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Home > Industrial Equipment & Components > Valve > Other Valves & Parts > DN50 Overboard Boiler Discharge Valve With Flange Connection - CB/T3841-1999 Compliant

DN50 Overboard Boiler Discharge Valve With Flange Connection - CB/T3841-1999 Compliant

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Product Spotlights

Marine-certified CB/T3841-1999 compliance ensures seaworthiness. Flange connection guarantees leak-free boiler discharge. Corrosion-resistant materials extend service life in saltwater environments. Manual lever operation provides immediate emergency response. ISO9001 manufacturing with global export experience delivers proven reliability.

Negotiable MOQ: 20 Units (Price negotiable depending on order volume and customization)

Key Specifications

Get Latest Price

Nominal Diameter:

DN50

Connection Type:

Flange

Compliance Standard:

CB/T3841-1999

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

shanghai

Delivery Detail:

7 days

Product Details
Company Profile
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Nominal Diameter DN50

Connection Type Flange

Compliance Standard CB/T3841-1999

Material Cast Iron/Ductile Iron

Pressure Rating PN10-PN16

Operation Manual Lever

Application Marine Boiler Systems

Certification ISO9001

Brand Shanghai Zhibang

Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 as an ISO9001-certified manufacturer, specializes in marine-grade valves trusted across global markets. Our DN50 Overboard Boiler Discharge Valve delivers critical reliability for marine boiler systems, engineered to prevent backflow and ensure operational safety. With over $1 million in annual exports to five continents, we've refined designs that withstand harsh marine environments while maintaining strict compliance with CB/T3841-1999 standards.

Core Technical Specifications:

Parameter	Value
Design Standard	CB/T3841-1999 (Marine Standard)
Pressure Rating	PN10-PN16
Temperature Range	-29°C to 300°C
Flange Dimensions	Complies with GB/T9113

Key Advantages:

⛴️ Marine-Specific Design: Saltwater-resistant coatings prevent corrosion in offshore applications
🔒 Zero-Leakage Guarantee: Double-sealing mechanism exceeds standard sealing requirements
🛠️ Maintenance-Friendly: Replaceable stem packing without full system shutdown
⚙️ Fail-Safe Operation: Visual position indicator prevents accidental discharge

Our valves undergo rigorous quality verification including:
• Hydrostatic tests at 1.5x working pressure
• Cycled operation tests (5000+ cycles)
• Material composition analysis

Frequently Asked Questions:

Q: Is this valve suitable for high-temperature boiler systems?
A: Yes, it handles continuous operation at 300°C with specialized graphite gaskets.
Q: What flange standards are supported?
A: Compatible with ANSI B16.5, JIS B2220, and DIN EN 1092-1 flanges.
Q: Are alternative materials available?
A: Bronze and stainless steel versions can be customized upon request.
Q: How does CB/T3841-1999 differ from general industrial standards?
A: This marine-specific standard requires enhanced corrosion resistance and shock/vibration testing.
Q: What is the lead time for bulk orders?
A: Standard orders ship in 15 days; contact us for expedited production options.
Q: Do you provide installation guidance?
A: Comprehensive manuals with torque specifications and alignment diagrams are included.

With shipments from Shanghai, Guangzhou, and Hong Kong ports reaching North America, Europe, and Asia-Pacific regions monthly, we've delivered over 8,000 marine valves since 2020. Our technical support team provides 24-hour response for operational troubleshooting. Experience why vessel operators across 22 countries specify Zhibang valves for critical discharge applications – request test reports and specification sheets today.

Product Tags: Flanged Boiler Discharge Valve , CB/T3841-1999 Marine Valve , Overboard Drain Valve