Page 392 - Lewis

Vented Loops 391

Vented Loops Vented Loops
316 Stainless Steel Bronze

75CV 150J

FIG 1548

Used in discharge line when toilet is set below water line.
FIG 1360 INCLUDES an air vent to prevent back siphoning.
No. Each O.D. Description
The 20013 Marine Vented Loop provides a proven way to break 3/4 $65.00 3/4" Cast Bronze
the vacuum in marine water systems. Bank siphonage will be 1-1/2 115.10 1-1/2" Cast Bronze
broken if the loop is approximately two feet above water level. 75CV 14.55 3/4" Microchek Valve
The Vacuum Breaker has a normally closed poppet which keeps 150J 23.95 1-1/2" Spare Vent Valve Only
vent line fumes from the vessel. The breaker is designed for a WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
corrosion proof service life with a protected air vent. All of the
parts exposed to liquid are manufactured from Delrin. The
Sensitive Breaker - automatically opens and prevents back Vented Loops
siphoning. Normally closed - two feet of water vacuum will
cause breaker poppet to open. The External Stainless Steel
Spring is not in liquid. Has a protective dust cover. Use for
Heads, Bilge Pumps, Shower Pumps, and Engine Exhaust Lines.
No. Each Size
VL-06 $103.05 5/8
VL-07 106.60 3/4
VL-11 120.75 1-1/8
VL-15 152.75 1-1/2

Vented Loops
Virtually Clog-Free FIG 9475

Loops are molded black plastic for durability and trouble-free
operation. Inside of loop is smooth for better flow.
No. Each Vent Loop
3101 $24.55 3/4" Vented Loop with 1/4" Barb
3131 30.25 1-1/2" Vented Loop with 1/4" Barb VENTED LOOPS

Vented Loops

FIG 9625
FIG 9246
Made of black non-corrosive material. Install in inlet and dis-
All bronze with mounting tabs for easy installation. The over- charge plumbing and position so they remain approximately
sized vent valve is virtually clog-free and can easily be eight inches above the waterline at any angle of heel or trim.
removed without tools for inspection or cleaning by unscrew- The one-way valve in the vent fitting allows air into the loop
ing the threaded cap. The cap has 1/2" IPS thread for optional when a vacuum is present caused by a siphon condition and
overboard venting. Mounting hardware INCLUDED. closes when under pressure.
No. Each O.D. No. Each O.D.
HVL750 $194.90 3/4" Hose MF842 $33.05 3/4" with Valve
HVL1000 163.50 1" Hose MF844 47.55 1" with Valve
HVL1500 182.35 1-1/2" Hose MF847 55.10 1-1/8" with Valve
VL1504 63.65 Spare Valve for All MF840 37.05 1-1/2" with Valve