Corrugated stainless steel flexline was first utilized
to protect from earthquake damage. In spite of vibrations, corrugated stainless steel flexline helps to prevent ruptures in the plumbing system. It can withstand wide fluctuations in temperature, and
due to its flexible nature, is extremely reliable and resistant to abusive environmental conditions.

 

Now, corrugated stainless steel flexline are used in an wide variety of industrial and residential plumbing applications world wide. EASYFLEX is the exclusive distributor of KOFULSO in Korea. KOFULSO Co., Ltd. is a world class manufacturer of corrugated stainless steel flexline using AISI 304 and AISI 316L stainless steel. It is a technological innovator in a wide variety of applications for water and gas distribution utilizing flexible fire sprinkler drops. A full line of UL Listed and FM approved flexible fire sprinkler drops are available.
EASYFLEX innovative features save time and money for you and your customers and is now favored worldwide by contractors and fire engineers. EASYFLEX sprinkler drops are the product of choice for those who used to install conventional rigid pipe sprinkler drops. The ease of installation and significantly reduced labor costs utilizing flexible sprinkler drops make EASYFLEX the smart choice.

 

 

 

 

 

 

 

 

 

1.Flexible Tube
2.Nipple(Inlet)
3.Nut
4.Reducing
5.Isolation Ring
6.Gasket
7.Snap Clamp
8.T-bar braket (TBL or TBS)
9.Stock Bar

 

No

Description

Qty

Braided

UnBraided

Material

Specifications

Material

Specifications

1

Flexible Tube
(Corrugated)

1

Stainless Steel
(Tube and Wire)

AISI316L
AISI304

Stainless Steel

AISI316L
AISI304

2

Nipple(Inlet)

1

Steel / Zinc Plate

STPG370

Steel / Zinc Plate

STPG370

3

Nut

2

Steel / Zinc Plate

S10C

Steel / Zinc Plate

S10C

4

Reducing(Outlet)

1

Steel / Zinc Plate

STPG370

Steel / Zinc Plate

STPG370

5

Isolation Ring

2

Plastic

Nylon 66

Plastic

Nylon 66

6

Gasket

2

Rubber

EPDM

Rubber

EPDM

7

Snap Clamp

1

Steel / Zinc Plate

 

Steel / Zinc Plate

 

8

T-bar bracket
(TBL OR TBS)

2

Steel / Zinc Plate

 

Steel / Zinc Plate

 

9

Stock Bar

1

GL Pipe / Zinc Plate

 

GL Pipe / Zinc Plate

 

 

 

 
  • Temperature Rating : Maximum temperature : 300°F (149°C)
  • Pressure :
    -Maximum Working Pressure : 200 psi/1375 kPa (by UL)
    -Test Pressure : 1000 psi / 6875 kPa (burst) (by UL)
  • Connection :
    -To Branch Line(Inlet) : 1" NPT male thread.
    -To Sprinkler Head(Outlet) : 1/2" or 3/4" NPT female thread.
  • Minimum bend radius : 8". Do not bend within
    21/2" from connection nut.
  • Maximum number of bends per flexible tube : 3

 

 

Fitting Type

Model No.

Length Inch/mm

Pieces / case

Inlet

Outlet

Unbraided

Braided

1"
NPT

1/2"
NPT

EFU224

EFB224

24.0 / 610

20

EFU231

EFB231

31.0 / 787

20

EFU236

EFB236

36.0 / 914

20

EFU248

EFB248

48.0 / 1219

20

EFU260

EFB260

60.0 / 1524

10

EFU275

EFB275

75.0 / 1905

10

3/4"
NPT

EFU324

EFB324

24.0 / 610

20

EFU331

EFB331

31.0 / 787

20

EFU336

EFB336

36.0 / 914

20

EFU348

EFB348

48.0 / 1219

20

EFU360

EFB360

60.0 / 1524

10

EFU375

EFB375

75.0 / 1905

10

※ Optional 80" and 102" lengths are available upon request.
※ Maximum Working Pressure : 200psi per UL and 175 psi per FM

1. Maximum number of bends per flexible drop: 3
2. Miniumum bend radius: 8"
3. Maximum Working Pressure: 200 psi (by UL)
4. Maximum Tested Pressure: 1,000 psi (by UL)
5. Each flexible drop is tested at the factory in water at 350 psi (by FM)