximum pressure 45 psi. Compact size --- only 4” high, 1-3/4” diameter. CAT. NO. MFG. NO. SIZE
EACH 2K518 700-C 1/8” MPT $17.02 400-3 417-3
Hy-Vent™ AIR VENTS
Automatically vents air from hydronic system when installed at high point in system. Brass body with capacity float design, ideal for systems with typically high operating pressures. Max. pres- sure 150 psig on No. 400; 125 psig on No. 417. Max. temperature 240°F.
CAT. NO. MFG. NO. SIZE 2K530 2K531
400-3 417-3
EACH
1/8” MPT $21.07 1/8” MPT $17.00
HEIGHT DIAMETER EACH 4-1/2” 3-1/2”
$58.33
WATER MAIN VENT VALVE Model 79
Designed for use on hot or cold mains and process applications. Tapped at top for 1/8” I.P.S. safety drain
connection for discharging moisture entrained in the vented air. Built-in check valve.
CAT. NO. MFG. NO. SIZE 2K905
401488 OPER. PRESS EACH 1/2” female x 3/4” male 75 $165.31 CONVECTOR & RADIATOR
STEAM & WATER VENT Model 508
A disc-type vent for convectors and radiators with built-in check valve for automatic venting. Can be cleaned while in line.
CAT. NO. MFG. NO. SIZE 2K906
401475 1/8” Straight 15
MAX. PSI STEAM PRESS EACH $19.66
#7A SAFE WASTE CONNECTOR
In situations where safe waste is required by law or in areas particularly susceptible to water damage, the No. 7A connector is used to connect 1/4” copper or plastic tubing to the venting port of Maid-O’-Mist vents. To allow remote venting.
CAT. NO. MFG. NO. EACH 2K701
7A $4.04
#7 HYDRONIC AIR VENT
Reliable automatic air eliminating valves for main line venting of hot water heating and chilled water cooling systems. Made of brass and equipped with a self-clos-
ing float operated valve. Monel metal spring and neoprene valve seat are unaffected by high temperatures. Maximum pressure 75 psi. For vertical mounting only. Dimensions: 4-3/8” high, 2-1/4” diameter.
CAT. NO. MFG. NO. SIZE EACH 2K700
7 1/8” FPT $49.71 #67 HYDRONIC AIR VENT
Small size automatic air vent for installation on base- board radiation and convectors of hot water heating and chilled water cooling systems. Float operated, brass body valves. Vertical mounting. Maximum pres- sure 35 psi. Dimensions: 2-5/8” high, 1-1/2” diameter.