TB 85 Akron 4-Way Valve Flashcards

1
Q

What type of lugs on both inlets of the 4-Way Valve?

A

Winged lugs

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2
Q

What is the sturdy hand wheel connected to?

A

Diverter located inside main body

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3
Q

At what angle does the diverter direct the flow of water?

A

90 degree angle from the selected inlet to one of two outlets

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4
Q

Does pressure affect effort required to turn the hand wheel?

A

No

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5
Q

What type of threads are on 4” inlets and outlets?

A

NST threads

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6
Q

What is the weight of the 4-Way Valve?

A

35 lbs

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7
Q

What is the length (male to male)?

A

12-1/2”

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8
Q

What is the width (female to female)?

A

14”

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9
Q

What is the height?

A

13-1/2”

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10
Q

On a 2-1/2” single hydrant, the outlet is to be captured using what?

A

the 2-1/2” to 4” winged increaser

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11
Q

The proper female 4” inlet of the LDHV shall be utilized so that the supply line is pointing _________?

A

towards the engine’s direction of travel

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12
Q

On a 2-1/2” by 4” hydrant, which outlet is to be captured and why?

A

The 4” outlet to maximize water flow

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13
Q

On a Double 4” hydrant, which outlet is to be captured?

A

The outlet facing the fire

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14
Q

When possible, ____________ should be used for all connections?

A

4” supply hose and/or 4” soft suctions

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15
Q

What is the FL caused by the LDHV when flowing the following GPMs: 250, 500, 750, 1000, 1250, 1500, 1750, 1900?

A

0, 4, 4, 6, 7, 9, 10, 17 psi

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16
Q

What is an option when a single hydrant is obstructed?

A

Use a bypass between the hydrant and the LDHV

17
Q

Prior to delivery, each LDHV is hydrostatically tested to __________?

A

900 psi

18
Q

When does S&M conduct an inspection of the LDHV?

A

During the annual pump test

19
Q

What is the daily check for the LDHV?

A

Turn hand wheel in both directions and inspect for any damage on the valve body. This same check should be completed after each use.

20
Q

What is utilized for the sealing system between ports (inlets and outlets)?

A

Ultra high molecular weight plastic seats that seal the threads

21
Q

Does the LDHV need lubrication?

A

No

22
Q

What is maintenance for the LDHV?

A

Keep free of dirt/debris, handle tool in a manner that prevents abuse