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Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve

Suzhou Nai Lok Fluid Technology Co., Ltd.
  • Audited Supplier
  • 5 yrs

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Product Highlights

  • Double Block & Bleed Design: Ensures safe isolation and venting for critical applications in high-pressure environments.
  • Wide Material Selection: Available in Stainless Steel, Monel, Hastelloy, Inconel, and Super Duplex for corrosive media.
  • High Pressure Capability: Rated from ANSI Class 150 to Class 2500 for demanding industrial pipelines.
  • Fire-Safe Construction: Robust one-piece forged design ensures safety in high-temperature environments.
  • Flexible Customization: Offers full customization, minor customization, and design/sample-based options.
  • Versatile Connection Options: Features flanged inlet and FNPT threaded outlet for easy integration.
  • Corrosion Resistant: Superior resistance to acids, alkalis, chlorides, and seawater environments.
  • Fast Delivery: Peak and off-peak season lead time within 15 workdays.

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Product Images of Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve

Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve pictures & photos
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve pictures & photos
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve pictures & photos
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve pictures & photos
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve pictures & photos
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve pictures & photos
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
  • Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
  • Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
    Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
  • Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
    Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
  • Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
    Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
  • Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
    Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
  • Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
    Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
  • Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
    Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve

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Product Description

Product Description

Nai-Lok Dbb SBB Ball Valves Manufacturer F316 Body Double Block and Bleed Instrument Manifolds Class 2500 for Oil and Gas ASME B16.5 150LB DBB Ball Valves
Product Description

Ball valves are used to cut off or connect the medium in the pipeline, as well as to regulate and control the fluid. As a
professional manufacturer of customized valves, we can provide you with all kinds of floating and trunnion mounted ball valves.
Ball valves mainly feature compact structure and reliable sealing. The sealing surface and spherical surface are often closed,
which means it's not easy to be eroded by medium and easy to operate and maintain. NAI LOK is a professional ball valve supplier
and valve manufacturing company that has different types of ball valves for sale. We are good at making cast hand operated valve
and forged ball valve with various special alloys, which are suitable for general working media such as water, solvent, acid and
natural gas, as well as suitable for bad working.

Nickel valve applications: high concentration of alkali and reducing media
Monel applications: sulfite, phosphoric acid, thermal soda, high temperature halogen and reductive media
Hastelloy applications: hydrochloric acid, sulfuric acid, formic acid, phosphoric acid, organic acid, etc
NAI-LOK offers high-performance Double Block & Bleed (DBB) Ball Valves and Single Block & Bleed (SBB) Valves designed for critical isolation and venting applications in demanding industries. These valves ensure safe and efficient operation in high-pressure and corrosive environments.

Product Parameters

Flanged Inlet Connections ANSI B16.5 flanged, sizes 1/2" to 2", rated from Class 150 to Class 2500
Outlet Connection  1/2" to 1" FNPT threaded outlet (ANSI/ASME B1.20.1, depending on bore size)
Vent Connection  1/2" FNPT threaded (ANSI/ASME B1.20.1)
 Standard Material  Stainless steel ASTM A182 F316/F316L
Optional Materials Super Duplex, Monel, Hastelloy, Inconel
Flange Styles Raised face (RF) to ring-type joint (RTJ)
Robust Construction One-piece forged flange for superior strength
Fire-Safe Design Ensures safety in high-temperature environments

Material Options

Material Grade UNS Number (®) Key Characteristics & Typical Applications
Inconel® 625 UNS N06625 Excellent fatigue and thermal fatigue strength. Resists a wide range of severe corrosives. Ideal for seawater, aerospace, and chemical processing.
Monel® 400 UNS N04400 Superior resistance to seawater and steam at high temperatures. Excellent for marine and hydrocarbon applications.
Hastelloy® C22 UNS N06022 Outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. Handles oxidizing and reducing media.
Hastelloy® C276 UNS N10276 Versatile corrosion resistance to a broad range of chemical process contaminants, including chlorides.
Hastelloy® B2 UNS N10665 Excellent resistance to reducing environments, especially hydrochloric acid at all concentrations and temperatures.
Hastelloy® B3 UNS N10675 Improved thermal stability and corrosion resistance over B2, with excellent resistance to hydrochloric acid.
Alloy 254 SMO® 6Mo 6Moly UNS S31254 Extremely high resistance to pitting and crevice corrosion, ideal for seawater and chloride-containing solutions.
Super Duplex® 2507 UNS S32750 High strength and excellent resistance to stress corrosion cracking, pitting, and crevice corrosion.
Duplex® 2205 UNS S31803/S32205 Good strength and improved resistance to stress corrosion cracking compared to standard stainless steels.
Alloy 904L UNS N08904 High chromium, nickel, molybdenum content provides excellent resistance to sulfuric acid and other aggressive chemicals.

