الصفحة الرئيسية > Term: ball and test
ball and test
A deep well pump valve in which a ball fits into a seat and prevents the backflow of oil or water. Each standing valve and each traveling valve has a ball and seat.
- قسم من أقسام الكلام: noun
- المجال / النطاق: التعدين
- الفئة: تعدين عام; Mineral mining
- Government Agency: USBM
0
المنشئ
- ed.young
-
(V.I.P) 21084 النقاط - 100% positive feedback
(Milwaukee, United States)
