It is a critical drive component used in the RV3, RV5, RV8, and RV12 rotary vane pumps to transmit torque between the motor and the pump’s internal rotors . The “H V/LV” designation indicates it is the coupling used between the High Vacuum (HV) and Low Vacuum (LV) stages. If you are rebuilding your RV pump, this is the correct OEM replacement part .
This is a Edwards replacement Oldham coupling for RV series rotary vane pumps.
This is a Edwards replacement orbiting scroll for the XDS35i dry scroll vacuum pump.
This is a Edwards replacement OS Plug for nXDS series dry scroll vacuum pumps. This is a stainless steel (316S16) screw plug that is used to seal specific ports or as a blanking plug on the pump body . It is a component found in major bearing replacement and overhaul kits for the nXDS pumps
This is a Edwards replacement outer shaft seal spacer for RV series rotary vane pumps . It is a small metal ring that fits between the outer shaft seal and the seal carrier. This spacer ensures the shaft seal sits in the correct position on the shaft . If you are replacing the outer shaft seal on your RV pump, this spacer must be installed to prevent leaks .
This is a Edwards replacement pad for the gas ballast check valve. This pad is a critical sealing component used inside the gas ballast system of specific Edwards E1/E2M rotary vane pumps . If you are servicing the gas ballast valve or performing a minor overhaul, this is the correct OEM replacement part
The small but mighty “PAD, VALVE” is often the culprit. This flat, round seal acts like a one-way door inside your pump. When it gets worn out, air leaks, and your pump loses suction.
Our replacement valve pad is made to fix that problem easily. It is a direct-fit part that restores the internal seal. With this new pad, your pump will work like new again, holding strong vacuum pressure without any leaks.
PAIR OF GEARS EH1200 PK1″ is a direct replacement set. It comes as a matched pair, ready to install. Put these new gears in, and your pump will run smooth, quiet, and strong again.
This disc is a small but important part. It acts like a one-way valve inside your pump. When it fails, air leaks back into the system.
Our “PEEK DISC REPAIR, QDP” is the perfect replacement. It is made from PEEK, a tough plastic that resists heat and chemicals.
This is a Parallel Pin (Dowel Pin) with dimensions d8 M5 x 28. It is a precision-ground, hardened steel pin used for accurate alignment, positioning, or as a pivot in machinery. It is commonly used in vacuum pumps and industrial gearboxes to secure housing parts and transmit torque.
This is a Leybold Piston Bushing, designed for the E75 piston pump. This vacstellar-engineered component ensures a secure fit and helps enhance the performance of your pump.
Our Piston Ring (Part# 26501020) is a direct replacement for the original Edwards part. It restores that tight seal. Your pump will pull a stronger vacuum and run more efficiently.
This is a Leybold Piston Ring, designed for the Ruvac pump family. This component ensures optimal sealing, contributing to the efficiency and longevity of your pump .
Our PISTON RING RETAINER is a direct replacement for the original Edwards part (cross-reference 604-454-001). It is small, but without it, your pump will never work right.
This ring is made from PTFE plastic mixed with 30% carbon and graphite filler . The carbon makes it stronger, harder, and more wear-resistant than plain PTFE. It also handles higher temperatures without deforming.
Our 57mm piston ring (Part# 40801056) is a direct replacement for the original Edwards part. It restores that tight seal. Your pump will pull a stronger vacuum and run more efficiently.
Our 64mm piston ring (Part# 40801055) is a direct replacement for the original Edwards part. It restores that tight seal. Your pump will pull a stronger vacuum and run more efficiently.
This is a Leybold Cast Piston Ring, designed for the Ruvac RA3001 pump model . This vacstellar-engineered component plays a crucial role in ensuring optimal performance and reliability in your vacuum applications .
This is a Leybold Piston Ring Set, . It includes 16 vacstellar-engineered rings designed for the Ruvac RA3001 pump model . This set is essential for a complete overhaul, helping to ensure efficient piston operation and restore reliable pump performance .
This is a Leybold Ballast Piston, This specialized brass component is used in Leybold vacuum pumps to control gas flow, helping to optimize pump performance and prevent contamination .
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