www.greatinfusions.com: espresso cups and barista gear, showroom in Santa Cruz

Voltage Controlled Pump Pressure (Ulka) - Page 5

Postby Carneiro on Wed Jul 27, 2011 4:18 am

Well, thanks, but I couldn't even copy and paste to a translator... :mrgreen:
User avatar
Carneiro
 
Posts: 1018
Joined: Jul 16, 2009
Location: Brazil

Postby indend007 on Sun Jul 31, 2011 12:07 am

Image

Image

Image

Image


ULKA PUMP - With PWM Controller / Pressure controlling youtube clip

http://www.youtube.com/watch?v=2Ugl5pp5zaQ



Pwm control isn't same with voltage control(with resistance) method.

Model : Flowell kc04(made by flowell-south korea company)
http://www.ulka.co.kr/product02_sole.htm


Maybe, It useful to

1. Low level pressure pre-infusion without E-61 preinfusion chamber(miss silvia, or gaggia), and user custom pre-infusion.
2. Adjust max pressure when extracting triple ristretto shot (with raised max pressure (OPV limit) matter.. )



And, As I known..
About ULKA flow rate is...

Image


E-mail : indend007@naver.com
Enjoy! Espresso! Http://bwissue.com
User avatar
indend007
 
Posts: 78
Joined: Dec 31, 2010
Location: south korea