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Home > Industrial Equipment & Components > Valve > Other Valves & Parts > Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation thumbnail-3

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation thumbnail-4

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation thumbnail-5

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation photo-1

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation photo-2

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation photo-3

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation photo-4

Manual Marine Threaded Ball Valve, NPT BSP, With Locking Handle for Secure Operation photo-5

Product Spotlights

Designed for secure marine and industrial use, this manual ball valve features a padlockable handle to prevent unauthorized operation. It offers dual NPT/BSP thread compatibility for global system integration. Constructed from corrosion-resistant materials like brass or stainless steel, it ensures reliable, bubble-tight shutoff and low-torque operation in demanding environments, backed by ISO9001 manufacturing standards.

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

Key Specifications

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Connection Type:

NPT / BSP Threaded

Operation Type:

Manual with Locking Handle

Body Material:

Brass or Stainless Steel

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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
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Connection Type NPT / BSP Threaded

Operation Type Manual with Locking Handle

Body Material Brass or Stainless Steel

Seat Material PTFE or Reinforced Nylon

Application Marine, Shipbuilding, Offshore

Pressure Rating PN16 / 150 PSI (Standard)

Temperature Range -20°C to 180°C

Port Size 1/4“ to 2“ (Customizable)

Design Standard ISO 5211 / API 608 (Optional)

Lock Type Integrated Padlockable Handle

As a specialized manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Manual Marine Threaded Ball Valve. Engineered for demanding maritime and industrial applications, this valve combines robust construction with a secure locking mechanism to ensure reliable flow control and prevent unauthorized operation. Since our establishment in 2016, we have focused on delivering high-performance fluid control solutions trusted by clients across North America, Southeast Asia, Europe, and beyond.

The core value of this valve lies in its secure operation and versatile compatibility. Designed with both NPT and BSP threaded ends, it offers exceptional adaptability for global piping systems. The integrated locking handle is a standout feature, providing a simple yet effective method to lock the valve in the open or closed position, which is crucial for safety protocols in marine environments, offshore platforms, and industrial plants.

Key Product Features & Technical Advantages:

Dual Thread Standard Design: Available in both NPT (American National Pipe Taper) and BSP (British Standard Pipe) threads, offering maximum compatibility and simplifying procurement for international fleets and projects.
Secure Locking Handle: The ergonomic lever handle features a built-in padlock hole. This allows for positive locking to prevent accidental or unauthorized valve actuation, enhancing onboard safety and compliance with operational procedures.
Robust Construction for Marine Use: Manufactured from premium materials like naval brass or 316 stainless steel, the valve body offers superior resistance to corrosion from saltwater, harsh chemicals, and atmospheric exposure.
Bubble-Tight Shutoff: Equipped with reinforced PTFE or nylon seats, the valve ensures a reliable, bubble-tight seal even after prolonged cycling, minimizing leakage and ensuring system integrity.
Low Torque Operation: The precision-machined ball and stem design ensures smooth 90-degree operation with minimal effort, reducing operator fatigue and allowing for quick open/close cycles.
Easy Maintenance: Features a standard ISO 5211 top flange design, allowing for easy in-line maintenance or replacement of internal components without removing the entire valve from the pipeline.

Detailed Technical Specifications:

Parameter	Specification
Valve Type	Two-piece, Full Port Threaded Ball Valve
Connection Standards	NPT (F/M), BSPP (G), BSPT (R) – Available upon request
Size Range	1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" (Other sizes customizable)
Pressure Rating	PN16 (Standard), Higher ratings (e.g., PN25) available
Temperature Range	-20°C to 180°C (with standard seats)
Body Material Options	Brass (CW617N), Stainless Steel 304/316, Duplex Steel
Seal Material Options	PTFE, Reinforced Nylon, Metal Seated (for high temp)
Handle Type	Locking Lever Handle (Standard), Locking T-Handle (Optional)
Fire Safe Design	Optional, compliant with API 607 / API 6FA standards

Benefits for Your Operations:

Enhanced Safety & Compliance: The locking mechanism helps meet safety regulations by preventing accidental operation, which is vital for fuel lines, ballast systems, and chemical transfer on vessels.
Global System Compatibility: The choice between NPT and BSP threads eliminates adapter needs, reducing installation time, potential leak points, and inventory complexity for multinational operations.
Durability & Long Service Life: Corrosion-resistant materials and quality construction ensure reliable performance in harsh marine environments, reducing maintenance frequency and total cost of ownership.
Versatile Application Scope: Suitable for a wide range of media including water, air, oil, fuel, and mild chemicals on ships, rigs, dockside facilities, and in related industrial plants.

With an annual export value ranging between US$1 Million and US$1.5 Million and a presence in markets from North America and Europe to Africa and Oceania, Shanghai Zhibang has proven its capability to deliver reliable valve solutions worldwide. Our ISO9001 certified manufacturing process guarantees consistent quality in every valve we produce. We ship efficiently from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to keep your projects on schedule. Choose our Manual Marine Threaded Ball Valve for a secure, durable, and globally compatible flow control solution backed by our commitment to quality and customer support. Contact us today for a detailed quotation or to discuss your specific requirements.

Frequently Asked Questions (FAQ)

Q: What is the main advantage of the locking handle on this ball valve?
A: The primary advantage is operational security. It allows the valve position (open/closed) to be physically locked with a padlock, preventing unauthorized or accidental operation. This is a critical safety feature for marine applications, fuel systems, and processes where valve status must be guaranteed.
Q: Can I get this valve with both NPT and BSP threads on the same unit?
A: Typically, valves are manufactured with the same thread type on both ends (e.g., NPT x NPT or BSP x BSP) for standardization. However, we can provide valves with different thread standards on each end (e.g., NPT male x BSP female) as a custom option upon request to suit specific connection needs.
Q: What material is recommended for seawater applications?
A: For prolonged exposure to seawater, we highly recommend 316 stainless steel or duplex stainless steel for the body and stem due to their superior pitting and crevice corrosion resistance. Naval brass (CW617N) is also a common and effective choice for many marine water services.
Q: Is this valve suitable for high-pressure applications?
A: The standard valve is rated for PN16 (approx. 150-232 PSI depending on size). For higher pressure requirements, we offer versions with reinforced design, thicker walls, and metal seats that can withstand pressures up to PN40 or higher. Please specify your pressure needs when inquiring.
Q: How does the locking mechanism work? Does it require special tools?
A: The mechanism is very simple. The lever handle has a hole through its base. When the valve is in the fully open or closed position, this hole aligns with a corresponding hole in the valve body or a fixed bracket. A standard padlock can then be inserted to lock the handle in place. No special tools are required.
Q: Do you offer fire-safe certified versions of this valve?
A: Yes, we offer fire-safe models as an optional feature. These valves are designed and tested to provide a seal even under fire conditions, meeting standards like API 607 or API 6FA. This is important for applications involving flammable fluids.
Q: What is the lead time for standard sizes and for custom orders?
A: For standard sizes (1/4" to 2") in common materials like brass or 304 SS, we typically have stock or a short lead time of 2-4 weeks. Custom orders (special sizes, materials, or pressure ratings) generally require 6-8 weeks for production. We provide accurate timelines upon order confirmation.
Q: What kind of packaging do you use for export to ensure the valves arrive undamaged?
A: We use robust export-grade packaging. Each valve is individually wrapped, placed in a plastic bag with desiccant, and then secured in a reinforced cardboard carton. For sea freight, palletized wooden crates are available upon request to ensure maximum protection during transit.