* UL : 19mm minimum bend radius, where C=120
Flexible Sprinkler drops (for export)

UNBRAIDED FLEXIBLE DROPS
- Stainless Steel 304
- Zinc-plated Steel (Nut & Nipple)
- EPDM Sealing Gasket
- Nylon Isolating Ring
- UL Listed & LPCB Approved
By essentially blocking pipe cutting and mid-pipe connections, you can save time and money efficiently.

1. | Tubular flexible tube | 3. | Nipple | 5. | Pressing ring |
---|---|---|---|---|---|
2. | Reduce | 4. | Slip nut | 6. | Gasket |
Manufacturable length | 700mm, 1000mm,1200mm, 1500mm, 1800mm |
---|---|
outlet | 1/2” or 3/4” |
Hose type | Unbraided |
hose | Stainless Steel 304 |
---|---|
Nuts & Nipples | Metal zinc plating |
Sealing Gasket / Isolation Ring |
EPDM / NYLON |
Maximum attention temperature | 225℉ |
---|---|
Maximum working pressure | 175 psig (UL/ULC) |
New sprinkler hose related reducer / nipple assembly Permissible torque: 300 kgf.cm |
Minimum bending radius | 190mm(UL/ULC) and 10”(FM) from connection nuts |
|
---|---|---|
Connector | ||
Inlet | 1”NPT or BSP | |
Outlet | 1/2” or 3/4”NPT or BSP |

Model | Rated Pressure, psig | Max. Ambient Temp, °F | Nom. Inlet by Outlet Size, in. | Assembly Length, ft (mm) | Max No. of 90° Bends | Min Bend Radius, mm. | Equivalent Length of 1 in. Schedule 40 Steel Pipe (C = 120), ft | Flexibility Type |
---|---|---|---|---|---|---|---|---|
DJ25UB-700 | 175 | 225 | 1x1/2 | 700 | 1 | 100 | 24 | Limited |
DJ25UB-1000 | 175 | 225 | 1x1/2 | 1000 | 2 | 100 | 44 | Limited |
DJ25UB-1200 | 175 | 225 | 1x1/2 | 1200 | 2 | 100 | 49 | Limited |
DJ25UB-1500 | 175 | 225 | 1x1/2 | 1500 | 2 | 100 | 59 | Limited |
DJ25UB-1800 | 175 | 225 | 1x1/2 | 1800 | 3 | 100 | 84 | Limited |
DJ25UB-700 | 175 | 225 | 1x3/4 | 700 | 1 | 100 | 30 | Limited |
DJ25UB-1000 | 175 | 225 | 1x3/4 | 1000 | 2 | 100 | 48 | Limited |
DJ25UB-1200 | 175 | 225 | 1x3/4 | 1200 | 2 | 100 | 55 | Limited |
DJ25UB-1500 | 175 | 225 | 1x3/4 | 1500 | 2 | 100 | 64 | Limited |
DJ25UB-1800 | 175 | 225 | 1x3/4 | 1800 | 3 | 100 | 86 | Limited |

