Orange vs Green Udor Pump: Which Is Right for Softwash?
The short answer: There is no real difference between the orange and green Udor softwash pumps. The orange BE Centurion (part Z42PPGR) is the same SH-rated Udor ZETA-PP 42 as the green pump, just painted orange, with Viton seals. The pump to keep away from regular bleach is the black ZETA-P, which is built for agricultural spraying.
Orange vs green vs black Udor pumps
| Green Udor ZETA-PP 42 | Orange BE Centurion (Z42PPGR) | Black Udor ZETA-P | |
|---|---|---|---|
| Materials | Polypropylene heads, manifolds and pipes; 316 stainless valves; Kynar valve cages; Viton O-rings; Greentech diaphragms | The same ZETA-PP 42 pump painted orange, with Viton seals | Polyester-resin or plasticized-aluminum heads and nylon manifolds |
| SH / bleach safe? | Yes | Yes | No — not for regular sodium hypochlorite |
| Best use | Softwash and other SH-rated pumping | Softwash — this is the pump on our BE SW1165HEZ | Agricultural spraying |
Frequently asked questions
Is the orange Udor bleach-safe?
Yes. The orange BE Centurion is a ZETA-PP 42 with polypropylene heads and Viton seals, so it is rated for sodium hypochlorite (SH). Rinse the pump with fresh water after you run bleach.
Which Udor pump should I use for softwash?
Use the green Udor ZETA-PP or the orange BE Centurion. They are the same poly-head, SH-rated softwash pump. Do not use the black ZETA-P for regular bleach work.
What is the black Udor ZETA-P for?
The black ZETA-P is an agricultural spray pump. It has polyester-resin or plasticized-aluminum heads and nylon manifolds, which are not meant for regular sodium hypochlorite.
How should I care for Udor diaphragms when using SH?
Rinse the pump with fresh water after any SH job. Green diaphragms are the Greentech material used in the SH-rated ZETA-PP. Black diaphragms are usually Buna-N and are not the right choice for regular bleach use. If you need a rebuild, we carry a genuine Udor diaphragm repair kit for Zeta pumps.
What's the difference between green and black Udor diaphragms?
Green diaphragms are Greentech, the material used in the SH-rated ZETA-PP. Black diaphragms are usually Buna-N. If you are pumping bleach, stick with the Greentech (green) diaphragms and rinse the pump with fresh water after each job.
Where can I buy an orange Udor softwash pump?
Cigar City Softwash carries the BE SW1165HEZ, an 11 GPM, 300 PSI softwash system with the orange Udor Zeta (BE Centurion Z42PPGR) and a Honda GX200 electric start, currently $2,199.99.