API V11-175 valve balls and seats
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.
Material: stainless steel, ceramic, tungsten carbide:
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 |
Main Specifications for reference:
Dimensional Symbol | V11-106 | V11-125 | V11-150 | V11-175 | V11-200 | V11-225 | V11-250 | V11-375 |
Ball-D +0.020/-0.010 (+0.51/-0.25) | 15.88 (0.625in) | 19.05 (0.75in) | 23.83 (0.938in) | 28.58 (1.125in) | 31.75 (1.25in) | 34.93 (1.375in) | 42.88 (1.688in) | 57.15 (2.25in) |
Seat-ID ± 0.050 (± 1.27) | 11.68 (0.46in) | 13.97 (0.55in) | 17.02 (0.67in) | 20.96 (0.825in) | 24.38 (0.96in) | 26.92 (1.06in) | 33.27 (1.31in) | 43.18 (1.7in) |
Seat-OD +0.000/-0.005 (+0.00/-0.13) | 20.14 (0.793in) | 23.32 (0.918in) | 29.67 (1.168in) | 35.26 (1.388in) | 37.54 (1.478in) | 43.69 (1.72in) | 51.05 (2.01in) | 78.03 (3.072in) |
Seat-H +0.020/-0.010 (+0.51/-0.25) | 0.500 (12.70in) | 0.500 (12.70in) | 0.500 (12.70in) | 0.500 (12.70in) | 0.500 (12.70in) | 0.500 (12.70in) | 0.500 (12.70in) | 0.750 (19.05in) |
We regard customer satisfaction and market cultivation as its central job of service and provides first class product and personalized service. Senior technical engineers and production backbones go deeply into the marker for investigation. And tap the potential demands of customers at the first time. We provide customers with perfect solutions.