Floating Ball DBB Valves

Alco floating pattern valves are designed for downstream use and feature two ball rings, which hold the ball in place under varying levels of pressure.

1 Piece design Flange x Screw

dbb-v-series-flange-x-screw-1-piece.jpg

V Series

Flange x Screw

Single flanged DBB valve Ball/Needle/Ball configuration

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1 Piece design

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dbb-bq-series-flange-x-screw-1-piece.jpg

BQ Series

Flange x Screw

Single flanged DB valve

Ball/Ball configuration

(no bleed valve)

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1 Piece design

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dbb-ob-series-flange-x-screw-1-piece.jpg

OB Series

Flange x Screw

Single flanged DBB valve
Ball/Bolted Needle/Ball configuration

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1 Piece design

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dbb-de-series-flange-x-screw-1-piece.jpg

DE Series

Flange x Screw

DBB valve Ball/Needle/Ball with Integral studding for lines with installation difficulties.

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1 Piece design

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dbb-y-series-flange-x-screw-1-piece.jpg

Y Series

Flange x Screw

Single flanged DBB valve, Ball/Ball/Ball configuration
 

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1 Piece design

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1 Piece design Flange x Flange

dbb-v-series-flange-x-flange-1-piece.jpg

V Series

Flange x Flange

Double flanged DBB valve Ball/Needle/Ball configuration

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1 Piece design

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dbb-bq-series-flange-x-flange-1-piece.jp

BQ Series

Flange x Flange

Double flanged DB valve

Ball/Ball configuration

(no bleed valve)

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1 Piece design

More
dbb-y-series-flange-x-flange-1-piece.jpg

Y Series

Flange x Flange

Double flanged DBB valve
Ball/Ball/Ball configuration

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1 Piece design

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3 Piece design Flange x Screw

dbb-v-series-flange-x-screw-3-piece.jpg

V Series

Flange x Screw

Single flanged DBB valve Ball/Needle/Ball configuration

​

3 Piece design

More
dbb-ob-series-flange-x-screw-3-piece.jpg

OB Series

Flange x Screw

Single flanged DBB valve

Ball/Bolted Needle/Ball

configuration

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3 Piece design

More
dbb-y-series-flange-x-screw-3-piece.jpg

Y Series

Flange x Screw

Single flanged DBB valve
Ball/Ball/Ball configuration

​

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3 Piece design

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3 Piece design Flange x Flange

dbb-v-series-flange-x-flange-3-piece.jpg

V Series

Flange x Flange

Double flanged DBB valve Ball/Needle/Ball configuration

​

3 Piece design

More
dbb-ob-series-flange-x-flange-3-piece.jp

OB Series

Flange x Flange

Double flanged DBB valve

Ball/Bolted Needle/Ball

configuration

​

3 Piece design

More
dbb-y-series-flange-x-flange-3-piece.jpg

Y Series

Flange x Flange

Double flanged DBB valve
Ball/Ball/Ball configuration

​

​

3 Piece design

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Compact DBB valve

ASME 16.10 face to face dimension

dbb-tb-twin-blok-ii-type.jpg

TB Twinblok II

Flange x Flange

Double flanged DBB valve Ball/Needle/Ball configuration

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ASME B16.10 face to face dimension

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2 Piece design

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