Click to enlargeNW40 Centering Rings Aluminum or 304 SS

NW40 (KF40) Flange Centering Ring with O-Ring
• Buna-N (Nitrile NBR): 100°C Max
• Viton (Fluorocarbon, FKM): 200°C Max
• Silicone (Chemical Series): 200°C Max
• NW40 (KF40, QF40) High Vacuum Hardware

Fits NW40 (KF40) Flange OD: Ø2.18"
• NW40 Flange Centering Ring Counter Bore: 1.62"

NW40 High Vacuum Flange Equivalents
KF40, KF-40, K150, NW-40, QF40, ISO-QF

NW, KF, QF Series High Vacuum Flanges

NW40 (KF40) OD: 2.18" – Centering Ring Counter Bore: 1.62"





NW40 Centering Ring <br> (NW40-150-SR-V)
NW40 Centering Ring <br> (NW40-150-AR-V-OS)
NW40 Centering Ring
(NW40-150-SR-V)

Stainless - Viton Ring
Price: $17.13
Sale: $7.50
NW40 Centering Ring
(NW40-150-AR-V-OS)

Aluminum - Viton Ring
Price: $13.95
Overstock: $6.00
NW40 Centering Ring <br> (NW40-ARV-PK25)
NW40 Centering Ring <br> (NW40-ARV-PK100)
NW40 Centering Ring
(NW40-ARV-PK25)

Aluminum - Viton Ring
PACK OF 25!
Price: $348.75
Sale: $150.00
NW40 Centering Ring
(NW40-ARV-PK100)

Aluminum - Viton Ring
PACK OF 100!
Price: $1,395.00
Sale: $500.00
NW40 Centering Ring <br> (NW40-150-SR-B)
NW40 Centering Ring <br> (NW40-SRB-PK25)
NW40 Centering Ring
(NW40-150-SR-B)

Stainless - Buna Ring
Price: $14.75
Sale: $7.00
NW40 Centering Ring
(NW40-SRB-PK25)

Stainless - Buna Ring
PACK OF 25!
Price: $368.75
Sale: $154.00
NW40 Centering Ring <br> (NW40-150-AR-B)
NW40 Centering Ring <br> (NW40-ARB-PK25)
NW40 Centering Ring
(NW40-150-AR-B)

Aluminum - Buna Ring
Price: $10.05
Sale: $5.50
NW40 Centering Ring
(NW40-ARB-PK25)

Aluminum - Buna Ring
PACK OF 25!
Price: $251.25
Sale: $119.00
NW40 Centering Ring <br> (NW40-150-SR-S)
NW40 Centering Ring <br> (NW40-150-AR-S)
NW40 Centering Ring
(NW40-150-SR-S)

Stainless - Silicone Ring
Price: $13.00
Sale: $8.00
NW40 Centering Ring
(NW40-150-AR-S)

Aluminum - Silicone Ring
Price: $10.50
Sale: $8.00
NW40 Centering Ring Without O-Ring <BR> (NW40-150-SR)
NW40 Centering Ring Without O-Ring <BR> (NW40-150-AR)
NW40 Centering Ring Without O-Ring
(NW40-150-SR)

Stainless
$5.00
NW40 Centering Ring Without O-Ring
(NW40-150-AR)

Aluminum
$4.00
NW40 HV to UHV Metal Seal Centering Ring <br> NW40-150-AR-UHV
NW40 HV to UHV Metal Seal Centering Rings <br> NW40-AR-UHV-PK5
NW40 HV to UHV Metal Seal Centering Ring
NW40-150-AR-UHV

$70.00
NW40 HV to UHV Metal Seal Centering Rings
NW40-AR-UHV-PK5

$349.00
NW40 Centering Ring Sintered Metal Filter <br> (NW40-SMF)
Click to enlarge
NW40 Centering Ring Sintered Metal Filter
(NW40-SMF)

Price: $114.76
Sale: $78.00
NW40 Screened Centering Rings

NW40 Clamp & Ring Assembly <br> (NW40-CW-SRV)
Click to enlarge
NW40 Clamp & Ring Assembly
(NW40-CW-SRV)

Price: $36.06
Sale: $13.00
NW40 to NW32 Adaptive Rings

Click to enlarge
NW40 Overpressure & Centering Ring Assembly <br> (NW40-150-SRV-OPR)
NW40 O-Rings (All)

NW40 Overpressure & Centering Ring Assembly
(NW40-150-SRV-OPR)

Price: $31.71
Sale: $14.00
NW40 Overpressure Ring <br> (NW40-150-OPR)
Click to enlarge
NW40 Overpressure Ring
(NW40-150-OPR)

Assembly Required
Price: $9.50
Sale: $6.00
All NW40 Hardware


Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or
info@ldsvacuum.com

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.
Viton® is a registered trademark of DuPont Dow Elastomers