Dbb Ball Valve Double Block and Bleed Ball Valve

• Customization: Available
• Media: Oil
• Material: Stainless Steel
• Model NO.: DBB Ball valve
• Connection Form: Flange
• Driving Mode: Manual
• Nominal Pressure: ANSI CLASS 150-900
• Channel: Straight Through Type
• Structure: Fixed Ball Valve
• Type: Dbb Ball Valve
• Temperature: Normal Temperature
• Application: Industrial Usage, Water Industrial Usage
• Transport Package: Plywood
• Trademark: OEM
• Origin: China
• HS Code: 84818090
• Production Capacity: 270, 000/Year

Product Description

DBB ball valve are designed in order to replace the multiple valves connection complex forms in traditional pipeline. Reduce the leakage in system to achieve quickly bleed, close function. 

DBB ball valve maximum save installation space and simplified installation program. Cut down the pressure in piping system. Convenient instrument cleaning maintenance and reduce the costs.

The valves are widely used in electric power, petroleum chemical industry, metallurgy, marine, oil, natural gas, coal gas, pharmaceutical and other industries hydraulic system pipeline.

NO	Part Name	ASTM Material
		Carbon steel Alloy Steel Stainless Steel
1	Bonnet	ASTM A105	A352-LCB	A217+WC6	A351-CF8	A351-CF8M
2	Spring	INCONEL750	A313-304	A313-316	A313-316	A313-316
3	Seat	ASTM A105+ENP	A305-LF2+ENP	A182+F316	A182-F304	A182-F316
4	Seat ring	PTFE	PTFE	R.PTFE	Glass Filled PTFE
5	Stud	A193-B7	A320-L7	A193-B7	A193-B8	A193-B8
6	Connection plate	ASTM A105	A352-LCB	A217-WC6	A351-CF8	A351-CF8
7	Packing case	F4	F4
8	Greease injection valve	SS	SS
9	Stem	A182 F6a	A276-304	A276-316	A276-304	A276-316
10	Ball	ASTM A105+ENP	A182-F304	A182-F316	A182-F304	A182-F316
11	Body	ASTM A105	A352-LCB	A217-WC6	A351-CF8	A351-CF8M
12	Trunnion	A276-304		A276-316	A276-304	A276-316
13	Lower cover	ASTM A105	A352-LCB	A217-WC6	A351-CF8	A351-CF8M
* Note: The dimension of connecting flange can be design according to customer's requirements.

1. Double sealing o-ring to prevent the leakage at the stem.
2. Blow-out proof stem, it is internally inserted the body and function as the up-sealing seat.
3. Equipped with preloaded spring floating seat ring to be ensured seal even in low pressure.
4. Blow-out proof stem, it is internally inserted the body and function as the up-sealing seat.
5. Adopt double ball valve is to reduce the leakage in the system and to achieve quick-safely bleeding.
6. Equipped with preloaded spring floating seat ring to be ensured seal even in low pressure.

DBB Ball valve is made of two balls and two seats and one needle valve, bottom of body have drain valve.
Using Forging material , one piece, two piece, three piece structure.Both side is flange ends, one side is sw ends one side is flange ends. both side is RTJ ends.Can sampling, save install time and purchase cost .not easy to leaking.
 

Certifications

 

We are a company with 20 years of production and sales experience. 

We mainly provide safe and reliable  API ,JIS ,DIN Standard ball valve, gate valves, globe valves, check valves, fitting flange etc. for pipeline fluids. 
We are a company with 20 years of production and sales experience. We mainly provide safe and reliable API, JIS, DIN Standard ball valve, gate valves, globe valves, check valves, fitting flange etc. for pipeline fluids.

Have API6D, CE, ISO certificate.
Our group total have about 300 employees. It is a integrated high-tech enterprise which includes casting and production, export safety process service.

· Casting room: 8 casting line, 20,000 square. 2,000 Ton / Year
· Workshop: 40,000 square meters, 270,000 Valves / Year( Including The automatic production line for flange ball valves 5,000 square, 500 PCS / Day )
· Stock : 30 Millon RMB SS valve

Our main customers are distributors and wholesalers at all levels. The main materials are WCB, CF8, CF8M, CF3, CF3M, Duplex, Brass, cast iron, pressure from 150LB to 2,500LB. PN16 - PN160, 10K, 20K, Caliber 1/2″-40", connection method RF, RTJ, FF, BW, etc.Mainly we export to Brazil, Chile, Ecuador Vietnam, Turkey, Russian, Ukraine, Peru, Mexico, Romania, Czech Republic and other countries.

Company purpose: To provide reliable, efficient and flexible service, adhere to high quality, low price, fast delivery, professional quality control and good after-sales service attitude! Our goal is to become a reliable supplier of products in the petroleum industry.