DuraVent DIS1 14 L36 BC Manuale di istruzioni - Pagina 9

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VARIABLE LENGTH (LV)

The Variable Length (LV) has one major function. It makes up odd lengths

of duct. It must not be used for expansion compensation.

It is shipped with a flanged retaining band assembly on the inner sliding wall.

The LV is adjustable from 7 1/2 to 28 inch. See Figure 16.

Half Outer

Retaining

Band Flow

Cuttable half siding

outer casing

Adjustable Flanged

retaining Band

Cuttable sliding

Inner Wall

Figure 16 – Variable Length (LV)

TEES

90° TEE (T90)

The 90° Tee is generally used to connect horizontal connectors into a vertical

section as well as a drain or inspection fittings.

NOTE: For the maximum height of chimney above a based supported Tee, see Table 4

in the SUPPORT METHODS AND HEIGHT LIMITS section.

Figure 17 – T90

TEE PRECAUTION

1. Use an adjustable length in all horizontal breechings or laterals.

2. If more than ¼" of thermal expansion is expected between the

tee and the next fixed support point;

a. The tee should be protected from bending moments by use of an Adjustable

Length (See the section on the Adjustable Length)

b. And the use of two axis support is recommended.

3. Provide access for easy removal of Tee Caps.

Gas Flow

UBMITTAL

ECORD FOR

M&G

45 TEE (T45) and DOUBLE 45 TEE (TD45)

See Figure 18 for the 45 Tee (T45) and Figure 19 for the Double Tee

(DT45)

Isolate these Tees from the effectives of Thermal Expansion.

Top Figure 18 T45 | Bottom | Figure 19 |Double Tee 45 (DT45)

LATERAL TEE (BT)

The Lateral Tee (BT) is a 45 Tee with a 45 Elbow integrated in it.

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DAS1,

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www.duravent.com

Figure 20 Lateral Tee (BT)

DIS1,

DIS2

DIS4

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