Swagelok Type Fnpt Threaded Mono Flange Double Block and Bleed Dbb Valve

As a professional valves manufacturer with strong soft and hard power, Liangyi Valve succeeded in achieving the certificates like ISO 9001, API 6D, CE, API 607 / 6FA etc. In 2019, our company was granted the reputation of national-level high tech enterprise. In 2021, the annual turnover is close to $150 million. With the rapid development, we have been upgrading the equipments. Now there are more than 100 sets of machines in the workshops. Among them, more than 20 sets are CNC machining centers and more than 30 sets are CNC lathes. Our supply range includes ball valves, gate valves, check valves, globe valves, DBB, butterfly valves, knife gate valves and other types of valves. With the advanced equipments and strong devotion to commitment, reliability and integrity, Liangyi Valve looks forward to business cooperation with customers from all over the world, for the mutual benefit.
 

DBB Standards:

1). DESIGN: EEMUA 182, ASME B16.34, Manufacturer's Std.

2). FLANGE CONNECTION: ASME B16.5,

3). FACE TO FACE : Manufacturer's Std

4). TEST: EEMUA 182, API 598

5). FIRE SAFE: BS 6755 part 2

DBB MATERIALS:

1). BODY MATERIAL: Carbon steel, Stainless steel, Alloy steel

2). TRIM: Carbon steel, Stainless steel, Alloy steel

3). PACKING: PTFE, PEEK, Graphite

DBB SPCIFICAITONS:

1). SIZE RANGE: 1/4" - 2"

2). PRESSURE RANGE: 150LB~2500LB

3). STRUCTURE: Needle / Ball

4). CONNECTION: RF, RTJ, NPT-F

5). MEDIUM: Water, Oil, Gas and Acidic Liquid

6). TEMPERATURE RANGE: PTFE -54 ºC ~232ºC(-65 ºF -450 ºF ), Graphite -54 ºC ~649ºC(-65 ºF -1200 ºF )

FAQ

Q: Is your company a manufacturer or trading company?

A: We are a real and professional valves manufacturer with our own facilities and lots of equipments, which enables us to be your reliable valves supplier.

Q: Which types of valves can you supply?

A: Our supply range includes ball valves, gate valves, check valves, globe valves, DBB, butterfly valves, knife gate valves and other types of valves. We can also help source the valves, flanges and fittings from our sub-suppliers.

Q: Does your company provide OEM / ODM service?

A: Yes, we do. We provided such service and customers are satisfied.

Q: What certificates does your company have?

A: We have API 6D, CE, API 607, API 6FA, ISO 9001 and other certificates.

Q: How much is the sales turnover in 2022?

A: The sales turnover is close to $ 15 million.

Q: How about your capacity?

A: We have over 100 sets of machines. More than 20 are CNC machining centers, more than 30 are CNC lathes.