2-Valve Manifolds - Flat Type - JS2P0-3FNWL-E
2-Valve Manifolds - Flat Type - JS2P4-3FNWL-E
2-Valve Manifolds - Flat Type - JS2P5-3FNNL
2-Valve Manifolds - Flat Type - JVA1-2P1-3FNWLE
2-Valve Manifolds - Flat Type - JVA1-2P2-3FNWLE
2-Valve Manifolds - Flat Type - JVA1-2P3-3FNWLE
2-Valve Manifolds - H Type - JVA1-2H0-3FWWLE
2-Valve Manifolds - T Type - JVA1-2T0-3FNWLE
  • 2-Valve Manifolds - Flat Type - JS2P0-3FNWL-E
  • 2-Valve Manifolds - Flat Type - JS2P4-3FNWL-E
  • 2-Valve Manifolds - Flat Type - JS2P5-3FNNL
  • 2-Valve Manifolds - Flat Type - JVA1-2P1-3FNWLE
  • 2-Valve Manifolds - Flat Type - JVA1-2P2-3FNWLE
  • 2-Valve Manifolds - Flat Type - JVA1-2P3-3FNWLE
  • 2-Valve Manifolds - H Type - JVA1-2H0-3FWWLE
  • 2-Valve Manifolds - T Type - JVA1-2T0-3FNWLE

    • 2-Valve Manifolds

    • The valve tip adopts cone surface and rear ball head design, providing smaller opening and closing torque and longer service life.
    • The sealing part of the valve stem is processed by extrusion, with a surface roughness of Ra0.1, which reduces friction with the packing and improves the service life of the valve stem and packing.
    • The valve body sealing port adopts an automatic centering design to ensure that the valve tip sealing line is in the same position each time it is shut off.
    • Blue, green and red are used to distinguish shut-off valves, balance valves and drain/test valves, making the installation site clear at a glance.

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    Overview

    The valve manifolds and valves have nice appearance, compact structure and reliable sealing feature. They can be installed in conjunction with various differential pressure/pressure transmitters and pressure instruments to open, cut off and discharge the flow rate, pressure, pressure difference and liquid level. They are also convenient for on-site installation, commissioning, maintenance and inspection of instruments. The main structural types are: Flat type, T type, H type and column type.

    Features

    • Integrated structure, safe and reliable.
    • Stainless steel pins are used to prevent the valve seat from coming off due to vibration.
    • Burr-free threads and internal surfaces reduce leakage and ensure accurate meter readings.
    • The valve seat and the valve body are hard-connected to provide a reliable zero-leakage seal.

    Operating Principle

    The 2-Valve Manifold consists of a valve body, one shut-off valve, and one drain valve, with a drain outlet of 1/4NPT thread.

    1. Operating procedure: Close the shut-off valve and drain valve first, and slowly open the shut-off valve during operation until it’s fully open. Finally, the transmitter is put into normal operation.
    2. Calibration procedure: Close the shut-off valve and drain valve, connect the pressure connector from the 1/4NPT drain outlet, and slowly open the drain valve until it’s fully open.
    3. Maintenance procedure: Close the shut-off valve, open the drain valve, and discharge the medium inside the manifold from the 1/4NPT drain outlet. Be careful not to face people directly. At this time, the manifold can be repaired and maintained.
    2-Valve Manifolds - T Type - JVA1-2T0-3FNWLE - Structure
    T Type
    2-Valve Manifolds - H Type - JVA1-2H0-3FWWLE - Structure
    H Type
    2-Valve Manifolds - Flat Type - JS2P5-3FNNL - Structure
    Flat Type

    Specification and Model Code of 2 Valve Manifold
    Specification and Model Code 2 of 2 Valve Manifolds

    Structure of 2-Valve Manifolds
    • 1. The handle is equipped with an anti-loosening screw to better transmit torque.
    • 2. Blue, green and red dust covers are used to distinguish shut-off valves, balance valves and drain/test valves, and to prevent dust and impurities from entering the valve stem and affecting the sealing process.
    • 3. The gland nut is used to push the packing to deform and expand it, forming a seal with the valve stem and valve seat. If there is a slight leakage, it can also be adjusted twice or multiple times.
    • 4. The valve stem adopts rolling thread to improve the surface hardness of the thread, making it more wear-resistant and extending the service life of the valve stem.
    • 5. The locking nut provides reliable locking force to prevent the gland nut from loosening due to vibration, causing the packing to lose its sealing function.
    • 6. The sealing part of the valve stem is processed by extrusion, with a surface roughness of Ra0.1, which reduces friction with the packing and improves the service life of the valve stem and packing.
    • 7. Metal washer provides non-rotating thrust and reduce packing damage due to rotational friction.
    • 8. Bottom design PTFE/flexible graphite packing prevents media from entering and corroding the valve stem threads.
    • 9. When the valve is fully opened, the conical surface on the back of the valve stem forms a linear contact with the valve seat, providing auxiliary sealing for the valve stem.
    • 10. The dual-phase steel cone head provides higher hardness to avoid damage after repeated use. The tail ball head design provides non-rotating push, and the head taper design forms a linear sealing with the valve body orifice. The overall universal swing design reduces the sealing risks caused by different shafts of other parts.

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