Danfoss OFC Check and Stop Valve Installation Guide
- June 4, 2024
- Danfoss
Table of Contents
Danfoss OFC Check and Stop Valve
Refrigerant
UL is listed for R134a, R513A, and R515B. CE approved for fluid group 2, including R1234ze(E). For other refrigerants, visit http://store.danfoss.com/ and search for individual codes, where refrigerants are listed as part of product details.
- Oil: OFC valve is designed for an oil-free environment
- Media Temperature:
- Min. 0 ⁰C / 32 ⁰F
- Max. 90 ⁰C / 194 ⁰F, short term up to 100⁰C / 212⁰F
- Max. Working Pressure:
- PS/MWP = 23 bar / 334 psig
Contents of accessory box
- Outlet flange for 3 1/8 in. copper tube
- Outlet flange fasteners
- O-ring for outlet flange
- O-ring lubrication (2 grams)
- Additional check valve springs (2 pcs):
- Yellow spring, for 45⁰ down orientation
- Red spring, for horizontal orientation
Installation
Install the valve directly on the Danfoss Turbocor compressor, the picture is shown with vertical down installation. Protect the valve from impact in the installation.
- All fasteners and bolts require stainless steel. Bolts with minimum class A2-70.
NOTE: Protection of the entire valve including the steel flange is
recommended after installation for outdoor use.
Outlet Flange Brazing:
Place the outer flange on an evenly cut copper pipe
NOTE: Ensure the flange is not mounted on the main housing during brazing.
Orientation
NOTE:
Check valve spring must be changed when using any orientation other than
vertical downing.
Always replace the lock ring and cap after opening/ closing the ball valve
.
When changing the check valve spring
- Remove the check valve insert from the main housing
- Remove the check valve head
- Remove the spring and replace it with the correct color based on the intended orientation
- Replace the check valve head and insert
- Install outlet flange, O-ring, and fasteners.
