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Double Block & Bleed
Built to Isolate.
Three connection families — Flange-to-Pipe, Flange-to-Flange, and Pipe-to-Pipe — covering every instrument isolation application. SS316 construction, ANSI 150 to 2500 Class, with full NACE MR-0175 sour gas certification.
Flange-to-Pipe · Flange-to-Flange · Pipe-to-Pipe
Stainless Steel 316 construction
NACE MR-0175 Sour Gas Certified
ANSI 150 – 2500 Class · PN6 – PN250
RF · RTJ · BS Flange Faces
Ball · Needle · Combination internals
Integral & Three Piece construction
Fire Safe · Gear Operated · Lock Handle options
Flange-to-Pipe · Flange-to-Flange · Pipe-to-Pipe
Stainless Steel 316 construction
NACE MR-0175 Sour Gas Certified
ANSI 150 – 2500 Class · PN6 – PN250
RF · RTJ · BS Flange Faces
Ball · Needle · Combination internals
Integral & Three Piece construction
Fire Safe · Gear Operated · Lock Handle options
One body.
Three connection types.
PANAM® Double Block & Bleed valves cover the full instrument isolation spectrum — Flange-to-Pipe, Flange-to-Flange, and Pipe-to-Pipe configurations engineered for primary isolation, pressure transmitter mounting, and process bleed applications. All three families share the same SS316 construction with ball, needle, and combination internal configurations.
Every DBB family is available with NACE MR-0175 sour gas certification, fire-safe construction, lock handle, anti-static, gear-operated, and OS&Y bonnet options. Seat and seal materials cover Carbon Filled PTFE, PCTFE, Delrin, PEEK, PTFE, Grafoil, and FKM.
Technical Specifications
Connection Types
Flange-to-Pipe · Flange-to-Flange · Pipe-to-Pipe
Construction
Integral (One-Piece) · Three Piece (Serviceable)
Pressure Ratings
ANSI 150 – 2500 · PN6 – PN250 · Threaded
Flange Faces
RF · RTJ · BS
Material
Stainless Steel 316
Configurations
Ball-Needle-Ball · Ball-Ball-Ball · Needle-Needle-Needle · Ball-Needle
Seat Materials
Carbon Filled PTFE · PCTFE · Delrin · PEEK
Seal Materials
PTFE · Grafoil · PCTFE · FKM
Special Service
NACE MR-0175 · Fire Safe · Gear Operated
Three Families. One Standard.
Each DBB family is purpose-built for a specific connection type and application. Select by connection style, pressure class, or special service requirement.
DBB — Flange to Pipe
ANSI 150 – 2500 Class
Connection Types 1 & 3
Double Block & Bleed valves with Flange-to-Pipe construction for primary instrument isolation, pressure transmitter mounting, and process bleed applications. Available in Integral (one-piece body) and Three Piece (serviceable) configurations. ANSI 150 to 2500 Class, Ball-Needle-Ball, Ball-Ball-Ball, Needle-Needle-Needle, and Ball-Needle internals. Full NACE MR-0175 and fire-safe options.
SS316 · NACE / Fire Safe Options
DBB — Flange to Flange
ANSI 150 – 2500 · PN6 – PN250
Connection Types 2 & 4
Double Block & Bleed valves with Flange-to-Flange construction for inline isolation and DP transmitter applications. Available in Integral and Three Piece configurations. ANSI 150 to 2500 Class plus PN series, covering RF, RTJ, and BS flange faces. Full range of ball, needle, and combination internals with NACE MR-0175, fire-safe, and gear-operated options.
SS316 · RF / RTJ / BS · NACE Options
DBB — Pipe to Pipe
Threaded · NPT / BSPP / BSPT
Connection Type 6
Double Block & Bleed valves with threaded Pipe-to-Pipe construction for compact instrument isolation and process bleed. Available in NPT, BSPP, and BSPT thread forms across a full range of bore sizes. Ball-Needle-Ball, Ball-Ball-Ball, Needle-Needle-Needle, and Ball-Needle configurations. NACE MR-0175 sour gas and fire-safe options available.
SS316 · NACE / Fire Safe Options
Why specify PANAM® DBB Valves
All three DBB families are built to the same engineering standard — consistent materials, construction, and test procedures across the entire range.
Three connection families from a single trusted manufacturer
Stainless Steel 316 construction across all series
ANSI 150 to 2500 Class and PN6 to PN250 pressure ratings
RF, RTJ, and BS flange face options
NACE MR-0175 sour gas certification available
Ball-Needle-Ball, Ball-Ball-Ball, Needle-Needle-Needle, Ball-Needle configurations
Integral (one-piece) and Three Piece (serviceable) body options
Carbon Filled PTFE, PCTFE, Delrin, and PEEK seat materials
PTFE, Grafoil, PCTFE, and FKM seal materials
Fire Safe construction available
Gear Operated option for large bore sizes
Lock Handle, Anti-Static, OS&Y Bonnet, and Anti-Tamper Key options
Specify your DBB valve
Send us your connection type, pressure class, bore size, and any special service requirements. Our technical team responds to instrumentation enquiries within 24 hours.
