PN100 Low Temperature Steel 20GL High Pressure Electric GOST Flange Russian Standard Gate Valve

Product Overview

The PN100 Low Temperature Steel 20GL High Pressure Electric GOST Flange Russian Standard Gate Valve is a heavy-duty cryogenic high-pressure gate valve strictly designed and manufactured in accordance with Russian GOST industrial standards, including GOST 5762, GOST 3706, GOST 12815 and GOST 356. This professional Russian standard gate valve integrates multiple core advantages: PN100 ultra-high pressure rating, 20GL low temperature resistant steel body, GOST standard flange connection, electric automatic control and low-temperature high-pressure adaptive performance, specially developed for low-temperature, high-pressure and harsh industrial pipeline working conditions.

Different from ordinary carbon steel gate valves, this valve adopts exclusive 20GL low temperature pressure-resistant steel material, which has excellent low-temperature toughness, impact resistance and structural stability, effectively avoiding brittle fracture of valve body under ultra-low temperature environments. Matched with standard GOST Russian standard flange connection, it achieves precise matching and zero leakage connection with Russian standard pipelines. Equipped with a high-performance industrial electric actuator, it supports remote automatic opening and closing and on-site manual emergency switching. The optimized wedge hard seal structure ensures bidirectional tight shutoff. It is widely applicable to low-temperature petrochemical, natural gas transmission, energy engineering and Russian standard supporting industrial pipeline systems with PN100 high pressure and low temperature working requirements.

Key Features & Advantages

1. Full Russian GOST Standard Compliance
This PN100 high-pressure gate valve fully complies with complete Russian standard specifications: designed per GOST 5762, structural length per GOST 3706, flange dimension per GOST 12815, and hydrostatic test per GOST 356. All technical parameters and dimensional standards are completely compatible with Russian and CIS industrial pipeline projects, meeting local engineering acceptance standards.

2. PN100 Ultra-High Pressure Resistance
Customized for PN100 (10.0MPa) ultra-high pressure extreme working conditions. The thickened integral valve body structure is optimized through finite element pressure analysis, which can stably resist long-term high-pressure medium impact and pipeline pressure fluctuation. It effectively prevents valve body deformation, sealing failure and medium leakage, ensuring safe and stable operation of high-pressure pipeline systems.

3. Premium 20GL Low Temperature Steel Material
Adopts professional 20GL low temperature pressure-resistant steel exclusive for industrial cryogenic pipelines. Compared with ordinary WCB and GS-C25 cast steel, 20GL steel has outstanding low-temperature impact toughness and anti-brittle fracture performance, maintaining stable mechanical properties in long-term low-temperature environments. It is the designated special material for low-temperature high-pressure pipeline valves in cold-region industrial projects.

4. Standard GOST Flange Connection
Equipped with GOST 12815 standard flange (Russian standard flange), with accurate sealing surface size and precise bolt hole positioning. The flange connection has high structural rigidity and excellent sealing performance, realizing fast installation and stable connection. It completely matches traditional Russian standard pipelines, eliminating assembly errors and flange leakage risks.

5. Electric Intelligent Automatic Control
Configured with industrial-grade electric actuator, supporting remote centralized control, automatic opening and closing, precise stroke positioning and DCS system integration. It realizes intelligent unmanned management of pipeline systems. Equipped with emergency manual handwheel device, it can be manually operated under power failure or equipment failure to ensure no dead-end safety protection for pipeline operation.

6. Low Temperature Hard Seal Zero Leakage Design
Adopts optimized flexiblesolid wedge sealing structure, with sealing surface overlaid with high-hardness Stellite alloy. It has excellent low-temperature wear resistance and anti-scouring performance, avoiding sealing surface failure caused by low-temperature shrinkage. It achieves bidirectional bubble-tight zero leakage, adapting to long-cycle low-temperature and high-pressure continuous operation.

7. Professional Low-Temperature Adaptive Structure
The valve body and internal parts adopt low-temperature structural optimization design, with reserved shrinkage tolerance for low-temperature environments. The special low-temperature resistant packing and gaskets prevent medium leakage caused by material hardening at low temperature, ensuring long-term stable sealing performance in ultra-low temperature working conditions.

Technical Specifications

Installation, Operation & Maintenance Notes

1. Low-Temperature Operation Specifications
This PN100 GOST gate valve is specially designed for low-temperature high-pressure working conditions. Over-pressure operation exceeding PN100 rated pressure and ultra-low temperature beyond -45℃ are strictly prohibited to prevent low-temperature brittle fracture and structural damage. The valve is only used for full-open and full-closed pipeline isolation, and throttling use is forbidden to avoid high-speed medium scouring damage to low-temperature sealing surfaces.

2. Standard GOST Flange Installation
Install the valve on horizontal pipelines with the electric actuator facing upward, and strictly align the flow direction with the valve body marking arrow. Adopt matched GOST standard flange gaskets and bolts for installation to ensure uniform flange stress and tight sealing. Reserve sufficient heat preservation and maintenance space for low-temperature pipelines and electric actuators to avoid frost damage and equipment failure.

