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Primary Instrument Isolation

Double Block & Bleed Valves

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

ANSI 150 – 2500 Class · PN6 – PN250

NACE MR-0175 Sour Gas Certified

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

ANSI 150 – 2500 Class · PN6 – PN250

NACE MR-0175 Sour Gas Certified

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 · 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


Connection Types 1 & 3DBB — Flange to Pipe

Double Block & Bleed valves with Flange-to-Pipe construction for primary instrument isolation, pressure transmitter mounting, and process bleed applications. Available in Integral and Three Piece configurations across ANSI 150 to 2500 Class with RF, RTJ, and BS flange faces.

Integral & Three Piece body options

ANSI 150 – 2500 Class · PN6 – PN250

RF · RTJ · BS Flange Faces

Ball-Needle-Ball · Ball-Ball-Ball · Needle · Ball-Needle

NACE MR-0175 · Fire Safe · Gear Operated

Browse Flange to Pipe
DBB Flange to Pipe

DBB Flange to Flange
Connection Types 2 & 4DBB — Flange to Flange

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 full PN series, covering RF, RTJ, and BS flange faces.

Integral & Three Piece body options

ANSI 150 – 2500 · PN6 – PN250

RF · RTJ · BS Flange Faces

Ball-Needle-Ball · Ball-Ball-Ball · Needle · Ball-Needle

NACE MR-0175 · Fire Safe · Gear Operated

Browse Flange to Flange

Connection Type 6DBB — Pipe to Pipe

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. The most compact DBB configuration for space-critical installations.

Threaded body — NPT · BSPP · BSPT

Compact design for space-critical installations

Ball-Needle-Ball · Ball-Ball-Ball · Needle · Ball-Needle

1/4" to 1" thread sizes

NACE MR-0175 · Fire Safe options

Browse Pipe to Pipe
DBB Pipe to Pipe

DBB Valve Applications

PANAM DBB valves are specified across the full range of process and instrumentation industries wherever safe, reliable isolation and bleed capability is required.

Oil & Gas Production & Processing

Chemical & Petrochemical Plants

Offshore & Subsea Installations

Power Generation

Pressure Transmitter Mounting

LNG & Gas Distribution

Refinery Process Lines

Pipeline Instrumentation

Water & Wastewater Treatment

Pharmaceutical Process Lines

Heat Exchangers & Reactors

Hydraulic & Pneumatic Systems


Specify your DBB valve

Need a specific pressure class, connection type, or special service certification? Our technical team responds to instrumentation enquiries within 24 hours.

Contact Technical Team