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Product details
Size: Full Path & Standard Diameter DN50 (2") ~ DN 1,400 (56")
Pressure Grade: ANSI Class 150~2,500, PN 16~420
Working temperature: - 29 (- 20) ~ + 200 (- 392)
Adaptive media: petroleum/gasoline, liquefied natural gas/liquefied petroleum gas, petrochemical industry, steel plant, heating pipeline, etc.
Operation mode: handle, gear (vertical/horizontal), electric
Standard characteristics
Butt welding for solid structure-flange end
Mirror polishing entire stainless steel sphere to be inspected
Pre-loaded cushion spring ensures tight leakage at low temperature and reduces torsional force during valve operation
Anti-burst stem in accordance with international standards
Stem dry bearings and metals with PTEF coating for automatic lubrication without additional lubricants
Floating or Fixed Ball Valve
Selection characteristics: (according to requirements)
Self rescue valve seat
Vertical device and extended stem
Special ports and paths
Antistatic device
Stem can handle grease urgently
Seat Lubricant and Emergency Sealant Equipment
Metal to Metal Seat Seal
Double Cut-off and Emission
Double piston seat
Safety and Fire Protection Design with Graphite Washer
Plastic Polymer for Seat Sealing
Safety valve for body cavity
Non-electroplating nickel on ball and stem
Material Material of Fully Welded Cylindrical Ball Valve
Valve body: carbon steel ST37, A106-B, STPG 370, A105, ASTM A516-60, A216-WCB or equivalent. Stainless steel 304 or 316 (selected as required)
Spherical: Stainless steel 304 or 316
Seat: Metal seats with polymer seals, PTFE, RTFE, Viton, Nylon, Peek, etc.
Structural characteristics
1. BTL fully welded ball valve body is forged with high quality material, ball side-mounted, flange and neck are fully welded, and there are few leakage points in fully welded structure.
2. Seat piston effect. The ball valves produced by BTL can provide three combinations of piston effect: 1. Single piston effect seats are used upstream and downstream, that is, DBB function; 2. Both upstream and downstream are double piston effect seats, that is, DIB-1 function; upstream is single piston effect seat; downstream is double piston effect seat, that is, DIB-2 function;
3. There are two kinds of sealing structures between the valve seat and the sphere: one is the traditional soft sealing structure, the other is the BTL combined sealing structure which has obtained the national patent technology.
4. The valve stem is designed for blowout prevention, which can prevent the stem from ejecting from the valve body due to improper operation.
5. All BTL welded ball valves have fire-proof and anti-static devices.
6. Emergency grease injection port is designed at seat seal and stem seal. Normal sealing does not depend on sealing grease. When leakage occurs due to damage to sealing surface, sealing grease can be injected for emergency repair. A grease injection valve and an embedded one-way valve are installed at each grease injection orifice.
7. Sewerage outlet and vent. A drain valve is installed at the lowest position of the valve body to empty and drain the valve chamber, and an empty valve is installed at the upper part of the valve body to empty and clean the valve chamber online. Discharge valve and vent valve can be isolation valve or special discharge joint to ensure safety, reliability and convenient use.
8. Connecting discs that can be matched with various driving devices. The driving device includes a handle, a worm wheel, an electric, a pneumatic, a pneumatic-hydraulic and an electro-hydraulic linkage.
9. Easy adjustment of position. When the actuator is replaced or installed online, the position of the ball hole can not be seen clearly. BTL ball valve provides a special "positioning groove", which can find the position of the ball valve fully open and closed very easily and accurately. It is convenient to adjust the limit device of the actuator.
10. For valves with welded ends, the end material (transition section) of the valves can be adjusted according to the material grade response of the user pipeline to ensure the adaptability and weldability of the material strength. Valves with sleeves at both ends and the length of sleeves can ensure that on-site welding operation has no effect on sealing materials.
11. Buried design. The valve stem of buried installation is lengthened according to the needs of the project so as to be operated on the ground, and the corresponding grease injection, sewage discharge and emptying devices are extended from the pipe to the ground.
Design code
Design Standards: ISO14313/API 6D, GB/T 19672, GB/T 12237
Structure Length: ISO14313/API 6D, ASME B16.10, GB/T 12221
Flange Connection Standards: ASME B16.5, ASME B16.47, GB/T 9113, JB/T 79, HG/T 20592
Standards for butt welding connection: ASME B16.25, GB/T 12234
