Click to enlarge2.75" CF to 1/4" NPT Female
Tapped Center

2.75" OD Conflat to 1/4" NPT Female
Rotatable Adapter

• 304 Stainless
• Center Tap
• F-NPT Female National Pipe Thread

Image(s) Shown For Reference Only

2-3/4" OD CF Conflat Flange:
• 6 Clearance (Thru) Holes
• 0.265" Bolt Hole Diameter

2.75" OD CF Conflat Flange (CFF) Equivalents
275CF, CF35, CF38, CF40, CF275

2.75" OD Conflat To 1/4" Female NPT


Click to enlarge
Click to enlarge
Conflat to Female NPT Tapped Center

2.75" OD Conflat Series Hardware

Click to enlarge
Click to enlarge
Conflat to Female NPT Tapped Side

Teflon Tape - For Use With 1/4" NPT & Larger

Click to enlarge
Click to enlarge
91-S Silicone Vacuum Grease

Thermocouple Gauges

Click to enlarge
Convectron Gauges

Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.
Images Shown May Be For Reference Only

There is a global helium shortage. Each time an MRI is performed, helium is used. Please rethink your helium balloon purchase.