- Table 1
- Summary of pressure loss & equivalent length for 700 mm flexible hose with one 90° bend and terminated in a ½” outlet reducer
Flow rate (l/min) |
Pressure upstream(bar) |
Pressure downstream(bar) |
Corrected pressure loss (bar) |
Eqivalent Length |
---|---|---|---|---|
40 | 0.31 | 0.20 | 0.005 | 0.40 |
60 | 0.75 | 0.49 | 0.077 | 3.00 |
80 | 1.43 | 0.93 | 0.199 | 4.56 |
100 | 2.22 | 1.44 | 0.321 | 4.89 |
120 | 3.22 | 2.08 | 0.483 | 5.23 |
150 | 5.01 | 3.23 | 0.751 | 5.38 |
Average equivalent length – 3.90
- Table 2
- Summary of pressure loss & equivalent length for1000 mm flexible hose with one 90° bend and terminated in a ½” outlet reducer
Flow rate (l/min) |
Pressure upstream(bar) |
Pressure downstream(bar) |
Corrected pressure loss (bar) |
Eqivalent Length |
---|---|---|---|---|
40 | 0.34 | 0.20 | 0.035 | 2.88 |
60 | 0.93 | 0.52 | 0.227 | 8.86 |
80 | 1.66 | 0.92 | 0.439 | 10.06 |
100 | 2.62 | 1.43 | 0.731 | 11.09 |
120 | 3.79 | 2.05 | 1.083 | 11.73 |
150 | 6.05 | 3.24 | 1.781 | 12.76 |
Average equivalent length – 9.56
- Table 3
- Summary of pressure loss & equivalent length for1200 mm flexible hose with one 90° bend and terminated in a ½” outlet reducer
Flow rate (l/min) |
Pressure upstream(bar) |
Pressure downstream(bar) |
Corrected pressure loss (bar) |
Eqivalent Length |
---|---|---|---|---|
40 | 0.36 | 0.20 | 0.055 | 4.53 |
60 | 0.97 | 0.52 | 0.267 | 10.42 |
80 | 1.73 | 0.92 | 0.509 | 11.67 |
100 | 2.75 | 1.43 | 0.861 | 13.06 |
120 | 4.02 | 2.07 | 1.293 | 14.00 |
150 | 6.32 | 3.21 | 2.081 | 14.91 |
Average equivalent length – 11.43
- Table 4
- Summary of pressure loss & equivalent length for1500 mm flexible hose with one 90° bend and terminated in a ½” outlet reducer
Flow rate (l/min) |
Pressure upstream(bar) |
Pressure downstream(bar) |
Corrected pressure loss (bar) |
Eqivalent Length |
---|---|---|---|---|
40 | 0.37 | 0.20 | 0.065 | 5.36 |
60 | 0.98 | 0.52 | 0.277 | 10.81 |
80 | 1.76 | 0.93 | 0.529 | 12.13 |
100 | 2.77 | 1.43 | 0.881 | 13.37 |
120 | 4.03 | 2.08 | 1.313 | 14.22 |
150 | 6.35 | 3.22 | 2.101 | 15.06 |
Average equivalent length – 11.82
- Table 5
- Summary of pressure loss & equivalent length for1800 mm flexible hose with one 90° bend and terminated in a ½” outlet reducer
Flow rate (l/min) |
Pressure upstream(bar) |
Pressure downstream(bar) |
Corrected pressure loss (bar) |
Eqivalent Length |
---|---|---|---|---|
40 | 0.40 | 0.19 | 0.105 | 8.66 |
60 | 1.05 | 0.51 | 0.357 | 13.93 |
80 | 1.93 | 0.92 | 0.709 | 16.25 |
100 | 3.05 | 1.44 | 1.151 | 17.46 |
120 | 4.38 | 2.05 | 1.673 | 18.12 |
150 | 7.04 | 3.25 | 2.761 | 19.79 |
Average equivalent length – 15.70
Part # | Description | Part # | Description |
---|---|---|---|
DJ25UB-700 | 1/2”x700mm Unbraided hose | DJ25UB-700 | 3/4”x700mm Unbraided hose |
DJ25UB-1000 | 1/2”x1000mm Unbraided hose | DJ25UB-1000 | 3/4”x1000mm Unbraided hose |
DJ25UB-1200 | 1/2”x1200mm Unbraided hose | DJ25UB-1200 | 3/4”x1200mm Unbraided hose |
DJ25UB-1500 | 1/2”x1500mm Unbraided hose | DJ25UB-1500 | 3/4”x1500mm Unbraided hose |
DJ25UB-1800 | 1/2”x1800mm Unbraided hose | DJ25UB-1800 | 3/4”x1800mm Unbraided hose |
* OD : 25.1mm / ID : 21.4mm STS 304
Underwriter’s Laboratories, Inc. (UL/ULC), cUL us 2443
Loss Prevention Certification Board (LPCB)
National Fire Protection Association (NFPA)
NFPA 13
Specification of new sprinkler piping and its accessories for firefighting service
NFPA 13D
Han / Two Family Residential Facilities and Manufacturing Plant Sprinkler System Installation Specification
NFPA 13R
4 or above residential building sprinkler system installation standard
NFPA 13 Section 9.2.1.3.3.3
Not more than 6 feet long without hangers Installation of flexible connection piping
American Society for Testing and Methods (ASTM)
ASTM C635
sound absorption tile rail panel ceiling metal suspension System-Related Manufacturing, Testing, and Specification
ASTM C636
Hinged Tile Rail Panel for Metal Suspension System Specification for installation of ceiling structure
International Building Code (IBC) Section 1621 / American Society of Civil Engineers (ASCE) 7.9.6.2.6.2 & 9.6.2.6.2.2