3. Electric System Maintenance
Regularly inspect the electric actuator power supply, control signal and waterproof and frost-proof performance. Avoid frequent start-stop operation to prevent motor overload burnout. Cut off the power supply completely before manual emergency operation to ensure construction safety. Regularly check the stem flexibility and lubricate with low-temperature special grease to prevent jamming at low temperature.

4. Low-Temperature Anti-Corrosion & Protection
For long-term low-temperature operation, regularly check the valve body and flange sealing status to prevent frost leakage and low-temperature corrosion. For idle valves in cold seasons, drain the residual medium in the valve cavity completely to avoid medium freezing and cracking the valve body. Regularly replace low-temperature resistant packing and gaskets to maintain stable sealing performance.

Applications

• Cold Region Petrochemical Industry: Low-temperature petrochemical process pipelines, low-temperature crude oil transmission systems, cold-region chemical medium delivery pipelines

• Natural Gas Transmission Project: Low-temperature natural gas gathering and transportation pipelines, liquefied gas auxiliary pipelines, high-pressure gas station isolation systems

• Russian Standard Supporting Engineering: Russia and CIS countries industrial pipeline projects, GOST standard high-pressure low-temperature supporting valve equipment

• Energy & Power Industry: Low-temperature circulating medium pipelines, high-pressure cold water systems, power plant auxiliary low-temperature pipeline equipment

• Industrial Cryogenic System: Industrial low-temperature cooling systems, low-pressure low-temperature gas delivery pipelines, cold-region industrial pipeline safety isolation equipment

Advantages of Our PN100 20GL GOST Electric Gate Valve

✅ Full GOST Russian Standard Compliance — Strictly implemented complete GOST standard system, fully compatible with Russian and CIS industrial pipeline projects.

✅ Professional 20GL Low Temperature Steel — Exclusive low-temperature pressure-resistant steel, excellent low-temperature toughness, no brittle fracture in ultra-low temperature environments.

✅ PN100 Ultra-High Pressure Resistance — Thickened high-pressure structure, stable pressure resistance, adapting to 10.0MPa extreme high-pressure working conditions.

✅ Standard GOST Flange Matching — Precise Russian standard flange size, fast installation, tight sealing, no assembly deviation.

✅ Intelligent Electric Control — Remote automatic control + manual backup, realizing intelligent pipeline operation management.

✅ Low-Temperature Zero Leakage Performance — Optimized low-temperature sealing structure, specially adapted to cold and high-pressure harsh working conditions, long service life.

Order & Certification Information

MOQ: 1 Unit
Production Lead Time: 18-35 working days for standard PN100 sizes
Supporting Certificates: EN10204 3.1 Material Certificate, GOST 356 Test Report, ISO9001 Quality Certificate
Export Packaging: Anti-rust & anti-freezing treatment + Reinforced fumigation-free export wooden case
Quality Warranty: 12-month professional warranty + lifelong technical support

Contact Us for customized sizes, special low-temperature parameters and bulk preferential quotation of PN100 20GL low temperature steel GOST flange electric gate valves.

What Is a Electric Flanged Gate Valve

An Electric Flanged Gate Valve is an automated industrial valve used to control or isolate the flow of fluids in pipeline systems. It operates through a gate that moves vertically to fully open or close the passage, while an electric actuator provides powered operation instead of manual control. The flanged ends ensure strong and reliable pipeline connections. This valve is widely used in water treatment, power plants, chemical systems, and industrial automation processes where remote or precise control is required.

Why the Electric Flanged Gate Valve Matters

The Electric Flanged Gate Valve is important because it enables efficient remote operation and stable flow control in modern industrial systems. Electric actuation reduces manual labor and improves operational precision. It is especially valuable in large or hard to access installations where manual operation is difficult. The valve enhances system safety by allowing quick response to process changes, helping maintain stable pipeline operation and protecting equipment from abnormal flow conditions.

Common Product Types by Electric Flanged Gate Valve

Electric Flanged Gate Valves come in several structural variations to meet different working conditions. Common types include rising stem and non rising stem designs, each suited for specific installation spaces and operational visibility needs. Wedge types such as flexible wedge and solid wedge are widely used depending on sealing requirements. Different body materials and sealing configurations are available for corrosive or high temperature environments. Electric actuator types also vary based on torque and control precision requirements.

Key Advantages of Electric Flanged Gate Valve

The valve offers reliable automation, stable sealing performance, and convenient remote control capability. Electric operation improves efficiency and reduces manual intervention in complex systems. The flanged connection design ensures strong pipeline stability and simplifies installation. Its robust structure provides excellent resistance to pressure and temperature changes. The valve also supports precise control integration, making it suitable for advanced industrial automation and process management systems.

Electric Flanged Gate Valve Machine Structure and Core Stations

Manufacturing begins with forming the valve body, bonnet, gate, and stem through casting or forging processes. Core stations include heat treatment to improve mechanical strength, followed by precision CNC machining of sealing surfaces, flange faces, and guide areas. Assembly stations install the gate, stem, packing components, and electric actuator system. Final production stages include pressure testing, electrical function testing, surface treatment, cleaning, marking, and packaging to ensure reliable operation and dimensional accuracy.