• Model NO.：API V11-225, API V11-175,API V11-150,V11-250
• Sample：Available
• Drawing：Available
• Transport Package：Wood Package
• Specification：V11-125,V11-175,V11-225,V11-250
• Trademark：zhongshi
• Origin：Henan, China
• HS Code：843143100
• Production Capacity：50000PCS,Year

API No.
Seat Size
Ball Size
V11-1061-1/16"5/8"V11-125 1-1/4"        3/4"V11-1501-1/2" 15/16"V11-1751-3/4"1-1/8"V11-200
2"
1-1/4"
V11-2252-1/4"1-3/8"V11-250
2-3/4"
1-1/16"
V11-375
3-3/4"
2-1/4"
 
Features:
 
 
1) Castings of main alloys: cobalt-base alloy, nickel -base alloy and stellite alloy
 
 
 
2) Available forms: end product or blank
 
 
 
3) Properties: good resistance against corrosion and oxidation
 
 
 
4) Main application: extensively used in petrochemical industry, marine     exploration, heat exchanger and pump
 
 
 
5) Processing: investment casting, sand casting


Materials for Balls and Seats
 
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
 
stellite valve seat
1. High strength, high wear resistance, high precision, good temperature resistance and good corrosion resistance.
2. Mainly used for the sealing of valves of oil pumps in petroleum industry's containing wells, viscous oil wells, sea oil wells and high pressure sulfur resistant oil wells, etc.
3. Balls and seats are used with compatible cemented carbide valve seats.
4. The finished surface, tolerance standard have reached the standards of the machine industry: G5, G10, G16, G40 and G100 of JB/T 9145-1999.
5. Precision machined cemented carbide balls of other grades and specifications are also available based on customers` demands.
6. Compatible high precision valve seats can also be made.