Product Details

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