Hydronic Expansion Tanks & Kits

WATER HAMMER ARRESTOR

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.

CAT. NO. MFG. NO. PIPING CONNECTIONS Maximum Pressure 2K406

150A 1/2” MPT 150 psi Hydronic Air Vents

FLOAT TYPE AIR VENT Model 700-C

For automatic, continuous venting of air from all hydronic heating and cooling systems. Brass body construction with stainless steel and non-ferrous internal working parts. Exclusive vacuum breaker design insures continuous posi- tive venting. For vertical installation only. Maximum pressure 45 psi. Compact size --- only 4” high, 1-3/4” diameter.

CAT. NO. MFG. NO. SIZE 2K518

700-C 1/8” MPT

EACH $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

1/8” MPT 1/8” MPT

EACH $21.07 $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 1/2” female x 3/4” male

OPER. PRESS EACH 75

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

MAX. PSI STEAM PRESS EACH 15

$19.66 $165.31

#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 2K700

7 1/8” FPT

EACH $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.

CAT. NO. MFG. NO. SIZE 2K702

67 AUTOMATIC HOT WATER

AIR VALVE Model 17SR

Hygroscopic air valve for hot water radiation. Working pressure 30 psi, 225°F maximum operating temperature.

CAT. NO. MFG. NO. DESCRIPTION SIZE 2K716

113004 458 17SR 1/8” IPS

EACH $49.55

1/8” MPT

EACH $13.53

#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

HYDRONIC & STEAM SYSTEMS