The folks at Sarvo Pumps would be happy to answer your questions.
We are located at:

Sarvottam Pump Ltd./Sarvo International
Plot No. : 316/317, Sector-24,
Faridabad-121005 (Haryana) INDIA
Phone : +91 129 4025352, 4022333
Mobile : +91 9999684956
Email :info@sarvo.com