Resilient Wedge Gate Valve OS&Y/NRS Flanged Cast Iron -Z45X | Z41X

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The Farpro Z45X/41X resilient wedge gate valve is a high-quality valve that is designed for use in various applications. This valve features a resilient wedge that ensures a tight seal, preventing leaks and ensuring reliable operation. The NRS (non-rising stem) design means that the stem remains stationary while the gate moves up and down, which simplifies installation and reduces maintenance requirements.

resilient wedge gate valve Nrs

Z45X Resilient Wedge Gate Valve NRS Flanged - Cast Iron

Application Recommendations Recommended Scenarios

- Municipal water supply and drainage systems
- Building fire protection pipelines
- HVAC circulating water systems

Parameter CategorySpecific Parameters
Valve TypeResilient Wedge Gate Valve (Non-rising Stem Design)
Nominal DiameterDN50-DN1200 (Standard range, specific dimensions require confirmation)
Pressure RatingPN10/PN16 (Typical pressure classes for cast iron materials)
Body MaterialGrey Cast Iron (GG25/GGG50) or Ductile Iron (standards require confirmation)
Sealing MaterialGate: EPDM/NBR Rubber Seat: Rubber + Metal Skeleton Composite Structure
Connection StandardFlange Standard: GB/T 17241.6 (National Standard) or EN 1092-1 (European Standard)
Face-to-Face LengthCompliant with ISO 5752 Series 13 (Short pattern) or Series 21 (Long pattern)
Operating Temperature-20℃ to 120℃ (Temperature resistance range of rubber seals)
Applicable MediaWater, Sewage, Air, and other non-corrosive media
Operation MethodHandwheel Operation (Standard) Optional: Gearbox (DN≥300) or Electric Actuator

Key Feature Analysis

  1. Advantages of Resilient Wedge Design The wedge gate employs a two-piece resilient structure that automatically compensates for valve body deformation caused by temperature fluctuations, ensuring reliable sealing under low/high-temperature conditions.

  2. Non-Rising Stem Characteristics The stem nut is connected to the gate, allowing the stem to rotate without lifting during operation. This design minimizes installation height, making it ideal for space-constrained piping systems.

  3. Rubber Sealing Performance X-type rubber seals provide zero-leakage performance (compliant with ISO 5208 Class A), but note that the medium must not contain sharp particles.

⚠️ Limitations

  • Not suitable for corrosive media (stainless steel valve body required for such applications)

  • Metal hard-seal gate valves must replace rubber-sealed valves when medium temperature exceeds 120℃

  • Install filters for media containing solid particles

FOB Price of Z45X Resilient Wedge Gate Valve NRS Flanged - Cast Iron

  • Z45X, QT450-10, DN50, inch 2" $37
  • Z45X, QT450-10, DN65, inch 2.5" $44
  • Z45X, QT450-10, DN80, inch 3" $52
  • Z45X, QT450-10, DN100, inch 4" $63
  • Z45X, QT450-10, DN125, inch 5" $100
  • Z45X, QT450-10, DN150, inch 6" $126
  • Z45X, QT450-10, DN200, inch 8" $190
  • Z45X, QT450-10, DN250, inch 10" $296
  • Z45X, QT450-10, DN300, inch 12" $402
  • Z45X, QT450-10, DN350, inch 14" $604
  • Z45X, QT450-10, DN400, inch 16" $799
  • Z45X, QT450-10, DN500, inch 20" $1497
  • Z45X, QT450-10, DN600, inch 24" $2054
resilient wedge gate valve osy

Z41X Resilient Wedge Gate Valve OS&Y Flange - Cast Iron

Body: Cast Iron
Gate Valve Bonnet: Cast Iron
Stem: Stainless Steel
Disc Material: Cast Iron + NBR/EPDM
Stem Nut: Brass
HandWheel: Cast Iron

