GALLI & CASSINA Dual Seal DBB Plug Valve (API 6 D)

Design Features

The Dual Seal Double Block & Bleed valve is a soft seated ( 0 Leakage ) single valve that simultaneously blocks both the upstream and downstream flow while allowing the user to verify tightness using a manual or automatic body bleed system Also Available with “4 Ways Multiport Diverting” design.



Chemical & Petrochemical, Tank Storage



1. Standard Carbon Steel Body and Plug. (ASTM-A216 WCB/WCC material) suitable for general services.
2. Carbon Steel Body and Plug (A352 LCB/LCC material) suitable for low temperature services.
3. Carbon Steel Body and Plug (ASTM A216WCB/WCC material) suitable for “SOUR SERVICE” (H2S and CO2) according to NACE-MR.01.75/Latest Edition.
4 Special Austenitic (6MO) and Ferritic-Austenitic Stainless Steel (Duplex and Superduplex) suitable for sea water and corrosive services.
5. Other materials upon request.


Pressure and Temperature

-29 C° to 220 C° (-22 F° to 428 F°)



DN 2” up to 36” Class 150 – 300. , DN 2” up to 24” Class 600. , DN 2” up to 10” Class 900 – 1500.



ASME/ANSI 150 up to Class 1500 Lb

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