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NIPO
The integral double block and bleed (DBB) ball valve combines two isolation ball valves plus one bleed needle valve within a single forged‑body unit. This flanged‑to‑thread DBB valve is widely used for instrument sampling, pressure transmitter isolation and pipeline maintenance in oil & gas, petrochemical, chemical and energy industries.
Item | Specification |
|---|---|
Product Name | Integral DBB Double Block and Bleed Ball Valve |
Body Material | Stainless Steel (304 / 316 / 316L) |
Connection End | Flange × Female Thread |
Operation | Manual lever handle |
Structure | Double block with bleed port (DBB) |
Application | Instrument pipeline, sampling, pressure transmitter isolation |
Design Standard | ASME B16.34, ASME B16.5 (flange end) |
Test Standard | API 598 |
Body: SS304, SS316, SS316L
Ball & Stem: Stainless steel
Seat: PTFE / R‑PTFE
Handle: Carbon steel with blue coating
Oil & gas production
Petrochemical plant
Chemical processing industry
Power plant instrument system
Pipeline sampling system
Pressure transmitter & gauge isolation
