DAIKIN GAS TIGHT JOINT (DGT)

DGT is a non-brazed connection for Refrigerant piping. Pipes can be joined easily and quickly without brazing or using any special tools. It meets the stringent requirements in terms of safety and leak tightness while providing substantial benefits.

Catalogue

 

WHY BUY DGT?

 
  Daikin DGT Other Brands
FITTING ✓ Only need 1 Joint for Tight seal Requires additional accessories (i.e. inserts and joints) for stable fit
SPECIAL TOOLS ✓ N/A = $0 hidden costs Require specialised crimping tools costing from S$3,000 onwards
SEALING METHOD

✓ Double Protection with V-seal and Dual O-Ring to effectively minimise leakage.

✓ Ensures tight seal and prevents condensation forming internally

Single O-Ring only

-

Precision Piping Method (PPM) ✓ Enhanced productivity with prefabrication of piping into modular form for easy connection No such service
CERTIFICATION ✓ First to be Awarded 3 Ticks Excellent Rating by Singapore Green Building Council (SGBC) Certification Not Certified under SGBC
 

BENEFITS

 

EXCELLENT PERFORMANCE

By the unique double sealing method, the sealing performance is secured over a long period even under severe conditions such as pressure of 4.3MPa during temperature of – (minus) 45 degree C through + (plus) 130 degree C.

DURABLE FOR HIGH PRESSURE

By leverage method, the pull-out resistance is more than 4 times (17.2MPa) of the max. operating pressure.

EASY INSTALLATION

The installation is completed using low torque tightening method with just one or two turns of the nut. Regular wrenches or spanners are used without any special tools required, making installation easy even when operating space is limited.

FIRE FREE CONNECTION (SAFETY FIRST)

Neither nitrogen gas replacement nor fire prevention cure is required. The time for installation is shortened and the total cost is reduced. The installation quality is much more stable compared with a brazing method.

LESS LEAKAGE

With double sealing, made up of O-ring and V-seal, it prevents refrigerant from escaping. This eliminates the hassle of brazing at job site with labour intensive requirements.

REDUCE CONDENSATION CONCERNS

A combination of rubber packing and screwed metal body offers gas-tight and rigid connection without brazing.

 

MECHANISM

 

Sizes: ⌀6.4 - ⌀9.5

Sizes: ⌀12.7- ⌀34.9

Item Name Materials Remark
1 O-ring EPDM or NBR Prevent condensation from entering the joint
2 Nut C37700 High quality forged brass nut for tightening
3 Leverage corn SUS410 Corn shape grip on Copper pipe
4 Leverage ring PE-RT Support for Leverage corns (Item 3)
5 O-ring EPDM Secondary seal
6 V-seal IIR Primary seal (Main seal)
7 Main body C37700 High quality forged brass chassis
8 Indicator Luminous marking Fluorescent coating to ensure optimum tightness
9 C-shaped ring SUS304-WPB Tempering treatment
 

SPECIFICATION

 
  Daikin Gas Tight Joint (DGT)
Applicable Refrigerant R32, R410A, R407C, Other HFC refrigerant
Applicable Refrigerant Oil Ether oil, Esther oil, Polyol ester oil, Polyalkylene glycol oil
Maximum Pressure 4.3Mps
Minimum Pressure -755mmHg
Maximum Temperature 130oC
Minimum Temperature -45oC
Standard ISO14903

 

 

PRODUCT LINE UP

 

Standard Joints (connecting pipes of the same size)

Figure Model Name Dimension Weight/PC (g)
ND AF L
BDGTA06 ⌀6.4 19.0 46.2 106
BDGTA09 ⌀9.5 22.2 51.4 139
BDGTA12 ⌀12.7 23.8 82.3 170
BDGTA15 ⌀15.9 29.7 82.8 236
BDGTA19 ⌀19.1 35.0 85.5 327
BDGTA22 ⌀22.2 38.0 93.5 401
BDGTA28 ⌀28.6 45.0 99.5 546
BDGTA34 ⌀34.9 51.1 101.5 686
BDGTA41  NEW  ⌀41.3 58.3 103.5 881

 

Asymmetry Joints (connecting pipes of different sizes)

Figure Model Name Dimension Weight/PC (g)
ND AF1 AF2 L
BDGTA1209  NEW  ⌀12.7 – ⌀9.5 24.0 22.0 62.4 158
BDGTA1512  NEW  ⌀15.9 – ⌀12.7 29.7 23.8 83.2 220
BDGTA2219  NEW  ⌀22.2 – ⌀19.1 38.0 35.0 87.4 362
BDGTA2825  NEW  ⌀28.6 – ⌀25.4 45.0 41.8 94.4 510
 

Demonstration Videos

 
 

CERTIFICATION

 
 

Project References

 
Project Name Type
Yue Ywa Chinese Products

Commercial

HDB Sembawang Branch 

Commercial/ Office

Loyang Way

Industrial

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