This is a Edwards replacement fan cowl for nXDS series dry scroll vacuum pumps. The fan cowl is the large plastic cover on the back of the pump that houses the cooling fan. If your cowl is cracked, damaged, or missing, this is the correct OEM replacement part
This kit is designed by Edwards to enable an experienced technician to perform maintenance and repair on nXDS pumps up to and including bearing replacement .
This is a Edwards replacement O-ring. The part number is 085-031-425. It has an inner diameter of 1 3/4 inches and an outer diameter of 2 inches. The cross-section (thickness) of this O-ring is 1/8 inch (0.139 inches) . This is a standard AS568-219 size O-ring . It is used in various Edwards vacuum pumps for sealing static and dynamic applications . If you are rebuilding your pump, this is the correct OEM replacement part.
This FKM “GP” (General Purpose) O-ring measures exactly 15.6 mm inner diameter with 2.4 mm thickness. It replaces Part #H02122037 (cross-reference OV-0680) . This O-ring is specifically used on Edwards E1M18 and E2M18 pump models . The FKM (Viton) material handles high heat up to 200°C and harsh chemicals better than standard rubber.
This FKM O-ring measures exactly 9.1 mm inner diameter with 1.6 mm thickness. It replaces Part #H02122007. The “GP” stands for General Purpose . FKM (Viton) material handles high heat, chemicals, and oils better than standard rubber, with low outgassing properties ideal for vacuum applications
This FKM O-ring measures exactly 5.6 mm inner diameter with 2.4 mm thickness. You get a pack of 5 (PK5). It replaces Part #H02123027 (cross-reference OV-0600). The FKM material handles high heat and harsh chemicals better than standard rubber.
This FKM O-ring measures exactly 11.1 mm inner diameter with 1.6 mm thickness. You get a pack of 5 (PK5). It replaces Part #H02123009. This is a standard metric size under BS4518 . The FKM material handles high heat and harsh chemicals better than standard rubber.
This FKM O-ring measures exactly 21.6 mm inner diameter with 2.4 mm thickness (size code 0216). You get a pack of 5 (PK5). It replaces Part #H02106026. This is a standard metric size under BS4518 (RM0216-24) . The FKM material handles high heat and harsh chemicals better than standard rubber.
This FKM O-ring measures exactly 21.8 mm inner diameter with 2.4 mm thickness (size code 0218). You get a pack of 5 (PK5). It replaces Part #H02106028 (cross-reference OV-0218) [citation:H02106028]. This is a standard metric size under BS4518 . The FKM material handles high heat and harsh chemicals better than standard rubber.
This FKM O-ring measures exactly 44.9 mm inner diameter with 5.7 mm thickness (size code 0449). It replaces Part #H02106093. This is a standard BS4518 metric size [citation:H02106093]. It is used as a centering ring seal for ISO-250 and ISO-320 vacuum flanges . The FKM material handles high heat and harsh chemicals better than standard rubber.
This FKM O-ring measures exactly 104.5 mm inner diameter with 3 mm thickness. You get a pack of 2 (PACK 2). It replaces Part #H02121090. This is a standard metric size under BS4518 (RM1045-30) . The FKM material handles high heat and harsh chemicals better than standard rubber.
This Buna O-ring measures exactly 107.6 mm inner diameter with 2.6 mm thickness. It replaces Part #2125300 (cross-reference OB-1050E) . This O-ring is specifically used on Edwards E2M28 and E2M30 pump models . The Buna-N (Nitrile) material offers great oil resistance at a fair price.
This Nitrile O-ring measures exactly 107.63 mm inner diameter with 2.62 mm thickness. It replaces Part #H02124145 (cross-reference OV-1007). The Nitrile (Buna-N) material offers great oil resistance at a fair price. This is a standard size used in many vacuum pump applications.
This Viton O-ring measures exactly 109.5 mm inner diameter with 3 mm thickness. It replaces Part #2122091 This O-ring is specifically used on Edwards EH Booster and QMB Blower pump families, including QMB250, EH250, QMB500, and EH500 models
This FKM O-ring measures exactly 109.5 mm inner diameter with 3 mm thickness. It replaces Part #H02122091 (cross-reference OV-1551). This O-ring is used on Edwards EH Booster and QMB Blower pump families, including QMB250, EH250, QMB500, and EH500 models . The FKM material handles high heat and harsh chemicals better than standard rubber.
This Buna O-ring measures exactly 11.1 mm inner diameter with 1.6 mm thickness. It replaces Part #02122009 . This O-ring is used on a wide range of Edwards pump families, including EH Booster, QMB Blower, and E1/E2M models, covering pumps like QMB250, EH250, QMB500, EH500, E2M28, and E2M30 .
This Buna O-ring measures exactly 11.1 mm inner diameter with 1.6 mm thickness. It replaces Part #2120009 . This O-ring is specifically used on Edwards E2M0.7, E2M1, and E2M1.5 pump models . The Buna-N (Nitrile) material offers great oil resistance at a fair price.
This Buna O-ring measures exactly 11.6 mm inner diameter with 2.4 mm thickness. It replaces Part #02120033 This O-ring is specifically used on Edwards E1M18 and E2M18 pump models .
This small Viton O-ring measures exactly 11.6 mm inner diameter with 2.4 mm thickness. It replaces Part #02122033. This O-ring is used inside Edwards XDS dry scroll pumps, booster pumps, and E1/E2M series oil pumps. The Viton material handles high heat and harsh chemicals better than standard rubber.
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