Valve Ball and Seat

API V11 Valve Ball and Seat
 
Valve  balls and valve seats  are widely used  in oil fields , their  performance directly affects the use effect and service life of the  pumps.
Each ball-and-seat combination is vacuum tested to ensure a perfect seal is obtained in all positions of contact.
API Material Symbol

Symbol	Symbol	Hardness	Material
A1	Stainless Steel	Ball: HRC 58-65 Seat: HRC 52-56	UNS 41000-UNS 44000
B1	Cobalt Alloy, Cast	Ball: HRC 56-63 Seat: HRC 50-56	Cobalt, chromium, and tungsten alloy
B2	Cobalt Alloy, Powder Metal	Ball: HRC 53-60 Seat: HRC 51-57	Cobalt, chromium, and tungsten alloy
C1	Tungsten Carbide	Ball: HRA 88-89 Seat: HRA 88-89.5	Tungsten with Cobalt binder
C3	Titanium Carbide	Ball: HRA 89-90.5 Seat: HRA 89-90.5	Tungsten and titanium carbide with cobalt binder

API Ball and Seat Size

API No.	Seat Size	Ball Size
V11-106	1-1/16"	5/8"
V11-125	1-1/4"	3/4"
V11-150	1-1/2"	15/16"
V11-175	1-3/4"	1-1/8"
V11-200	2"	1-1/4"
V11-225	2-1/4"	1-3/8"
V11-250	2-3/4"	1-1/16"
V11-375	3-3/4"	2-1/4"

Puyang Zhongshi Group
Add:Mazhuangqiao,Puyang City,Henan Province,China
http://en.chinajixie.com
  www.zs-oilfieldequip.com
  www.chinajixie.com
Tel:+86-393-4805739  Fax:+86-393-4805579
Mobile:+86-13839306379  

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