Nominal Diameter DN: 50-300mm

Parameter CategoryTechnical Specifications
Body MaterialGrey Cast Iron (GG25) or Ductile Iron (QT450)
Sealing MaterialNitrile Rubber (NBR) / Ethylene Propylene Diene Monomer (EPDM)
Nominal PressurePN10/PN16 (1.0-1.6 MPa)
Nominal DiameterDN50-DN600 (Standard range)
Operating Temperature-20℃ to +80℃ (Temperature tolerance of rubber seals)
Actuation MethodHandwheel Operation (OS&Y external threaded yoke structure)
Structural FeaturesFlat-bottom seat design, fully rubber-coated gate, rising stem with position indicator

Performance Characteristics

  Sealing Advantages

  • European vulcanization process ensures rubber-to-cast iron bonding strength ≥5 MPa
  • Zero-leakage classification (ISO 5208 Class A)

  Fluid Dynamics

  • Full-bore design (flow resistance coefficient ≤0.08)
  • Flat-bottom seat prevents debris accumulation

  Operational Performance

  • Opening/closing torque ≤200 N·m (DN100 specification)
  • Cycle life ≥5,000 operations

  Installation Requirements

  • Must be installed bidirectionally (no flow direction restriction)
  • Flange connections must comply with BS EN 1092-2 standard
  • Recommend installing expansion joints (to compensate for pipeline displacement)

Application Fields

  • Municipal water supply networks (compliant with GB/T 17241 standard)

  • Fire protection systems (UL/FM certified)

  • Wastewater treatment systems (resistant to weak acids/alkalis)

  • Building water supply and drainage systems (low-noise design)

FOB Price of Z41X Resilient Wedge Gate Valve OS&Y Flange - Cast Iron

  • Z41X, QT450-10, DN50, inch 2" $47
  • Z41X, QT450-10, DN65, inch 2.5" $54
  • Z41X, QT450-10, DN80, inch 3" $65
  • Z41X, QT450-10, DN100, inch 4" $80
  • Z41X, QT450-10, DN125, inch 5" $122
  • Z41X, QT450-10, DN150, inch 6" $146
  • Z41X, QT450-10, DN200, inch 8" $218
  • Z41X, QT450-10, DN250, inch 10" $336
  • Z41X, QT450-10, DN300, inch 12" $448
  • Z41X, QT450-10, DN350, inch 14" $678
  • Z41X, QT450-10, DN400, inch 16" $900
  • Z41X, QT450-10, DN500, inch 20" $1809
  • Z41X, QT450-10, DN600, inch 24" $2622

UL and FM Certificate of Compliance

Construction of resilient wedge gate valve

The flanged design of the Farpro resilient wedge gate valve makes it easy to install and ensures a secure connection to the piping system. The wedge gate valve body is made of cast iron, which provides excellent durability and corrosion resistance, making it suitable for use in a wide range of environments. The valve is also coated with a layer of epoxy resin to further enhance its resistance to corrosion.

The Farpro Resilient Wedge Gate Valve NRS Flanged Cast Iron is designed with a non-rising stem (NRS) that does not move up or down as the valve is opened or closed. This design allows for easier installation and maintenance as there is no need for the stem to be extended above the valve. Additionally, the flanged connections make it easy to connect the valve to existing piping systems.

Application of resilient wedge gate valve

partners and applications

The Farpro resilient wedge gate valve is commonly used in water distribution systems, sewage treatment plants, and industrial applications where a reliable and durable valve is required. Its sturdy construction and high-quality design make it an ideal choice for demanding applications where downtime must be minimized.

This valve is suitable for use in a wide range of applications, including water distribution systems, irrigation systems, and sewage treatment plants. It is designed to operate at a maximum working pressure of 250 psi and a temperature range of -20°F to 180°F.

Overall, This Farpro Valve is a reliable and efficient valve that provides long-lasting service in a variety of applications.

    Thank you for considering Farpro Valve as your preferred partner.
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