ALL CATEGORIES

Seller Center
- Product Management
  
  Post Product
  
  Manage Products
  
  Featured Products
- Blog Management
  
  Post Blog Article
  
  Manage Blog Articles
  
  Manage Blog Categories
- Inquiry Management
  
  My Inquiries
  
  Buying Requests
- Analytics Center
  
  Performance Dashboard
  
  Product Analytics
  
  Visitor Analytics
Connect Your Store to WeChat

Follow Our Official Service Account
Manage Products & Inquiries Anywhere
Seller Services

Seller Services

Goldsupplier.com: 20 years of Global Trade Expertise, Empowering Your Business to Go Global!

Join GoldSupplier.com

Free & Instant Registration

Showcase Company & Products

Access Global Buying Requests

Register Now

Activate Verified Supplier Membership

Priority Verified Visibility

Claim Exclusive Buying Requests

Automated Multi-language Store

Verified Now

Launch Your EasyOcean Website

Full-Service Website Management

Google Page 1 Guarantee

Enhanced Brand Credibility

Launch Now
Buyer Services
Post Buying Request

Browse Product Categories

Featured Suppliers
Contact Platform Support

Help Center

Home > Industrial Equipment & Components > Valve > Other Valves & Parts > Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options thumbnail-3

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options thumbnail-4

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options thumbnail-5

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options photo-1

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options photo-2

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options photo-3

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options photo-4

Manual Marine Threaded Ball Valve for Engine Room Piping, NPT BSP Thread Options photo-5

Product Spotlights

Durable manual ball valve designed for marine engine room piping. Features robust forged brass or stainless steel construction, PTFE seals for tight shut-off, and quarter-turn lever operation. Available in NPT or BSP threaded connections for global compatibility. Handles water, fuel, oil, and air lines with high pressure rating, ensuring reliable performance in demanding maritime environments.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

Get Latest Price

Material:

Forged Brass or Stainless Steel Body

Connection Type:

Threaded (NPT or BSP)

Port Size:

1/4 inch to 2 inches (customizable)

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
Contact Us

Material Forged Brass or Stainless Steel Body

Connection Type Threaded (NPT or BSP)

Port Size 1/4 inch to 2 inches (customizable)

Pressure Rating Standard working pressure up to 1000 PSI

Operating Temperature -20°C to 150°C (-4°F to 302°F)

Handle Type Manual Lever Handle

Seat Material PTFE (Teflon) for tight sealing

Application Engine room piping systems, marine fluid control

As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for the global maritime industry. Our Manual Marine Threaded Ball Valve is engineered specifically for the demanding environment of engine room piping systems. Designed for precise on/off control of water, fuel, oil, and air lines, this valve combines durability with ease of operation, ensuring system integrity and safety in critical marine applications.

The core value of this valve lies in its versatile thread options and rugged construction. Available in both NPT (National Pipe Taper) and BSP (British Standard Pipe) threaded connections, it offers seamless integration into diverse international piping standards. This flexibility, combined with our commitment to quality manufacturing since 2016, makes it a trusted component for shipbuilders, repair yards, and marine equipment suppliers worldwide.

Key Features and Technical Specifications:

Robust Construction: The valve body is typically forged from high-grade brass or stainless steel (AISI 304/316), providing excellent resistance to corrosion from saltwater, fuels, and lubricants commonly found in engine rooms.
Superior Sealing: Features a PTFE (Polytetrafluoroethylene) seat, known for its chemical inertness and low friction. This ensures a bubble-tight seal, minimal torque requirement for operation, and long service life even with frequent cycling.
Quarter-Turn Operation: A simple 90-degree turn of the lever handle provides full open or closed position, allowing for quick and easy flow control, which is crucial during emergency shutdowns or routine maintenance.
Bi-Directional Flow: The full-port or standard port design allows for flow in either direction without affecting performance or sealing, simplifying installation and system design.
High-Pressure Capability: Engineered to withstand the pressure demands of engine cooling systems, fuel delivery lines, and compressed air systems, with a standard working pressure rating suitable for most marine applications.
Temperature Resilience: The selected materials and seals perform reliably across a wide temperature range, from chilly bilge areas to the heat near engines.

