The Double Block and Bleed Valve , Thread  X Thread 3 X Needle Valve stands out as a superior solution for critical applications, combining compactness, strength, and safety in a single, efficient design. By integrating double block and bleed functionality into one valve, it minimizes potential leak paths, reduces installation complexity, and ensures reliable isolation for personnel and equipment. Ideal for use in challenging environments where space and safety are paramount.

Double Block and Bleed Valve uses and principle and function

Selection Criteria for  Double Block and Bleed Valve , Thread  X Thread   3 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)