BRAIDED FLEXIBLE DROPS
- Stainless Steel 304
- Zinc-plated Steel (Nut & Nipple)
- EPDM Sealing Gasket
- Nylon Isolating Ring
- UL Listed & FM Approved
By essentially blocking pipe cutting and mid-pipe connections, you can save time and money efficiently.

1. | Tubular flexible tube | 4. | Slip nut | 7. | Braided Flexible Hose |
---|---|---|---|---|---|
2. | Reduce | 5. | Pressing ring | 8. | Clamp(ouside) |
3. | Nipple | 6. | Gasket | 9. | Clamp(inside) |
Manufacturable length | 24”, 36”, 48”, 60” and 72” |
---|---|
outlet | 1/2” or 3/4” |
Hose type | Braided |
hose | Stainless Steel 304 |
---|---|
Nuts & Nipples | Zinc-Plated Steel |
Sealing Gasket / Isolation Ring |
EPDM / NYLON |
Maximum attention temperature | 225℉ |
---|---|
Maximum working pressure | 175 psig |
Required torque to assemble reducer and nipple with the flexible hose : 300kgf.cm |
Minimum bending radius | 190mm(UL/ULC) and 10”(FM) from connection nuts |
|
---|---|---|
Connector | ||
Inlet | 1”NPT or BSP | |
Outlet | 1/2” or 3/4”NPT or BSP |

Model | Rated Pressure, psig | Max. Ambient Temp, °F | Nom. Inlet by Outlet Size, in. | Assembly Length, ft (mm) | Max No. of 90° Bends | Min Bend Radius, mm. | Equivalent Length of 1 in. Schedule 40 Steel Pipe (C = 120), ft | Flexibility Type |
---|---|---|---|---|---|---|---|---|
DJ25B | 175 | 225 | 1x1/2 | 2.0 (610) | 1 | 190 | 12 | Limited |
175 | 225 | 1x1/2 | 2.6 (790) | 1 | 190 | 19 | Limited | |
175 | 225 | 1x1/2 | 3.0 (915) | 2 | 190 | 42 | Limited | |
175 | 225 | 1x1/2 | 4.0 (1220) | 2 | 190 | 53 | Limited | |
175 | 225 | 1x1/2 | 5.0 (1525) | 3 | 190 | 68 | Limited | |
175 | 225 | 1x1/2 | 5.9 (1800) | 3 | 190 | 94 | Limited |
DJ25B | 175 | 225 | 1x3/4 | 2.6 (790) | 1 | 190 | 21 | Limited |
175 | 225 | 1x3/4 | 2.0 (610) | 1 | 190 | 27 | Limited | |
175 | 225 | 1x3/4 | 3.0 (915) | 2 | 190 | 47 | Limited | |
175 | 225 | 1x3/4 | 4.0 (1220) | 2 | 190 | 49 | Limited | |
175 | 225 | 1x3/4 | 5.0 (1525) | 3 | 190 | 73 | Limited | |
175 | 225 | 1x3/4 | 5.9 (1800) | 3 | 190 | 99 | Limited |
* UL : 19mm minimum bend radius, where C=120

