JZFS Type High-Pressure Hydraulic Stop Valve

I. Product Introduction

The JZFS series stop valve is developed based on mature foreign technical data, specifically designed for hydraulic pipelines and hydraulic integrated control systems, for internal oil circuit fluid conduction and cut-off control. The valve adopts a hydraulic balanced valve body structure with a cone seal valve core, requiring small opening/closing force, with stable and reliable oil circuit sealing performance, while featuring simple operation, neat and attractive appearance, suitable for long-term industrial high-pressure hydraulic oil circuit control. The valve body is made of high-quality steel forgings with anti-corrosion coating surface treatment, corrosion-resistant and resistant to hydraulic medium erosion, with long service life.

II. Structure Composition

The complete valve structure is streamlined, with standard configuration consisting of valve body, cone valve core, adjusting rod, valve stem, operating handwheel/handle and other components assembled together, with high component fit and convenient disassembly/maintenance, overall pressure-resistant and stable structure, suitable for high-pressure oil circuit alternating conditions.

III. Surface Process and Material

The valve body base material is integrated steel forging, with high structural strength and pressure resistance without deformation; the valve body surface can be treated with nickel plating and chrome plating anti-corrosion processes, improving rust prevention, oil resistance, and acid/alkali corrosion resistance, suitable for indoor humid and outdoor exposed hydraulic pipeline conditions.

IV. Installation Connection Types

This series of stop valves is compatible with three mainstream pipeline connection methods, which can be flexibly selected according to hydraulic pump stations, integrated valve blocks, and on-site pipeline layout:

1. Internal threaded connection: Suitable for small oil circuits and convenient disassembly pipelines;

2. Flange connection: Suitable for medium-high pressure and large flow main hydraulic pipelines;

3. Plate connection: Suitable for hydraulic integrated valve block embedded installation, saving installation space.

V. Product Structural Features

1. Hydraulic balanced valve body design, balanced valve core force, small valve opening force, manual opening/closing is easy and labor-saving;

2. Cone seal valve core with excellent fitting sealing, good high-pressure oil circuit pressure holding effect, eliminating internal leakage;

3. Forged steel integrated valve body, high structural strength, high-pressure impact resistance, not easy to crack or deform, suitable for high-pressure hydraulic systems;

4. Dual-layer anti-corrosion coating options, nickel and chrome plating processes for wear and corrosion resistance, suitable for long-term hydraulic oil immersion;

5. Three connection types fully covered, suitable for split pipeline and integrated valve block multi-scenario installation, strong selection versatility;

6. Simple control structure, handwheel linear control opening/closing, controllable stroke, can slightly adapt to oil circuit throttle pressure regulation.

VI. Core Applications

Specifically suitable for various complete hydraulic systems, hydraulic main pipelines, and hydraulic integrated valve groups, controlling comprehensive oil circuit fluid flow and cut-off, widely used in hydraulic pump stations, construction machinery oil circuits, energy storage hydraulic circuits, and machine tool hydraulic systems, for branch flow cut-off, oil circuit isolation, and start-stop on-off control.

VII. Usage Precautions

1. Verify oil circuit medium flow direction during installation, assemble according to valve body identification direction to ensure balanced cone seal force;

2. For high-pressure oil circuits, prefer flange and plate connection models; threaded models are suitable for low-pressure auxiliary oil circuits;

3. Turn the handwheel at uniform speed to open/close the valve; do not violently press the valve stem to avoid cone seal impact wear;

4. Regularly check valve body surface coating; repair anti-corrosion treatment promptly after coating damage to prevent valve body rust;

5. Pre-filter medium to remove impurities; hard particle impurities will scratch the cone seal, reducing oil circuit sealing and pressure holding capacity;

6. For long-term closed pressure holding conditions, no need to frequently adjust the valve stem; if leakage occurs, prioritize inspecting the valve core sealing surface.