Copied VR20 3/4" Vacuum Relief Valve with Dust Cover
VR20 3/4" Vacuum Relief Valve with Dust Cover
Features:Prevents internal vacuum conditions: Guards against siphonage, burnt-out heaters, and collapsing of storage tanks and negative pressure.Opens quickly in emergencies: Opens on a one-inch mercury vacuum.Listed by CSA: Inspector friendly, peace of mind.Every valve is tested for performance before shipping: Specify and install with confidenceApplications:For protection of commercial hot water supply systems and pressure vessels against negative pressureThe Cash Acme VR20 Vacuum Relief Valve is designed to protect hot water supply systems and pressure vessels against negative pressure. It is especially well-suited for many domestic and commercial systems.It works by preventing internal vacuum conditions that could result in burned-out heaters and collapsed storage tanks - especially copper. Installed on the cold water supply line, the Cash Acme VR20 closes tightly under pressure and opens at a 1" mercury vacuum. The atmosphere admitted to the system breaks the vacuum, preventing the collapse of the storage tank. It is recommended that the VR20 be installed in an upright position.The VR20 also features a low-profile design with a slotted vent hole. Circular dust protects the vent hole cover approximately 1.75" in diameter. This valve features an all-brass body and body cap, a heat-resistant silicone seat disc, an integral body seat, and brass internal working parts.
Price Comparison
| Seller | Contact Seller | List Price | On Sale | Shipping | Best Promo | Final Price | Volume Discount | Financing | Availability | Seller's Page |
|---|---|---|---|---|---|---|---|---|---|---|
|
BEST PRICE 1 Product Purchase
|
|
$33.00 | $21.88 |
|
$21.88 | See Site | Visit Store |
Reviews
Questions & Answers
First Aid Label "First Aid Kit"
$18.70
Coaxial Cable Stripper
$26.15
120mm Polypropylene Lightweight Funnel
$49.55
3060415 Penetration Probe for N2014
$188.30
Traceable Data Logging Thermohygrometer with NIST
$238.10
1/4in NPTF Brass Male Hex Nipple
$3.02
Coreback Black Lumbar Support Belt
$37.43
Aluma-Lite Sign "Caution Foot Protection Required"
$22.21
FEIN 92036236090 Turbo II Wet/Dry Dust Extractor/Vacuum
$429.95
TheraPutty Exercise Putty, Blue, 1 Pound
$38.74
Dura-Vinyl OSHA Sign "Danger Poison"
$6.38
Shape Circle Blue
$2.74
Q19 Rechargeable Cordless Vacuum Cleaner High Power APS+PC Car Home Handheld Vacuum Cleaner - White
$11.33
7/8" Expander Head
$63.43
Cottageview Dog Kennel
$349.95
Swing Check Valve, Domestic
$190.30
Micro Flannel Reverse to Sherpa Blanket, Twin, Wine
$59.99
A6 Budget Binder PU Leather Budgeting Planner Organizer Book Cover with Zipper Envelopes for Budgeting Expense Budget Sheets Sticky Labels - Black
$4.07
Compression Lug Flex Cable Long, 1/0 Awg, 1/4" Stud
$4.22
12" 250MCM Wire/Cable Cutter with Steel Handle
$111.20
3.5L Cat Water Fountain Intelligent Sensing Timing Settings Pet Fountain Super Silent Dog Water Dispenser for Multiple Pets
$68.99
Adhesive Vinyl Sign "Exit" & Left Arrow Symbol
$15.39
2 x 1 Clamp Concentric Reducer
$59.35
Sensi-Wrap 6in x Self-Adherent Bandage Rolls, Pink
$36.31
#10-24 H3 Plug Chamfer Spiral Point Tap - TiN
$10.85
Ground Clamp
$364.30
Full Port Brass Ball Valve, 3/4"x3/4" FNPT
$32.28
31113 Vinyl Cloth Porta-Pack Refill Page w/ Legend: 113
$32.21
Kutzall Original - Sphere Burr, 1/4'' Shank, Head Diameter 1'', Coarse
$23.75
Safety Sign "Look Out for Forklift", Plastic
$213.90
Modular Plug 8p8c
$59.66
PU Leather Storage Bag for IQOS ILUMA One Pattern Printed Portable Cigarette Cover Box Holder - Paisley Black
$3.87
532 Portable Coin Purse Makeup Storage Bag Earphone Electronic Accessories Organizer Money Cash Pouch Wallet - Green Leaf
$1.89
Foil Pre-printed Wire Marker w/ Legend: 12
$75.59
Heavy Duty Post Microscope Stand
$256.20
Bearing for Stirrer Assembly, 29/42, 10mm
$167.00
Sign Warning "Hard Hat Area"
$4.75
CSA Pictogram Sign Tripping Hazard Graphic
$18.73
B-401 Notice Fire Regulations Demand... Sign
$9.98
