• Size Range from 1/2”through2”, large sizes on request
  • Different kinds of ends connections(RF/RTJ) Flanges, Butt weld, Clamp Connection, Socket Welding.
  • Pressure Range: from ASME Class 150 to ASME Class 2500

DBB Ball Valve

DBB ball valve made by Resta China is designed to replace the multiple valve connections in traditional pipelines. It reduce the leakage point in the system, save installation space and reduce the pressure of the pipeline system. So, this type valevs are widely used in power, petrochemical, metallurgical, marine, petroleum, natural gas, gas, pharmaceutical and other industries in the hydraulic system pipeline.

DBB Valve Basic Character:

DBB valve (Double Block and Bleed Valves) assure double isolation function thanks to two obturator inserted in a single body. It provide the bleed function by means of a bleed/vent system, which located between obturators(body port and ball, gate or needle valve).  DBB valves have several different constructions.

Double fixed balls hinged on supports, and floating metal or soft seats, central needle vent valve

Size Range from 1/2”through2”, large sizes on request

Pressure Range: from ASME Class 150 to ASME Class 2500

Temperature Range: from -46 to 450

Side Entry Forged Steel Valves

On request, Top-Entry design

Low pressure loss through the valve

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 wrench or motorized actuation(hydraulic, pneumatic, gas-over-oil or electric actuator)

Please contact us by email info@restavalve.com or leave message below