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2-PC ball valve, flanged DIN, direct mounting pad

2-PC ball valve, threaded, direct mounting pad

2-PC ball valve, threaded

3-PC ball valve, threaded, direct mounting pad

3-PC ball valve, threaded / socket weld

Natural gas ball valve, flanged

Pneumatic actuated ball valve

Pneumatic actuated 3-way control ball valve
Ball valves: buying guide and questions
How to choose a ball valve
- Body material
- Carbon steel (A216 WCB, A105) for water, steam and oil; stainless steel CF8/CF8M (SS304/SS316) for chemicals, food and corrosive water; cast or ductile iron for low-pressure water; brass for small domestic sizes.
- Pressure and temperature
- Check the pressure class (ANSI 150/300/600 or PN16/PN25/PN40) and the seat: PTFE/RPTFE up to about 200 °C, PEEK or metal seats for higher temperature and steam.
- End connection
- Threaded (BSP/NPT) or socket weld up to 2"; flanged (ASME B16.5 or EN 1092) for larger sizes and process plants.
- Bore
- Full bore for pigging and minimum pressure drop; reduced bore is lighter and cheaper.
- Operation
- Lever for small sizes, gear operator for large ones, ISO 5211 mounting pad for automation with an electric or pneumatic actuator.
- Certificates
- Fire-safe (API 607), anti-static, blow-out-proof stem and test certificates (EN 10204 3.1) on request.
What is the price of a ball valve in Bangladesh?
It depends on size, body material, pressure class, end connection and brand: a 1" threaded brass valve and a 6" flanged SS316 valve are very different. Send us the size, material, pressure class, connection and quantity and we reply with a quotation within 24 hours.
What is the difference between 2-piece and 3-piece ball valves?
A 3-piece valve has a centre body bolted between two end caps, so it can be serviced without cutting the pipe. A 2-piece valve is more compact and lower in cost but has to be removed for repair.
Which ball valve is best for steam?
Use a carbon steel or stainless steel valve with a seat rated for the steam temperature (RPTFE for low-pressure steam, PEEK or metal-seated for higher temperatures), preferably 3-piece for maintenance.
Can these ball valves be automated?
Yes. Valves with an ISO 5211 direct mounting pad accept an electric or pneumatic actuator without a bracket. Argonmark also supplies electric actuators.
Which brands do you supply?
Our listings cover KITZ, Velan, AVK, Crane and Audco; other makes can be sourced on request.