Model | NPT in. | Hose Assembly length, ft (m) | Equivalent Length of 1 in. Schedule 40 Pipe, ft(m) |
---|---|---|---|
DJ25B | 3/4 | 2 (0.6) | 13.7 (4.1) |
3/4 | 2.6 (0.8) | 17.9 (5.4) | |
3/4 | 3 (0.9) | 22.2 (6.7) | |
3/4 | 4 (1.2) | 37.0 (11.2) | |
3/4 | 5 (1.5) | 45.5 (13.8) | |
3/4 | 6 (1.8) | 63.0 (19.2) |
DJ25B | 3/4 | 2 (0.6) | 10.5 (3.2) |
3/4 | 2.6 (0.8) | 14.4 (4.4) | |
3/4 | 3 (0.9) | 18.3 (5.6) | |
3/4 | 4 (1.2) | 32.8 (10.0) | |
3/4 | 5 (1.5) | 43.2 (13.1) | |
3/4 | 6 (1.8) | 58.7 (17.9) |
* FM : 10” minimum bend radius, where C=120
Part # | Description | Part # | Description |
---|---|---|---|
DJ25B-24 | 1/2”x24” Braided hose | DJ25B-24 | 3/4”x24” Braided hose |
DJ25B-36 | 1/2”x36” Braided hose | DJ25B-36 | 3/4”x36” Braided hose |
DJ25B-48 | 1/2”x48” Braided hose | DJ25B-48 | 3/4”x48” Braided hose |
DJ25B-60 | 1/2”x60” Braided hose | DJ25B-60 | 3/4”x60” Braided hose |
DJ25B-72 | 1/2”x72” Braided hose | DJ25B-72 | 3/4”x72” Braided hose |
* FM : 10” minimum bend radius, where C=120
Underwriter’s Laboratories, Inc. (UL/ULC), cUL us 2443
Loss Prevention Certification Board (LPCB)
National Fire Protection Association (NFPA)
NFPA 13
Specification of new sprinkler piping and its accessories for firefighting service
NFPA 13D
Han / Two Family Residential Facilities and Manufacturing Plant Sprinkler System Installation Specification
NFPA 13R
4 or above residential building sprinkler system installation standard
NFPA 13 Section 9.2.1.3.3.3
Not more than 6 feet long without hangers Installation of flexible connection piping
American Society for Testing and Methods (ASTM)
ASTM C635
sound absorption tile rail panel ceiling metal suspension System-Related Manufacturing, Testing, and Specification
ASTM C636
Hinged Tile Rail Panel for Metal Suspension System Specification for installation of ceiling structure
International Building Code (IBC) Section 1621 / American Society of Civil Engineers (ASCE) 7.9.6.2.6.2 & 9.6.2.6.2.2

BRAIDED FLEXIBLE DROPS
- Stainless Steel 304
- Zinc-plated Steel (Nut & Nipple)
- EPDM Sealing Gasket
- Nylon Isolating Ring
- UL Listed & FM Approved
By essentially blocking pipe cutting and mid-pipe connections, you can save time and money efficiently.

1. | Tubular flexible tube | 4. | Slip nut | 7. | Braided Flexible Hose |
---|---|---|---|---|---|
2. | Reduce | 5. | Pressing ring | 8. | Clamp(ouside) |
3. | Nipple | 6. | Gasket | 9. | Clamp(inside) |
Manufacturable length | 24”, 36”, 48”, 60” and 72” |
---|---|
outlet | 1/2” or 3/4” |
Hose type | Braided |
hose | Stainless Steel 304 |
---|---|
Nuts & Nipples | Zinc-Plated Steel |
Sealing Gasket / Isolation Ring |
EPDM / NYLON |
Maximum attention temperature | 225℉ |
---|---|
Maximum working pressure | 175 psig |
Required torque to assemble reducer and nipple with the flexible hose : 300kgf.cm |
Minimum bending radius | 9”(FM) from connection nuts |
|
---|---|---|
Connector | ||
Inlet | 1”NPT or BSP | |
Outlet | 1/2” or 3/4”NPT or BSP |

