Double Disc Gate Valves (DDGV) for Gas Isolation

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Key features:

Engineered for tar-laden and toxic gas isolation
Rising spindle & flexible wedge with an angular seat design
Metal to metal double sealing of hard faced, machined, ground and lapped seating surfaces for optimal isolation
Water can be filled between two discs to act as 100% man-safe isolation water seal
Steam purging arrangements for melting tar and drain ports for removing molten tar and other trapped materials in high pressure and large-size valves
Robust construction for demanding industrial applications
Customizable options to suit specific operating conditions

In Coke Oven Gas (COG) and Blast Furnace lines, standard wedge gate valves do not perform well because tar and particulate matter accumulate in the seating area, causing leakage. Even in worse scenario, temperature fluctuations often lead to thermal binding, jamming the valve closure.

Hubluxe Engineering’s Double Disc Gate Valves (DDGV) uses a parallel slide mechanism with a collapsible wedge (often called as Double Disc Parallel Gate Valve). This design ensures the discs self-align to the seat without wedging, while our Steam Purging System melts deposited tar before operation, guaranteeing a Class VI positive shut-off every time. The double disc gate valves are manufactured in accordance with API standards.

Double disc gate valves / Single disc gate valve technical specifications:

Product: ‘HUBLUXE’ Double disc gate valves / Single disc gate valve
Size: 400 mm to 3500 mm (Large diameter on request)
Type of disc: Double Disc gate valve / Single Disc Gate valve
Construction type: FABRICATED type
Shape: Round / Rectangular / Square
End connection: Flange ends
Body Material of construction (MOC): MS fabricated (IS 2062 GR. B) / SS 304 / SS 316 (other special materials on request)
Type of sealing: Metal to metal
Orientation: Vertical in Horizontal pipeline (default) / Horizontal in vertical pipeline (on request)
Maximum operating pressure: Upto 0.3 Mpa
Maximum operating temperature: upto 250 deg. C
Operation: Electrical actuator, Pneumatic actuator, Hydraulic actuator, Manual Bevel gear box
Brand / Make: Hubluxe

Double Disc Gate Valves approx dimensional table:

Size	Flange OD ØC	Face to Face F	Hole ØN/PCD	No. of Holes N	H1	H2	H3	H4	L1	L2	Approx Wt. in Kg
400	540	510	22/495	16	470	920	1480	3680	500	500	1080
600	755	510	26/705	20	520	970	1550	3735	500	500	1170
650	810	510	26/760	24	570	1020	1580	3865	525	525	1200
700	860	510	26/810	24	610	1115	1900	3935	550	550	1520
800	975	550	30/920	24	620	1165	1950	4377	600	600	1550
1000	1175	550	30/1120	28	780	1490	2475	5455	700	700	2250
1100	1290	590	33/1230	32	863	1640	2722	5878	770	770	3350
1200	1405	630	33/1340	32	880	1690	2875	6565	800	800	3650
1300	1520	670	36/1450	36	965	1830	3133	7063	865	865	4250
1400	1572	710	36/1560	36	1030	1972	3355	7450	935	935	4720
1500	1690	750	36/1660	40	1080	2112	3594	7935	950	950	5920
1600	1830	790	36/1760	40	1104	2090	3675	8350	1000	1000	7150
1800	2045	870	39/1970	44	1180	2450	4134	9089	1185	1185	9220
2000	2265	1185	42/2180	48	1292	2490	4475	9289	1200	1200	12300
2600	2905	1250	48/2810	60	1580	3215	5743	12663	1550	1550	16650

Double disc gate valves / single gate valve applications:

Oil & gas
Coke oven gas
Blast furnace
Steel & Mining

Thermal power plants
Sugar Mills
Food & Beverages
Pharmaceuticals

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FAQs (Frequently asked questions)

Find detailed answers to common questions about Double Disc Gate Valve in our Knowledge centre.

What is Double Disc Gate valve?

Double Disc Gate Valve is a low pressure valve for isolation. It comprises of double disc with other components such as body, bonnet, disc, stuffing boxes tem, superstructure and drive mechanism. A centrally placed collapsible wedge, connected to the valve stem through a specially designed flexible joint ensures a sealing force on the discs, preventing rubbing of seating surfaces and increasing the overall life of the seat.

What are the applications of Double Disc Gate valve?

The applications of Double Disc Gate valve is across various industries such as Petrochemical Industries, iron & Steel Mills, Thermal power plants, Marine Industries, Oil & gas industries, Cement Industries. The Common applications include: Coke oven gas lines, Blast furnace gas systems, Chemical processing plants, Power generation facilities

Who are the top double disc gate valve manufacturers in India?

The DDGV manufacturers are very few due to precision machining, lapping process and advanced material selections.

Hubluxe Engineering is a leading manufacturer of Double Disc Gate Valves, providing high-quality, industrial-grade solutions for reliable gas isolation in demanding environments.