Caleffi 519700A
Caleffi 519700A
Hover to zoom
1 Of 5

Caleffi Differential Pressure By-pass Valve, 1-1/4" NPT Inlet with 1-1/4" NPT Outlet

Model:

519700A

Write A Review
$185.29
Factory-Direct
Ships in 4-7 Business Days
synchrony card logo
$31 / Month
Suggested monthly payments with 6 month financing.
Caleffi Differential Pressure By-pass Valve, 1-1/4
Caleffi Differential Pressure By-pass Valve, 1-1/4" NPT Inlet with 1-1/4" NPT Outlet
Model: 519700A
$185.29
Features
Specifications
Reviews
Product Q&A
How-To Articles
Manuals
Share

Features

    The Caleffi Differential Pressure By-pass Valve is used in systems with a fixed speed circulating pump supplying several zones controlled by two way zone valves. This valve ensures that the head pressure of the pump is proportional to the number of two way valves being closed. It will bypass the differential pressure created by the pump as the zone valves close, thus eliminating water hammer noise. The Caleffi Differential Pressure By-pass Valve has a Maximum Primary Flow Rating of 45 GPM.
  • Caleffi 519700A Features
  • Used in systems with a fixed speed circulating pump supplying several zones
  • Connection Type: Threaded
  • Connection Size: 1.25 Inches
California residents see
Warning: This product can expose you to chemicals including Lead which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov

Specifications

519700A
specs product image PID-24493
Overview
Product Category
Boiler Accessories
General Information
Product Line
Series 519
Product Category
Boiler Accessories
Valve Type
By-Pass
Connection Type
NPT
Material
Brass
Performance
Maximum Flow Rate
45 GPM
Minimum Operating Temperature
32 F
Maximum Operating Temperature
230 F
Dimensions
End 1 Connection Type
NPT Inlet
End 1 Connection Size
1 1/4 Inches
End 2 Connection Type
NPT Outlet
End 2 Connection Size
1 1/4 Inches
Product Weight
1.5 Pounds
Warranty Information
Parts Warranty Learn More
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
2 Years

Reviews

Caleffi 519700A Reviews & Ratings
Be the First to Write a Review
Do you own this product?
Please share your insights with fellow shoppers.

Product Q&A

Expert avatar photo
Be the First to Ask A Question Answered by Ken, the eComfort Product Expert

How-To Articles

Hydronic System Accessory Guide
Hydronic System Accessory Guide
How warm does a coat keep you without gloves and a hat? Accessories are sometim...
How to Increase Efficiency and Comfort in Your Boiler
How to Increase Efficiency and Comfort in Your Boiler
Low energy costs and a comfortable home are the hallmarks of an efficient, effe...
How to Pick the Perfect Hot Water Towel Warmer
How to Pick the Perfect Hot Water Towel Warmer
Hydronic towel warmers are a great way to take advantage of your existing hot w...
eComfort How-To Library
eComfort How-To Library
Articles, Tips and Buying Guides from Our Experts

Manuals

 
Media Gallery
Caleffi Differential Pressure By-pass Valve, 1-1/4" NPT Inlet with 1-1/4" NPT Outlet
Caleffi 519700A
Customer Review Images