Model | NPT in |
k-Factor | Minimum Bend Radius in. (mm) |
Number of Bends |
Rated Working Pressure psi (kPa) |
Hose Assembly length in. (mm) |
Equivalent Length of 1 in. Schedule 40 Pipe, ft |
---|---|---|---|---|---|---|---|
DJ28B | 1/2 | 5.6 | 9 (230) | 1 | 175 (1205) | 2.3 ft | 22.9 (6.9) |
1/2 | 5.6 | 9 (230) | 2 | 175 (1205) | 3.3 ft | 34.6 (10.5) | |
1/2 | 5.6 | 9 (230) | 3 | 175 (1205) | 3.9 ft | 41.0 (12.5) | |
1/2 | 5.6 | 9 (230) | 4 | 175 (1205) | 4.9 ft | 50.4 (15.3) | |
1/2 | 5.6 | 9 (230) | 4 | 175 (1205) | 5.9 ft | 58.5 (17.8) |
DJ28B | 3/4 | 8.0 | 9 (230) | 1 | 175 (1205) | 2.3 ft | 15.7 (4.8) |
3/4 | 8.0 | 9 (230) | 2 | 175 (1205) | 3.3 ft | 26.9 (8.2) | |
3/4 | 8.0 | 9 (230) | 3 | 175 (1205) | 3.9 ft | 34.8 (10.6) | |
3/4 | 8.0 | 9 (230) | 4 | 175 (1205) | 4.9 ft | 43.8 (13.5) | |
3/4 | 8.0 | 9 (230) | 4 | 175 (1205) | 5.9 ft | 53.4 (16.2) |
* FM : 9” minimum bend radius, where C=120
Part # | Description | Part # | Description |
---|---|---|---|
DJ28B-700 | 1/2”x700 Braided hose | DJ28B-700 | 3/4”x700 Braided hose |
DJ28B-1000 | 1/2”x1000 Braided hose | DJ28B-1000 | 3/4”x1000 Braided hose |
DJ28B-1200 | 1/2”x1200 Braided hose | DJ28B-1200 | 3/4”x1200 Braided hose |
DJ28B-1500 | 1/2”x1500 Braided hose | DJ28B-1500 | 3/4”x1500 Braided hose |
DJ28B-1800 | 1/2”x1800 Braided hose | DJ28B-1800 | 3/4”x1800 Braided hose |
* OD : 28.0mm / ID : 27.4mm STS 304 1/2”x1800 Braided
Underwriter’s Laboratories, Inc. (UL/ULC), cUL us 2443
Loss Prevention Certification Board (LPCB)
National Fire Protection Association (NFPA)
NFPA 13
Specification of new sprinkler piping and its accessories for firefighting service
NFPA 13D
Han / Two Family Residential Facilities and Manufacturing Plant Sprinkler System Installation Specification
NFPA 13R
4 or above residential building sprinkler system installation standard
NFPA 13 Section 9.2.1.3.3.3
Not more than 6 feet long without hangers Installation of flexible connection piping
American Society for Testing and Methods (ASTM)
ASTM C635
sound absorption tile rail panel ceiling metal suspension System-Related Manufacturing, Testing, and Specification
ASTM C636
Hinged Tile Rail Panel for Metal Suspension System Specification for installation of ceiling structure
International Building Code (IBC) Section 1621 / American Society of Civil Engineers (ASCE) 7.9.6.2.6.2 & 9.6.2.6.2.2

BRAIDED FLEXIBLE DROPS
- Stainless Steel 304
- Zinc-plated Steel (Nut & Nipple)
- EPDM Sealing Gasket
- Nylon Isolating Ring
- UL Listed & FM Approved
By essentially blocking pipe cutting and mid-pipe connections, you can save time and money efficiently.

