Media: | Water, Oil, Gas, etc |
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Material: | Carbon Steel |
Connection Form: | Flange |
Driving Mode: | Manual |
Nominal Pressure: | ANSI CLASS 150-900 |
Channel: | Straight Through Type |
Samples: |
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Customization: |
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2"-600LB DBB Double Block and Bleed Forged Steel BALL VALVE F304 Structure & Advantages
KATA DBB valves with several different constructions.
Size Range from 3" through 12", large sizes on request
Pressure Range: from ASME Class 150 to ASME Class 2500
Temperature Range: from -46 to 450
Low actuation torque
"CE" marking in compliance with PED Directive 97/23/EC
Full bore or Reduce bore
Different kinds of ends connections(RF/RTJ) Flanges, Butt weld, Clamp Connection, Socket Welding.
Wide availability of materials sepending on the specifications(carbon steel, stainless steel or Duplex steel for service in corrosive environments, Chrome-Molybdenum alloy steel for high temperature service, etc.)
Materials with anti-corrosion properties according to NACE MR 0175
On request, seat pocket area overlay, seal area overylay, or completed cladding on wetted surface(welded overlays in inconel 625, Stainless Steel 316 etc., or Electroless Nickel Plating)
Suitable for gear or motorized actuation(hydraulic, pneumatic, gas-over-oil or electric actuator)
2"-600LB DBB Double Block and Bleed Forged Steel BALL VALVE F304 Main Part & Materials
Part Names | Part Materials | ||||||
Body | WCB/A105 | LCB/LF2 | WC6/F22 | CF8/F304 | CF8M/F316 | CF3/F304L | CF3M/F316L |
Bonnet | WCB/A105 | LCB/LF2 | WC6/F22 | CF8/F304 | CF8M/F316 | CF3/F304L | CF3M/F316L |
Ball | A105+ENP | SS304 | F22 | SS304 | SS316 | SS304L | SS316L |
Stem | A105 | F304 | F6a | F304 | F316 | F304L | F316L |
Seat/Seat Ring | PTFE/RPTFE/NYLON/DEVLON/PEEK or METAL | ||||||
Packing | Graphite/PTFE | ||||||
Gasket | SS304+Graphite/SS304+Graphite | ||||||
Bolts/Nuts | B7/2H | L7/4 | B16/4 | B8/8 | B8M/8M | B8/8 | B8M/8M |
Suitable Medium | W.O.G etc. | HNO3, CH3OOH etc. | |||||
Suitable Temperature | -29~425 °C | -46~340 °C | -46~340 °C | -196~427 °C | -196~427 °C | -196~427 °C | -196~427 °C |
KATA Double block and bleed Ball Valves are designed, constructed and tested according to the most recent international standards, such as API, ASME, BS, DIN, etc. It requires two isolation in one line and a bleed function. It is applied to control the flow between the two 'ball valves' cavity in order to block the downstream pipeline in a safety way. The double block is playing the role of venting the pressure safety during maintenance by a valve stead of two bolted valves.
Design features:
-Ball - Floating Ball. Choice of bleed valve.
-Gate Type - Stelited Seats. Choice of bleed valve.
-Sealing options including additional graphite, O-rings and/or lip seals.
-Seating options including PTFE, PEEK and metal seated.
-Seating options including Devlon, Nylon, PTFE, PEEK, PCTFE and TCC metal seated.
9. R&D
1. Q: Are you a trader or manufacturer?
A: We are an industrial valve manufacturer since 1989. Our manufacturer scope covers ball valves, gate valves, globe valves, check valves, plug valves, butterfly valves, safety valves,bellows valve, needle valves & knife gate valves etc, and we also have good partners in Worm Gear, Electrical Actuator and Pneumatic Actuator,which mean we could offer one-stop valve solutions for you.
2. Q: What kind of certification do you have?
A: We have API 6D, API600, API602, API609, API 607&API 6FA, ISO9001, ISO14001, OHSAS18001, CE&PED, SIL,and ISO15848 certification.
3. Q: How long is your delivery time?
A: Generally it is about 45~60 days. For some urgent order, delivery can be made within 30days if there are raw material stock.
4. Q: Do you provide samples?
A: Yes, samples are available upon request.
5. Q: What about OEM products?
A: We accept OEM orders and put great value on keeping our customers satisfied by providing quality products with competitive prices and excellent service.
6. Q: Can you produce the products according to customer's special requirements and drawings?
A: Yes, customization can be made as per specific case.
7. Q: How long is your guarantee period?
A: Generally 12 months after installation or 18 months after shipment, whichever comes first.
Welcome to come to us at any time if you have any valve needs! We will respond to you within 0-24 hours.
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