D.S Industry Co., Ltd

BEST

Spiral Duct Fittings

Material
Hot-dip galvanized steel sheet(GI/CGI) Galvalume(G/L) Stainless steel(STS 304)

Product Features

Easy and fast installation (construction time and cost saving)
There is no risk of leakage since it is the gasket fixed type.
It is eco-friendly.

스파이럴 덕트 검수

Product Drawing IIllustration of Gasket when connecting ductI

Tightness & Sealing Class

This graph shows the leakage amount according to the pressure difference of EURO VENT 2.2 airtight class AD. The leakage amount ((l/s)/㎡) is associated with the pressure difference (Pa), and the leakage increases as the pressure difference inside and outside the duct increases.

The unit (l/s)/m2 indicates the amount of leakage inside and outside the system (l/s) per duct area (m2).
The airtightness level of our company’s duct system corresponds to the highest grade(Note: Class D, and Class D is three times better than Class C, and Class C is three times better than Class B)

Dimension Table

Diameter	Thickness of Sheet	Slip Length
øDn(mm)	T(mm)	L(mm)
75	0.5	36**
80	0.5	36**
100	0.5	36**
125	0.5	36**
150	0.5/0.6	36**
160	0.5/0.6	36**
175	0.5/0.6	36**
200	0.5/0.6	36**
225	0.5/0.6	36**
250	0.5/0.6	55**
275	0.5/0.6	55**
300	0.5/0.6/0.8	55**
325	0.5/0.6/0.8	60
350	0.5/0.6/0.8	60
375	0.5/0.6/0.8	60
400	0.5/0.6/0.8	80
425	0.5/0.6/0.8	80
450	0.5/0.6/0.8	80
475	0.5/0.6/0.8	80
500	0.5/0.6/0.8/1.0	80
550	0.6/0.8/1.0	80
600	0.6/0.8/1.0	80
650	0.6/0.8/1.0	80
700	0.6/0.8/1.0	80
750	0.6/0.8/1.0	100
800	0.8/1.0	100
850	0.8/1.0	100
900	0.8/1.0	100
950	0.8/1.0	100
1000	0.8/1.0/1.2	120
1050	1.0/1.2	120
1100	1.0/1.2	120
1150	1.0/1.2	120
1200	1.0/1.2	120
1250	1.0/1.2	120
1300	1.0/1.2	120
1350	1.0/1.2	120
1400	1.0/1.2	150
1450	1.0/1.2	150
1500	1.0/1.2	150
1600-2500	1.0~1.6

*øD : The outer diameter of the spiral duct. The tolerance is ±2%.
** Slip length of gasket type fittings.

Product Drawing

A	SP
SPIRAL DUCT

B	EB-90
90 ELBOW

C	EB-45
45 ELBOW

D	T
TEE	CAP TEE

E	CN-T
CONICAL TEE

F	CM-T
COMBINATION TEE

G	CR-T
CROSS TEE	CAP CROSS TEE

H	R-T
REDUCING TEE	REDUCING TEE(both-sided)

I	R-CN-T
REDUCING CONICAL TEE

J	R-CR-T
REDUCING CROSS TEE

K	YB
Y-BRANCH

L	R-YB
REDUCING Y-BRANCH

M	CR-YB
CROSS Y-BRANCH

N	R-CR-YB
REDUCING CROSS Y-BRANCH

O	YTB
Y-T BRANCH

P	R-YTB
REDUCING Y-T BRANCH

Q	CR-YTB
CROSS Y-T BRANCH

R	R-CR-YTB
REDUCING CROSS Y-T BRANCH

S	RD
REDUCER

T	TR
TRANSITION

U	TW-EB
TWIN ELBOW

V	CP
COUPLING

W	CAP
CAP

X	HG
HANGER

PRODUCT

Spiral Duct Fittings

Spiral Duct Fittings

Product Features

Product Drawing IIllustration of Gasket when connecting ductI

Tightness & Sealing Class

Dimension Table

Product Drawing