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Naylor Clay Drainage > Naylor Clay Drainage Introduction > Flashcards

Naylor Clay Drainage Introduction Flashcards

1
Q

What are the two most widely used product ranges in the UK clay market?

A

Naylor Densleeve & Hepworth Supersleeve

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2
Q

Which manufacturer supplies Hepworth Supersleeve in the UK?

A

Wavin

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3
Q

Clay pipework is manufactured in accordance to which BS EN standard?

A

BS EN 295

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4
Q

What is the jetting pressure rating for clay pipes?

A

7500 PSI (510 bar)

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5
Q

True or false: Densleeve is the most popular clay drainage product.

A

False, Supersleeve is the most popular clay drainage product

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6
Q

True or false: Densleeve has the same OD as Supersleeve?

A

False, they have different OD and cannot be interchanged without the use of adaptors

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7
Q

Where is clay drainage likely to be used?

A

Commercial developments, schools, hospitals, prisons, estate roads to housing, contaminated grounds/landfill

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8
Q

Who is likely to use clay drainage products?

A

Civil engineers, groundworkers, drainage contractors, construction companies, earth moving contractors, local authorities, water companies

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9
Q

House builders will always use clay drainage products. True or false?

A

False, clay drainage is only occasionally used in house building

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10
Q

Name the 4 different sizes (DN) of Densleeve clay drainage.

A

DN100, DN150, DN225 & DN300

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11
Q

What couplings allow clay drainage to be used in contaminated ground?

A

Nitrile couplings make clay drainage safe in contaminated ground

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12
Q

What is the lifetime expectancy for clay drainage?

A

In excess of 100 years

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13
Q

Is clay drainage suitable for adoption?

A

Yes, clay pipework can be adopted

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14
Q

What connection method is used for clay drainage: Push Fit or Electrofusion?

A

Push Fit connections

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15
Q

What is the main benefit for push fit connections?

A

Quick installation, and allows for immediate testing and backfilling

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16
Q

Clay drainage has flexible joints. Why is this a benefit?

A

Accomdates for minor settlement and ground movement

17
Q

Can clay drainage be recycled?

A

Yes, pipework can be recycled and re-used in manufacture

18
Q

If clay drainage is being used as part of a roads and sewers package, what 3 main JDP products can you also quote for?

A

Flag & Kerb, Concrete Rings/Axedo, Manhole Covers

19
Q

Why does clay drainage have a long life expectancy?

A

Strength does not degrade over time, withstand high imposed loads, higher jetting pressure

20
Q

Why is it important to find out whether the customer requires Densleeve or Supersleeve?

A

Densleeve and Supersleeve have different OD, and aren’t interchangeable without adaptors

21
Q

Clay drainage can be used in commercial developments, such as office blocks or trading estates. True or false?

A

True, clay drainage is suitable for all types of commercial developments

22
Q

Clay drainage can also be used in specialist chemical resistant applications. What is the name of this clay pipe?

A

Naylor Hathernware

23
Q

McLocking McLock is the name of Naylor’s jacking clay pipe product range. True or false?

A

False, the name of Naylor’s jacking clay pipe is Denlock

24
Q

True or false: Wavin supply chemically resistant clay drainage pipe.

A

False, Naylor Hathernware can be used in chemical resistant applications

25
Q

Local authorities won’t adopt clay drainage pipe. True or false?

A

False, most local authorities prefer clay drainage especially in adoptable applications

26
Q

Densleeve clay has a jetting pressure rating of over 9000 PSI. True or false?

A

False, the pressure rating of Densleeve is 7500 (510 bar)

27
Q

Densleeve clay can withstand most loading situations with as dug backfill. True or false?

A

True, clay drainage pipe is rigid and does not distort under load

28
Q

What 3 main clay drainage fittings can JDP also provide other than clay pipe?

A

Bends, junctions, connectors and inspection chambers

29
Q

True or false: Densleeve is more brittle than Supersleeve, that’s why Supersleeve is more popular.

A

False, Densleeve is less brittle than Supersleeve, and is easier to cut and handle with much less breakages.

30
Q

What are the four add on products that make up a clay system?

A

Flexible couplers/ adaptorsPlastic adaptors to house drainagePPIC chambers (DYKA range with DC inlet or Axedo adaptors)Aggregates

31
Q

For more extreme operational conditions, Hathernware clay is available in which 2 options?

A

FCR (Fully Chemically Resistant)HT (High Temperature)

32
Q

True or false: clay is a new product for JDP and is difficult to sell to customers.

A

False, clay is a mature product and widespread product and used in many applications.

33
Q

Clay is a preferred method of drainage in certain applications. True or False?

A

True, particularly adoptable applications.

34
Q

Can JDP still supply everything groundworker customer needs without stocking clay?

A

No

Naylor Clay Drainage (1 decks)

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