DBB valve is a "single valve with two seating surfaces that, in the closed position, provides a seal against pressure from both ends of the valve, with a means of venting /beeding the cavity between the seating surfaces.
Structure: Single Body
Size: 1/2”~16” (15mm~400mm)
Connection Ends: Flange, Butt Weld, Socket Weld
Operator: Lever, Gear, Electric, Pneumatic etc.
Design: API 6D, ASME B16.34, API 608, BS EN ISO17292/ ISO14313
Pressure and Temp. Range: ASME B16.34
Inspection and Test: API598
Flange Ends: ASME B16.5
Butt Weld Ends: ASME B16.25,
Socket Weld Ends: ASME B16.11
Thread Ends: ASME B1.20.1
Fire Safe: API 607
Body Materials: A105 (N), LF2, F304, F316, F51, F55 etc.
Ball Materials: A105+ENP, F304, F304L, F316, F316L, F51, Inconel, etc.
Stem Material: 17-4PH, XM-19, F304, F316, F51 etc.
Seat Material: PTFE, RPTFE, DEVLON, NYLON, PEEK, etc.
Full Bore or Reduce Bore
Double Block & Bleed Design
Emergency Sealant Injection
Cavity Pressure Self Relief
Blow-out Proof Stem
Anti-fire Safe Design
Q1: Are you a manufacturer or distributor?
A1: We are a professional manufacturer. We design, manufacture, test and sell industry valves, including ball valves, gate valves, globe valves, check valves, butterfly valves, and so on.
Q2: What kind of certificates do you have?
A2: We have API 6D, API 600, API602, API 607, PED/ CE, ISO9001, ISO14001, ISO45001, ISO15848-1, EAC Certificates...
Q3: Can you accept OEM?
A3: If the customer authorizes us, we can OEM accordingly.
Q4: What about delivery way?
A4: We will choose the delivery way according to the package size, or as you required. Small parcel: by international express, like DHL, FedEx, UPS or TNT Courier. Big cargo: by air or by sea.