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Home > Industrial Equipment & Components > Valve > Check Valve > Heavy-Duty Sea Water Strainer for Ship Engine Room and Ballast System, BR Type, DN250

Heavy-Duty Sea Water Strainer for Ship Engine Room and Ballast System, BR Type, DN250

Heavy-Duty Sea Water Strainer for Ship Engine Room and Ballast System, BR Type, DN250 thumbnail-3

Heavy-Duty Sea Water Strainer for Ship Engine Room and Ballast System, BR Type, DN250 thumbnail-4

Heavy-Duty Sea Water Strainer for Ship Engine Room and Ballast System, BR Type, DN250 thumbnail-5

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Heavy-Duty Sea Water Strainer for Ship Engine Room and Ballast System, BR Type, DN250 photo-5

Product Spotlights

Protect critical shipboard machinery with our BR Type DN250 Heavy-Duty Sea Water Strainer. Engineered for engine room and ballast systems, it features robust construction, high dirt-holding capacity, and easy maintenance. Effectively removes debris to prevent clogging and equipment wear, ensuring operational reliability and reducing maintenance costs. Customizable materials and flanges available. ISO9001 certified manufacturer with global export experience.

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

Key Specifications

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Application:

Other, Ship Engine Room and Ballast System

Type:

BR Type Heavy-Duty Sea Water Strainer

Nominal Diameter:

DN250

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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
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Application Other, Ship Engine Room and Ballast System

Type BR Type Heavy-Duty Sea Water Strainer

Nominal Diameter DN250

Construction Heavy-Duty, Corrosion-Resistant

Filtration Grade Coarse Particle Removal

Connection Standard Flanged Connection

Operation Manual or Optional Automated

Body Material Cast Iron, Ductile Iron, or Cast Steel

Strainer Basket Material Perforated Stainless Steel

Design Standard Marine Industry Specifications

As a dedicated manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co.,ltd specializes in providing robust and reliable fluid control solutions for the global marine industry. Our BR Type DN250 Heavy-Duty Sea Water Strainer is engineered specifically for the demanding environments of ship engine rooms and ballast systems. This product represents our commitment to protecting critical shipboard machinery from damaging debris, ensuring operational continuity, reducing maintenance costs, and enhancing the overall safety and efficiency of marine vessels. With extensive experience supplying to markets across North America, Europe, Asia, and beyond, we understand the stringent requirements of maritime applications.

This heavy-duty strainer is a cornerstone of effective seawater filtration. Its primary function is to remove coarse particles, shells, seaweed, and other solid contaminants from seawater before it enters sensitive pumps, heat exchangers, condensers, and other engine room auxiliaries or ballast system components. By preventing clogging and abrasive wear, it significantly extends equipment lifespan and minimizes unscheduled downtime.

Key Features & Technical Advantages:

Rugged BR Type Design: The BR type signifies a robust, basket-type strainer configuration known for its high dirt-holding capacity and ease of maintenance. The design is optimized for high-flow, high-pressure marine water services.
Heavy-Duty Construction: Built to withstand the corrosive seawater environment and potential hydraulic shocks. The main body is typically constructed from durable materials like cast iron, ductile iron, or cast steel, with internal components often made from corrosion-resistant stainless steel.
DN250 Nominal Diameter: The DN250 (approximately 10-inch) size makes this strainer suitable for main seawater lines, handling substantial flow rates required for large engine cooling systems and ballast operations.
Efficient Filtration: The perforated stainless steel basket provides effective straining. The basket hole size can be customized (e.g., 3mm, 5mm, 8mm) based on the required protection level for downstream equipment.
Low Pressure Drop: The streamlined flow path and ample basket surface area are designed to minimize pressure loss across the strainer, ensuring efficient system performance without overburdening pumps.
Easy Maintenance: The design allows for quick basket inspection and cleaning without requiring the removal of the strainer body from the pipeline. A blow-down or drain connection is typically provided for flushing.
Versatile Mounting: Standard flanged connections (e.g., ANSI, JIS, DIN standards available upon request) ensure easy integration into existing ship piping systems.
Optional Monitoring: Differential pressure gauges or switches can be fitted to provide visual or alarm-based indication when the basket needs cleaning, enabling predictive maintenance.

