Hebei Tongli specializes in poducts welded ball valve /All welded ball valves
JKTL fully welded ball valve conform to one or more of the following specifications for pressure, temperating ratings and dimensions: ASME/ANSI, ISO 14313/API6D, ISO 10423/API6A, ISO 14723/API 6DSS, DIN, AFNOR, British standards, ISO 9000 and API Q1.
| Pressure range | ASME/ANSI Class 150 to 2500 |
| Temperature range | -20°F to 250°F (-29°C TO 121°C) |
| Body | ASTM A350 Gr. LF-2(M) |
| End connection | ASTM A350 Gr. LF-2(M) |
| Ball | ASTM A694 Gr.F50(M) Chrome plated or ENP |
| Seat ring | AISI 1040 |
| Seat load spring | AISI 1040 |
| Stem seals | PTFE |
| Lips | PTFE |
| Seat ring insert | Nylon |
Ball valve in fully open position.
Medium: water.
Density in 1000kg/m3
KVS:
| DN | 10 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 |
| Kv | 7 | 6 | 14 | 26 | 43 | 64 | 100 | 160 | 280 | 450 | 690 | 1100 | 1500 | 2770 |
| A×10-4 | 0.79 | 0.79 | 1.77 | 3.14 | 4.9 | 8.04 | 12.56 | 19.63 | 33.18 | 50.27 | 78.54 | 122.72 | 176.71 | 314.16 |
| z | 0.32 | 0.44 | 0.41 | 0.37 | 0.33 | 0.4 | 0.4 | 0.39 | 0.36 | 0.32 | 0.33 | 0.32 | 0.35 | 0.33v |
Fire-Tested for Safety
JKTL fully welded ball valves can be supplied to API6FA, API607 and ISO 10497 standards. If industry standards change or customer requirements vary from the above, please contact your sales representative.
Trunnion Mounted Ball Allows Low-Torque Operation
Regardless of size or pressure rating, every JKTL fully welded ball valve is trunnion mounted. High-strength forged stems are located in PTFE impregnated stainless steel bearings for smooth, accurate operations. Trunnion mounted stems absorb the thrust from line pressure, preventing excess friction between the ball and seats, so even at full rated working pressure, operating torque stays low.
Test Valve Integrity
When the valve body is vented, the seat seal’s integrity is verified. This test can be performed with the valve open or closed. Valve performance can also be validated by verifying valve seat seal integrity.
Features and Benefits
Upsteam Sealing
At low pressure, seat-to-ball contact is maintained by Belleville Springs. At higher pressures, seat contact is reinforced by line pressure.
Product Description
