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Nakakita Seisakusho DY-GOZ Two-Way Single-Seat Control Valve: Precision Marine Fluid Control Equipment

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Introduction

In marine and industrial systems where temperature and fluid control are critical, precise valve operation ensures efficiency, reliability, and safety. The Nakakita Seisakusho DY-GOZ Two-Way Single-Seat Control Valve is engineered for high-performance fluid control applications, especially for steam regulation in heater systems. This valve represents Japan’s reputation for advanced engineering, delivering stable and responsive control performance under demanding conditions.


Marine fluid control ad for MV-GOZ valve. Text and Nakakita logo on blue gradient background. Valve displayed on the right.
Explore the precision of the Nakakita Seisakusho MV-GOZ Two-Way Single-Seat Control Valve, designed for optimal marine fluid control in steam and temperature regulation.

Technical Overview of the Nakakita Seisakusho DY-GOZ Two-Way Single-Seat Control Valve

The Nakakita Seisakusho DY-GOZ Two-Way Single-Seat Control Valve is designed to provide accurate flow control through a compact, durable, and high-efficiency structure. Its construction incorporates a single-seat globe valve configuration, ensuring minimal internal leakage and reliable modulation across a wide range of operating pressures and temperatures.

Key Specifications

Specification

Description

Valve Type

Single-seat globe type

Pressure Rating

JIS 5K–20K, ANSI 125–300

Nominal Size

15A, 20A, 25A

Body Material

FC200, SCPH2

Flow Characteristic

Equal percentage

Rangeability

20:1 to 30:1

Leakage Rate

≤ 0.01% of rated Cv

Optimized Control for Marine Applications

The Nakakita Seisakusho DY-GOZ Two-Way Single-Seat Control Valve is primarily used as a steam control valve for heater systems, and also supports precise temperature control for fuel oil and lubricating oil systems. By adjusting the valve opening according to pneumatic or electrical control signals, it ensures stable process flow control that matches the required system conditions.

Nakakita’s refined internal valve design provides excellent flow linearity and response characteristics, enabling consistent performance even under fluctuating load conditions—critical in marine engine rooms and industrial heat control systems.

Engineering Advantages

  • High Accuracy Control: Equal-percentage flow characteristics offer precise modulation across the full valve stroke.

  • Compact and Robust Design: Built from durable FC200 and SCPH2 materials for extended service life in harsh environments.

  • Wide Rangeability: Supports 20:1 to 30:1 control range, suitable for both fine and broad flow adjustments.

  • Low Internal Leakage: ≤0.01% of rated Cv ensures minimal fluid loss and high energy efficiency.

  • Adaptable Configuration: Compatible with pneumatic or electric actuators to suit varied system requirements.

Trusted Japanese Engineering for Global Marine Systems

Nakakita Seisakusho, a renowned Japanese manufacturer, has decades of expertise in marine control systems and industrial valve technology. The DY-GOZ Two-Way Single-Seat Control Valve embodies this legacy—providing dependable performance, precise control, and low maintenance requirements across diverse operational environments.


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