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. On the Z45X, the non-rising stem rotates without moving up or down while the gate travels inside the body.
The Z41X uses an OS&Y rising-stem arrangement, giving a visible indication of gate travel. Both models are intended for pipeline isolation, normally fully open or fully closed. Choose the stem arrangement to suit the available headroom and operating access.
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 Category | Specific Parameters |
|---|---|
| Valve Type | Resilient Wedge Gate Valve (Non-rising Stem Design) |
| Nominal Diameter | DN50-DN1200 (Standard range, specific dimensions require confirmation) |
| Pressure Rating | PN10/PN16 (Typical pressure classes for cast iron materials) |
| Body Material | Grey Cast Iron (GG25) or Ductile Iron (GGG50; confirm the grade required for the order) |
| Sealing Material | Gate: EPDM/NBR Rubber Seat: Rubber + Metal Skeleton Composite Structure |
| Connection Standard | Flange Standard: GB/T 17241.6 (National Standard) or EN 1092-1 (European Standard) |
| Face-to-Face Length | Compliant with ISO 5752 Series 13 (Short pattern) or Series 21 (Long pattern) |
| Operating Temperature | -20℃ to 120℃ (Temperature resistance range of rubber seals) |
| Applicable Media | Water, Sewage, Air, and other non-corrosive media |
| Operation Method | Handwheel Operation (Standard) Optional: Gearbox (DN≥300) or Electric Actuator |
Advantages of Resilient Wedge Design The rubber-covered wedge provides a resilient sealing surface when it meets the valve body seat. The rubber compound and complete valve configuration should suit the medium and operating conditions.
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.
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
For corrosive media, discuss the compatibility of the body, trim and rubber compound with the actual fluid
For service above the listed 120℃ temperature limit, discuss a suitable alternative valve configuration
Install filters for media containing solid particles
FOB Price of Z45X Resilient Wedge Gate Valve NRS Flanged - Cast Iron
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Z45X, QT450-10, DN50, inch 2" $37
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Z45X, QT450-10, DN65, inch 2.5" $44
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Z45X, QT450-10, DN80, inch 3" $52
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Z45X, QT450-10, DN100, inch 4" $63
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Z45X, QT450-10, DN125, inch 5" $100
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Z45X, QT450-10, DN150, inch 6" $126
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Z45X, QT450-10, DN200, inch 8" $190
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Z45X, QT450-10, DN250, inch 10" $296
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Z45X, QT450-10, DN300, inch 12" $402
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Z45X, QT450-10, DN350, inch 14" $604
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Z45X, QT450-10, DN400, inch 16" $799
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Z45X, QT450-10, DN500, inch 20" $1497
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Z45X, QT450-10, DN600, inch 24" $2054
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 Category | Technical Specifications |
|---|---|
| Body Material | Grey Cast Iron (GG25) or Ductile Iron (QT450) |
| Sealing Material | Nitrile Rubber (NBR) / Ethylene Propylene Diene Monomer (EPDM) |
| Nominal Pressure | PN10/PN16 (1.0-1.6 MPa) |
| Nominal Diameter | DN50-DN600 (Standard range) |
| Operating Temperature | -20℃ to +80℃ (Temperature tolerance of rubber seals) |
| Actuation Method | Handwheel Operation (OS&Y external threaded yoke structure) |
| Structural Features | Flat-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
- Can be used with flow in either direction (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
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Z41X, QT450-10, DN50, inch 2" $47
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Z41X, QT450-10, DN65, inch 2.5" $54
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Z41X, QT450-10, DN80, inch 3" $65
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Z41X, QT450-10, DN100, inch 4" $80
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Z41X, QT450-10, DN125, inch 5" $122
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Z41X, QT450-10, DN150, inch 6" $146
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Z41X, QT450-10, DN200, inch 8" $218
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Z41X, QT450-10, DN250, inch 10" $336
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Z41X, QT450-10, DN300, inch 12" $448
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Z41X, QT450-10, DN350, inch 14" $678
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Z41X, QT450-10, DN400, inch 16" $900
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Z41X, QT450-10, DN500, inch 20" $1809
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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
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.
Request a Z45X or Z41X Quotation
The two price lists cover different stem arrangements. Specify Z45X (NRS) or Z41X (OS&Y), the required size, quantity and destination. For a replacement in an existing line, include a nameplate photo and tell us about the available operating space.
The listed FOB prices are indicative. A current quotation should match the required body and sealing materials, connection and operating arrangement, along with the quantity and delivery requirements. Send Farpro your gate valve enquiry and we can discuss the appropriate configuration with you.