Application

Oil & Gas - High-pressure pipelines, wellhead controls, and instrumentation.
 Chemical & Petrochemical - Resistant to H2S, chlorides, and acidic media.solvent, and corrosive fluid handling
 Power Generation - Steam, cooling, and hydraulic systems.
 Pharmaceutical & Food Processing - High-purity fluid transfer (316 SS option).
 Marine & Offshore - Seawater-resistant (6Moly S31254) for harsh environments
Aerospace & Defense (High-integrity fluid systems)

.Why Choose This Compression Tube Fitting?

 Superior Leak Resistance - Double ferrule design prevents loosening under vibration.
 High Corrosion Resistance - 6Moly (S31254) & 316 SS for aggressive media.
 Easy Installation - No special tools required; hand-tighten plus 1-1/4 turns for a secure seal.

  • High Pressure Union Tee Fitting , 6Moly S31254 Instrumentation Fitting ,Double Ferrule Compression Fitting 6000psi

  • 1 Inch NPT Male Stainless Steel Tee , 12mm OD Tube Fitting for Instrument Gas Systems

  • Corrosion-Resistant High-Pressure Union Tee , Industrial Instrument Compression Tube Fittings

  • Alternative Compression Fitting

Detailed Photos


Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball ValveNai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball ValveNai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball ValveNai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
Nai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball ValveNai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball ValveNai Lok Dbb SBB Full Bore Ball Valve DN50 Flange 1500lb Rtj RF Face X Instrument Female NPT Alloy RF Double Block and Double Bleed Ball Valve
 

About the Supplier

This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI264759". Items marked "verified" are certified.

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Suzhou Nai Lok Fluid Technology Co., Ltd.
Suzhou Nai Lok Fluid Technology Co., Ltd.
Suzhou Nai Lok Fluid Technology Co., Ltd.
Suzhou Nai Lok Fluid Technology Co., Ltd.
Suzhou Nai Lok Fluid Technology Co., Ltd.
Suzhou Nai Lok Fluid Technology Co., Ltd.
Suzhou Nai Lok Fluid Technology Co., Ltd.
Suzhou Nai Lok Fluid Technology Co., Ltd.

About Our Factory & Business Background

verified Business Type
Manufacturer/Factory & Trading Company
Address
397 Damuqiao Road, Shaxi Town, Taicang City, Suzhou, Jiangsu, China
verified Terms of Payment
LC, T/T
verified International Commercial Terms(Incoterms)
FOB, CIF, CFR, EXW
Average Lead Time
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: one month
verified Nearest Port
Shanghai Port
verified Minimum Order Quantity
1 Piece

Our Production Capability & Technical Expertise

Main Products
Gas Delivery System, Ball Valve, Pressure Regulator, Alloy Valve, 2/3/5 Valve Manifold, Instrumentation Ball Valves, Sample Cylinder, Pipe & Tube Fittings, Needle Valve, Hose & Tubing
verified Inspection Type for Finished Products
100% inspection(Visual inspection & Function inspection)
verified Inspection Method for Finished Products
Have instructions and uniformly followed
verified Customization Options
Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
verified Traceability of Raw Materials
Yes

Our Industry Experience & Global Business Record

Main Markets
North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
verified Repeat Buyers Choice
50%~80%

Our Certifications, Standards & Industry Recognition

verified Management System Certification
ISO9001:2015, ISO14001

FAQ

What materials are available for this valve?
Standard material is Stainless Steel ASTM A182 F316/F316L. Optional materials include Super Duplex, Monel, Hastelloy, and Inconel.
What is the pressure rating range?
The valve is rated from ANSI Class 150 to Class 2500.
Can the valve be customized?
Yes, we offer flexible customization including minor, full, design-based, and sample-based customization options.
What are the connection types?
It features flanged inlet connections (ANSI B16.5) and FNPT threaded outlet connections.
What is the lead time for delivery?
The lead time is within 15 workdays for both peak and off-peak seasons.
Is the valve suitable for corrosive media?
Yes, it is designed for corrosive environments including acids, alkalis, and seawater using specialized alloys.
What payment terms are accepted?
We accept LC and T/T payment terms.
What is the warranty or quality inspection process?
We perform 100% inspection on finished products including visual and function checks.

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