DAIKIN GAS TIGHT JOINT (DGT)

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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	130^oC
Minimum Temperature	-45^oC
Standard	ISO14903

PRODUCT LINE UP

Standard Joints (connecting pipes of the same size)

Figure	Model Name	Dimension			Weight/PC (g)
Figure	Model Name	ND	AF	L	Weight/PC (g)
	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)
Figure	Model Name	ND	AF1	AF2	L	Weight/PC (g)
	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