A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Select the first letter of the word from the list above to jump to appropriate section of the Backwater Valves Glossary.

- A -

Access Cover

Removable cover, usually at floor level, which permits access to working parts of the valve.

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- B -

Ball Float Check Valve

A backwater valve for vertical installation at outlet of floor drain

Ball Float

Buoyant sealing element of valve which seals drain against backflow upon internal water level increase.

Body

Housing portion of valve which contains all working parts.

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- C -

Check Valve

A device installed in a drain line which prevents backflow without obstructing normal flow.

Combination Floor Drain

A floor drain incorporating an internal swing check or ball float valve to prevent backflow.

Combination Horizontal Backwater

A backwater valve for installation in a horizontal drain line incorporating an internal swing check valve and manual gate valve to prevent backflow.

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- D -

(empty)

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- E -

(empty)

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- F -

Flapper

See ROTATING DISC.

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- G -

Gland Plage (Gasketed)

Component of manual gate valve which supports all working parts.

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- H -

Hinge Arm

Component of swing check valve which supports rotating disc.

Horizontal Backwater Valve

A backwater valve for installation in a horizontal drain line incorporating an internal swing check valve to prevent backflow.

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- I -

(empty)

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- J -

(empty)

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- K -

(empty)

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- L -

(empty)

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- M -

(empty)

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- N -

Non-Rising Stem

Component of manual gate valve which supports shear gate and provides vertical adjustment of same.

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- O -

(empty)

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- P -

(empty)

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- Q -

(empty)

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- R -

Rotating Disc

Component of swing check valve supported by hinge arm which closes upon backflow and rotates to dislodge debris from seat.

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- S -

Seat

Fixed component of backwater valve which completes seal when mated with rotating disc, shear gate, or ball float.

Shear Gate

Manually controlled element of gate valve which seals against backflow and is spade-shaped to cut through debris in line upon closure.

Spade Gate

See SHEAR GATE

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- T -

Terminal Backwater Valve

A backwater valve for installation at the discharge end of a horizontal drain line incorporating a swing check valve to prevent backflow

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- U -

(empty)

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- V -

(empty)

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- W -

Wheel Handle

Removable component of manual gate valve through which valve is controlled.

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- X -

(empty)

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- Y -

(empty)

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- Z -

(empty)

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- # -

(empty)

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