Technical Specifications Table:

Parameter	Specification
Model / Type	BR Type, Heavy-Duty Basket Strainer
Nominal Size	DN250 (10")
Design Pressure	Typically PN10/PN16/Class 150 (Customizable)
Connection Type	Flanged (Standard as per order)
Body Material	Cast Iron, Ductile Iron, Cast Steel (Selectable)
Strainer Basket Material	304 or 316 Stainless Steel (Perforated)
Basket Hole Size	Standard 3-8mm (Customizable)
Seat / Seal Material	EPDM, NBR, or Viton (Optional)
Primary Application	Sea Water Filtration for Engine Room & Ballast Systems
Operation	Manual (Standard), Automated with DP Alarm (Optional)

Benefits for Ship Owners and Operators:

Asset Protection: Shields expensive pumps, coolers, and valves from particulate damage, leading to major cost savings on repairs and replacements.
Operational Reliability: Reduces the risk of sudden system failures caused by clogged intake screens or strainers, ensuring smoother voyages.
Reduced Maintenance Burden: The easy-clean design lowers labor time and costs for routine strainer servicing.
Compliance & Safety: Helps maintain clean seawater systems, which is crucial for the efficient and safe operation of ballast systems and engine cooling, indirectly supporting environmental and safety regulations.
Long Service Life: The use of corrosion-resistant materials ensures the strainer itself endures the harsh marine environment for years.

Backed by our ISO9001 certification and nearly a decade of manufacturing expertise since 2016, Shanghai Zhibang Valve delivers products that meet rigorous quality standards. Our annual export value of US$1-1.5 Million and presence in major global markets including North America, South America, Europe, Asia, Africa, and Oceania attest to the trust we have built with international clients. We support this with efficient logistics from key ports like Shanghai, Guangzhou, Hong Kong, and Beijing. Choosing our BR Type DN250 Sea Water Strainer means investing in a proven, durable component that safeguards your vessel's vital systems. Contact us today to discuss your specific requirements, request detailed drawings, or place an order for reliable marine filtration.

Frequently Asked Questions (FAQ):

Q: What is the main purpose of this sea water strainer on a ship?
A: Its primary purpose is to filter coarse solids from seawater before it enters the engine room cooling systems (for main and auxiliary engines, generators) and ballast water systems. This prevents blockages, abrasion, and damage to pumps, heat exchangers, and valves.
Q: Can this DN250 strainer handle the flow rate for a large vessel's main seawater cooling loop?
A: Yes, the DN250 size is designed for main line applications and can handle high flow rates. The specific flow capacity depends on the design pressure and basket hole size; our engineering team can provide performance curves based on your system parameters.
Q: What materials are recommended for the strainer body in seawater service?
A: For seawater, we typically recommend ductile iron with suitable internal coatings or, for higher corrosion resistance, cast steel. Stainless steel bodies are also available upon request. The basket is always made from stainless steel (304 or 316).
Q: How often does the strainer basket need to be cleaned?
A: Cleaning frequency depends entirely on the water quality and particulate load at the intake. In heavily silted or debris-filled waters, cleaning may be needed daily. In cleaner open seas, it could be weekly or monthly. Installing an optional differential pressure gauge provides the best indication.
Q: Is the strainer suitable for both engine room and ballast system use?
A: Absolutely. The robust BR type design is versatile. While the core function is filtration, it can be installed on any seawater line requiring coarse particle removal. Specific material selections might be adjusted based on the exact service (e.g., ballast hold times).
Q: Do you provide certifications or test reports for the strainer?
A: As an ISO9001 certified manufacturer, we maintain strict quality control. Standard material certificates (MTC) are provided. Additional testing like hydrostatic tests or third-party inspection reports are available upon request.
Q: What flange standards do you offer?
A: We can manufacture flanges to common international standards such as ANSI, JIS, DIN, GB, etc. Please specify your required standard and pressure class (e.g., ANSI 150#) when inquiring.
Q: What is the lead time for an order of this DN250 strainer?
A: For standard configurations, lead time is typically 15-30 days. Customized requirements (special materials, flange standards, accessories) may require additional time. We provide accurate timelines upon receipt of your detailed specifications.