FAV Double Block and Bleed Valve , Thread  X Flange 2 X Ball Valve , 1 X Needle Valve have been specifically designed to provide a compact, rigid, lighter, safer and lower cost solution than conventional piping methods used for the installation of gauges, transmitters and other critical equipment. Where Positive Isolation is required to protect personal and equipment, DBB- Double Block and Bleed Valve are an excellent alternative to multi valve systems that are threaded or welded.

Double Block and Bleed Valve

Selection Criteria for  Double Block and Bleed Valve , Thread  X Flange  2 X Ball Valve , 1 X Needle Valve

– Connection Types:

  1. Flange to Pipe
  2. Flange to Flange
  3. Pipe to Pipe

– Configurations:

  1. Ball-Needle-Ball
  2. Ball-Ball-Ball
  3. Ball-Needle
  4. Needle-Needle-Needle

Materials of Construction

  1. SS 316
  2. Carbon Steel
  3. Duplex (31803, 32550, 32205)
  4. Super Duplex (32760, 32750)
  5. Inconel (625, 825)
  6. Hastelloy C276
  7. Monel 400
  8. 6Mo (SMO 254)
  9. Titanium Grade 2

Seal Materials

  1. PTFE
  2. Grafoil
  3. PCTFE
  4. FKM

Sizes and End Connections

– Pipe End:

– Sizes: 1/4″, 3/8″, 1/2″, 3/4″, 1″

– Threads: NPT, BSPP, BSPT (Male and Female)

– Flange End:

– Class: 150, 300, 600, 900, 1500, 2500

– PN: 6, 10, 16, 40, 64, 100, 160, 200, 250

– Face Types: Raised Face (RF), Ring Type Joint (RTJ)

FAV DDB