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Spiral Fittings, Inc. of South Carolina
 843-264-9038 (office)
 843-264-5438 (fax)

Reducers

Reducers are designed to accepted ASHRAE standards and give superior pressure drop characteristics.

All Reducers are precision-spun in one piece. The extra smooth galvanized steel with good drawing qualities gives added strength and prevents corrosion. There are not welds or protrusions to cause leaks, turbulence, or noise.

These sections are highly adaptable, not only as a straight reducer, but in branch take-offs, in tees, etc. Their use, since it eliminates costly hand fit-up and welding, results in a superior fitting in every respect at a greatly reduced cost.

Also, available in aluminum, stainless steel, and paint grip

The standard reducer is 7” long with a stop on the small end to serve as a bead to accept spiral pipes. The standard reducer is male (fitting) size both ends, with 2” slip on the small end, 4” in the taper, and 1” straight on the large end. Because of our method of spinning, most sizes can be produced with 3” straight on the large end so a bead can be installed when the reducer is shipped loose. We can also upon request extend the small end to 4” straight in the event a damper is to be installed. Either end or both ends can be made female (pipe) size when required.

Standard reducers can also be used as conical takeoff from rectangular duct by flanging the large end and using screws.

3/4” flange on the big end

Size

Size

Size

3-2

12-4

18-10

4-1

12-5

18-12

4-2

12-6

18-14

4-3

12-7

18-15

5-3

12-8

18-16

5-4

12-9

18-17

6-2

12-10

19-17

6-3

12-11

19-18

6-4

13-8

20-12

6-5

13-9

20-14

7-4

13-10

20-16

7-5

13-11

20-18

7-6

13-12

24-16

8-4

14-6

24-18

8-5

14-8

24-20

8-6

14-9

24-22

8-7

14-10

26-18

9-5

14-11

26-20

9-6

14-12

26-22

9-7

14-13

26-24

9-8

15-11

28-22

10-4

15-12

28-24

10-5

15-13

28-26

10-6

15-14

30-24

10-7

16-8

30-26

10-8

16-10

30-28

10-9

16-11

32-26

11-6

16-12

32-28

11-7

16-13

32-30

11-8

16-14

34-30

11-9

16-15

34-32

11-10

17-15

32-30

 

 17-16

36-34

 

 

 

 

                  Spiraling ahead with a new product line!