Technical Specifications Table:

Attribute	Specification
Valve Type	Two-piece, Floating Ball, Threaded End
Thread Standards	NPT (National Pipe Taper) or BSP (British Standard Pipe)
Common Port Sizes	1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" (Other sizes available)
Pressure Rating (WOG)	Up to 1000 PSI (Water, Oil, Gas)
Body Material Options	Forged Brass, Stainless Steel 304, Stainless Steel 316
Ball & Stem Material	Chrome Plated Brass, Stainless Steel
Seat & Seal Material	PTFE (Teflon), Reinforced PTFE
Operating Temperature	-20°C to 150°C (-4°F to 302°F)
Handle	Manual Lever (Zinc Alloy or Stainless Steel)

Benefits for Your Operations:

Enhanced System Reliability: The robust build and tight seal minimize leaks and failures, reducing downtime and maintenance costs in critical engine room systems.
Global Compatibility: The choice between NPT and BSP threads simplifies procurement and installation for vessels and equipment built to different regional standards, serving our extensive markets from North America to Southeast Asia and Europe.
Easy Maintenance: The two-piece design allows for relatively easy disassembly for inspection or seal replacement without removing the entire valve from the pipeline.
Cost-Effective Solution: As a direct manufacturer, we offer a competitive balance of quality and price, providing reliable components that help manage overall project budgets.

Shanghai Zhibang's commitment to quality is backed by our ISO9001-certified manufacturing processes. With an annual export value reflecting consistent global trust, our products are shipped worldwide from major Chinese ports like Shanghai, Guangzhou, and Hong Kong. This manual marine ball valve embodies our expertise in serving diverse maritime sectors. Its proven design, material integrity, and configuration flexibility make it a dependable choice for ensuring fluid control safety and efficiency on board. We encourage shipowners, marine engineers, and distributors to contact us for detailed quotations, technical drawings, or to discuss custom requirements for your specific engine room piping needs.

Frequently Asked Questions (FAQ):

Q: What is the main difference between NPT and BSP thread options on this valve?
A: NPT (National Pipe Taper) threads are commonly used in North America and have a tapered design that seals through thread interference. BSP (British Standard Pipe) threads are standard in Europe, Asia, and many other regions; BSPP (parallel) requires a sealing washer/gasket, while BSPT (tapered) seals like NPT. It's crucial to specify which standard your existing piping uses to ensure a leak-free connection.
Q: Can this valve be used for fuel oil lines in the engine room?
A: Yes, when constructed with compatible materials like stainless steel 316 and PTFE seals, this valve is suitable for controlling the flow of diesel and other fuel oils. Always verify the chemical compatibility of the specific valve materials with the fluid in your application.
Q: Is the valve suitable for saltwater cooling systems?
A: Absolutely. Valves made from stainless steel 316 offer superior resistance to pitting and crevice corrosion caused by chlorides in saltwater, making them an excellent choice for seawater cooling, firefighting, and ballast lines.
Q: What is the typical lead time for an order?
A: Lead times vary based on order quantity, material choice, and thread specification. Standard configurations often have shorter lead times. Please contact us with your specific requirements for an accurate delivery schedule.
Q: Do you provide documentation or certifications with the valves?
A: As an ISO9001-certified manufacturer, we can provide standard material certificates and inspection reports. Specific marine classification society certifications (like ABS, DNV, etc.) may be available upon request and subject to additional testing and cost.
Q: How do I determine the correct size valve for my piping?
A: The valve size (e.g., 1/2", 1") should match the nominal pipe size (NPS) of your system. You need to know both the pipe size and the thread standard (NPT or BSP) used in your installation. Our technical team can assist you in selection if you provide these details.
Q: Is the lever handle lockable in the open or closed position?
A: The standard manual lever handle is not inherently lockable. However, padlockable handles or locking devices can often be fitted as an accessory or custom option to prevent unauthorized or accidental operation, which is a common safety requirement.
Q: What maintenance does this ball valve require?
A: These valves are designed for low maintenance. Periodic visual inspection for leaks and smooth operation is recommended. If used in abrasive media, the seats and seals may wear over time and can be replaced as part of a repair kit, often without removing the valve body from the line.