GOST Standard Double Flanged GOST Wedge Gate Valve

• Customization: Available
• Media: Oil,Gas,Water
• Temperature: Ordinary Temperature
• Model NO.: Z44T-10/16
• Type: Direct-acting
• Material: Cast Iron
• Connection Form: Flange
• Pressure: Low Pressure
• Actuator: Manual
• Seal Surface: Wedge Gate Valve
• Thread Position of Valve Rod: Outside Gate Valve
• Usage: Regulation
• Standard: GOST
• Application: Industrial Usage, Water Industrial Usage
• Transport Package: Plywood
• Specification: DN32~DN800
• Trademark: non
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000PCS/Month

Product Description

Introduction

A GOST standard cast iron parallel double disc gate valve is a high-performance industrial valve designed and manufactured in strict compliance with Russian GOST standards. Specifically tailored for medium-to-low pressure applications, this valve features a parallel double disc structure that ensures reliable sealing and efficient flow control in pipelines carrying water, sewage, steam, oil, and other non-corrosive media. Its design emphasizes ease of maintenance, durability, and compatibility with GOST-compliant pipeline systems.
Standards Compliance
Design Standard:GOST 5762-2002: Specifies general technical requirements for gate valves, including structural integrity, pressure/temperature ratings, and material compatibility.
Flange Dimensions:GOST 33259-2015 (superseding GOST 12815-80): Defines flange connections for valves and pipelines with nominal pressures from PN6 to PN160, ensuring seamless integration with GOST-compliant piping systems.
Face-to-Face Dimensions:GOST 3706-93: Standardizes end-to-end lengths for consistent installation across different valve sizes.
Testing Standard:GOST 356-80: Mandates hydrostatic testing at 1.5x nominal pressure to verify leak-free performance and structural integrity.
Material Standard:GOST 9564: Specifies cast iron grades (e.g., HT200, HT250) for valve bodies, ensuring high tensile strength (≥200 MPa) and corrosion resistance in industrial environments.

Specification

Features

Parallel Double Disc Mechanism:
Two parallel discs, spring-loaded or hydraulically actuated, compress against the seats to achieve tight sealing. This design minimizes wear and ensures bidirectional flow control .
Full-port configuration reduces pressure drop, ideal for high-flow applications.
Material and Construction:
Body: Cast iron (GOST 9564) with epoxy coating for corrosion resistance in water and sewage systems.
Discs: Ductile iron or stainless steel (1.4308/1.4408) for enhanced durability under abrasive conditions.
Seats: Integral cast iron or replaceable elastomeric seals (EPDM/NBR) for tight closure.
Performance Parameters:
Pressure Ratings: PN6 to PN160 (0.6–16.0 MPa).
Temperature Range: -10°C to 120°C (standard cast iron); up to 300°C with high-temperature alloys.
Size Range: DN50–DN1200 (2"–48").
Operation and Maintenance:
Manual Actuation: Handwheel or gearbox for precise control.
Quick Disassembly: Bolted bonnet design allows easy access to internal components for inspection or repair.
Lubrication: Stem threads and bearings require periodic lubrication to maintain smooth operation.
Applications
Municipal Water and Sewage Systems:Isolation and flow regulation in potable water distribution, wastewater treatment plants, and stormwater management.
Industrial Processes:Petrochemical, power generation, and food processing industries for handling steam, oil, and non-corrosive chemicals.
HVAC Systems:Heating/cooling systems requiring reliable on/off control and minimal maintenance.

Packing 

shipment

containers

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

After Sales Service

Standard Warranty: 12 months or 2,000 operating hours (whichever comes first).
Extended Warranty: Optional coverage up to 36 months.
Global Support: 24/7 technical assistance and spare parts supply.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

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FAQ

Q: What’s the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers in key regions.

Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.