1. | Tubular flexible tube | 4. | Slip nut | 7. | Braided Flexible Hose |
---|---|---|---|---|---|
2. | Reduce | 5. | Pressing ring | 8. | Clamp(ouside) |
3. | Nipple | 6. | Gasket | 9. | Clamp(inside) |
Manufacturable length | 24”, 36”, 48”, 60” and 72” |
---|---|
outlet | 1/2” or 3/4” |
Hose type | Braided |
hose | Stainless Steel 304 |
---|---|
Nuts & Nipples | Zinc-Plated Steel |
Sealing Gasket / Isolation Ring |
EPDM / NYLON |
Maximum attention temperature | 225℉ |
---|---|
Maximum working pressure | 175 psig |
Required torque to assemble reducer and nipple with the flexible hose : 300kgf.cm |
Minimum bending radius | 8”(FM) from connection nuts |
|
---|---|---|
Connector | ||
Inlet | 1”NPT or BSP | |
Outlet | 1/2” or 3/4”NPT or BSP |

Model | NPT in |
k-Factor | Minimum Bend Radius in. (mm) |
Number of Bends |
Rated Working Pressure psi (kPa) |
Hose Assembly length in. (mm) |
Equivalent Length of 1 in. Schedule 40 Pipe, ft |
---|---|---|---|---|---|---|---|
DJ28B | 1/2 | 5.6 | 8 (203) | 1 | 175 (1205) | 24 (610) | 8.8 (2.2) |
1/2 | 5.6 | 8 (203) | 2 | 175 (1205) | 31.2 (792) | 14 (4.3) | |
1/2 | 5.6 | 8 (203) | 2 | 175 (1205) | 36 (915) | 17.5 (5.3) | |
1/2 | 5.6 | 8 (203) | 3 | 175 (1205) | 48 (1220) | 26.3 (8) | |
1/2 | 5.6 | 8 (203) | 4 | 175 (1205) | 60 (1525) | 31.4 (9.5) | |
1/2 | 5.6 | 8 (203) | 4 | 175 (1205) | 72 (1830) | 36.6 (11.1) |
* FM : 8” minimum bend radius, where C=120
Part # | Description | Part # | Description |
---|---|---|---|
DJ32B-C24 | 1/2”x24” Braided hose | DJ32B-C24 | 3/4”x700 Braided hose |
DJ32B-C36 | 1/2”x36” Braided hose | DJ32B-C36 | 3/4”x1000 Braided hose |
DJ32B-C48 | 1/2”x48” Braided hose | DJ32B-C48 | 3/4”x1200 Braided hose |
DJ32B-C60 | 1/2”x60” Braided hose | DJ32B-C60 | 3/4”x1500 Braided hose |
DJ32B-C724 | 1/2”x72” Braided hose | DJ32B-C72 | 3/4”x1800 Braided hose |
* OD : 32.0mm / ID : 26.1mm STS 304 1/2”x72” Braided hose
Underwriter’s Laboratories, Inc. (UL/ULC), cUL us 2443
Loss Prevention Certification Board (LPCB)
National Fire Protection Association (NFPA)
NFPA 13
Specification of new sprinkler piping and its accessories for firefighting service
NFPA 13D
Han / Two Family Residential Facilities and Manufacturing Plant Sprinkler System Installation Specification
NFPA 13R
4 or above residential building sprinkler system installation standard
NFPA 13 Section 9.2.1.3.3.3
Not more than 6 feet long without hangers Installation of flexible connection piping
American Society for Testing and Methods (ASTM)
ASTM C635
sound absorption tile rail panel ceiling metal suspension System-Related Manufacturing, Testing, and Specification
ASTM C636
Hinged Tile Rail Panel for Metal Suspension System Specification for installation of ceiling structure