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Home > Industrial Equipment & Components > Valve > Gate Valve > PN10/PN16 Marine Non-Rising Stem Gate Valve for Low-Pressure Ship Piping

PN10/PN16 Marine Non-Rising Stem Gate Valve for Low-Pressure Ship Piping

PN10/PN16 Marine Non-Rising Stem Gate Valve for Low-Pressure Ship Piping thumbnail-3

PN10/PN16 Marine Non-Rising Stem Gate Valve for Low-Pressure Ship Piping thumbnail-4

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PN10/PN16 Marine Non-Rising Stem Gate Valve for Low-Pressure Ship Piping photo-3

PN10/PN16 Marine Non-Rising Stem Gate Valve for Low-Pressure Ship Piping photo-4

PN10/PN16 Marine Non-Rising Stem Gate Valve for Low-Pressure Ship Piping photo-5

Product Spotlights

Space-saving non-rising stem design ideal for confined marine engine rooms. Built for PN10/PN16 low-pressure shipboard systems like ballast and cooling water lines. Features corrosion-resistant material options for seawater service. Ensures reliable shut-off with durable construction. Manual handwheel operation for straightforward control. Manufactured under ISO9001 for consistent global quality.

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

Key Specifications

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Pressure Rating:

PN10 / PN16

Valve Type:

Non-Rising Stem Gate Valve

Primary Application:

Low-Pressure Marine Piping Systems

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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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Pressure Rating PN10 / PN16

Valve Type Non-Rising Stem Gate Valve

Primary Application Low-Pressure Marine Piping Systems

Stem Design Non-Rising Stem (Inside Screw)

Operation Type Manual Handwheel

Connection Standard Flanged End (Standard as per order)

Material (Body/Bonnet) Cast Steel / Ductile Iron / Optional

Seat Material Stainless Steel / Optional

Packing Material Graphite / PTFE / Optional

Temperature Range Standard: -20°C to 200°C

As a specialized manufacturer with a strong focus on the marine industry, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our PN10/PN16 Marine Non-Rising Stem Gate Valve. Engineered for reliability in low-pressure ship piping applications, this valve embodies our commitment to quality and practical design, honed since our establishment in 2016. It is a critical component designed to ensure secure isolation and smooth flow control in the demanding environments of vessel operations, backed by our ISO9001 certified manufacturing processes.

This valve is meticulously crafted to meet the specific challenges of marine service. Its non-rising stem design is a key feature, offering significant advantages in confined engine room spaces where vertical clearance is limited. The stem threads are isolated from the line media, reducing wear and corrosion, which is crucial for longevity in potentially corrosive marine atmospheres. We utilize robust materials and precision machining to deliver a product that promises dependable performance cycle after cycle.

Core Technical Specifications & Advantages:

Optimized Space Design: The inside screw, non-rising stem mechanism allows for compact installation without requiring overhead clearance for stem movement, making it ideal for densely packed marine piping layouts.
Enhanced Durability: Critical components like the stem and seat are available in corrosion-resistant materials (e.g., stainless steel) upon request, directly addressing the saltwater and humid operational environment.
Reliable Sealing: A combination of precision-machined wedge/seat interfaces and high-quality packing (graphite or PTFE) ensures a tight seal in both the open and closed positions, minimizing leakage risks.
Easy Operation & Maintenance: The handwheel operation is straightforward, and the design often allows for in-line maintenance or packing replacement without full removal from the pipeline, reducing downtime.
Versatile Application: While designed for low-pressure (PN10/16) shipboard systems such as ballast, bilge, cooling water, and tank vent lines, its robust construction makes it suitable for various industrial low-pressure services.

Below is a summary of typical specifications. Please note that specific dimensions and materials can be customized based on your project requirements.

Parameter	Details
Pressure Rating	PN10 (10 bar) / PN16 (16 bar)
Valve Type	Gate Valve, Non-Rising Stem (NRS)
Operation	Manual Handwheel
Connection	Flanged (RF/FF), sizes customizable
Body Material (Typical)	Cast Steel WCB, Ductile Iron, Cast Iron
Trim Materials (Seat/Stem)	Stainless Steel 304/316, Bronze, etc. (Optional)
Temperature Range	Standard: -20°C to 200°C (Customizable for wider ranges)
Design Standard	Manufactured per ISO, API, or customer specifications

Benefits for Your Operations:

Space Efficiency: Enables installation in tight spaces, optimizing engine room layout and accessibility.
Reduced Lifecycle Cost: Durable construction and protected stem threads lead to lower maintenance frequency and longer service life.
Operational Safety: Provides a positive shut-off for isolating sections of piping, which is critical for safety during maintenance or emergency situations onboard.
Global Compliance: Our manufacturing under ISO9001 guidelines ensures consistent quality, supporting your needs for reliable components that meet international maritime standards.

With an annual export value ranging between US$1 Million and US$1.5 Million and a presence in diverse markets from North America and Europe to Southeast Asia and Africa, Shanghai Zhibang has proven its capability to deliver reliable valve solutions worldwide. Our strategic shipment ports, including Shanghai, Guangzhou, Hong Kong, and Beijing, ensure flexible and efficient logistics to meet your schedule. Choose our PN10/PN16 Marine Non-Rising Stem Gate Valve for a blend of space-saving design, marine-grade durability, and manufacturer-direct reliability. Contact us today to discuss your specific requirements and experience the Zhibang advantage in marine fluid control.

Frequently Asked Questions (FAQ):

Q: What is the main advantage of a non-rising stem design over a rising stem for marine use?
A: The primary advantage is space saving. The stem does not move upward during operation, so no additional vertical clearance is needed above the valve. This is crucial in the confined and crowded spaces typical of ship engine rooms and piping racks.
Q: Can this valve be used with seawater?
A: Yes, but material selection is key. While standard models may use cast iron or carbon steel with protective coatings, we highly recommend specifying corrosion-resistant trim materials like stainless steel (316/316L) for the stem, seat, and wedge when handling seawater or other corrosive media to ensure long-term performance.
Q: Is the valve suitable for throttling or flow regulation?
A: Gate valves, including this non-rising stem type, are primarily designed for fully open or fully closed service (isolation). They are not recommended for throttling, as partial opening can cause vibration, wire-drawing (erosion) of the seat and disc, and unstable flow control.
Q: What flange standards and face types do you offer?
A> We commonly supply valves with flanges conforming to international standards like ISO, DIN, ANSI/ASME. Face types include Raised Face (RF) and Flat Face (FF). The specific standard, pressure class (PN10/16), and dimensions (DN size) are determined based on your piping specifications.
Q: How do I maintain or repack the gland packing on this NRS valve?
A> Maintenance is designed to be straightforward. The packing box is typically accessible by loosening the gland follower bolts. New packing rings can be added or replaced with the valve under pressure, although isolating the line is always safer. Detailed maintenance instructions are provided with the product.
Q: Do you offer actuators for automated operation?
A> While this product listing is for manual handwheel operation, we can provide options for fitting electric, pneumatic, or hydraulic actuators upon request. This allows for remote operation and integration into automated control systems.
Q: What is your lead time for an order of these marine gate valves?
A> Lead time depends on order quantity, material specifications, and customization requirements. For standard configurations, we typically maintain a competitive lead time. Please contact us with your detailed request for an accurate production and delivery schedule.
Q: Are testing and inspection certificates provided?
A> Yes, as an ISO9001 certified manufacturer, we conduct rigorous tests, including shell tests, seat tests, and material checks. Relevant inspection reports and test certificates (e.g., material test reports) can be provided with the shipment to ensure quality compliance.