Stahl-Armaturen PERSTA GmbH
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Stahl-Armaturen PERSTA GmbH products

Valves

PERSTA - High-Performance Shut-off Gate Valves for Pressure Isolation

PERSTA shut-off gate valves are designed to provide reliable pressure isolation across various demanding applications including chemical and petrochemical industries, industrial and power plant engineering, and shipbuilding. Leveraging decades of experience, these valves boast exceptional sealing capabilities, long service life, and ease of maintenance. PERSTA ensures quality with the use of forged steel manufactured in-house by SIEPMANN-WERKE, which helps achieve high strength, low weight, and a defect-free metal structure. The valves accommodate media such as water, steam, gas, and oil under pressures up to PN 630, with nominal sizes up to DN 1000, and temperatures reaching up to +650°C. Compliance with global standards like DIN, ISO, ASME, EAC, and AFNOR broadens their applicability beyond Germany. A rigorous multi-stage inspection process, from supplier audits to pre-delivery leakage tests, reinforces the valves' high-quality standards.

PERSTA - PERSTA Swing Check Valves for Backflow Prevention

PERSTA swing check valves are engineered to ensure unidirectional flow and prevent backflow in various industrial applications. Manufactured entirely in-house from high-quality forged steel sourced from SIEPMANN-WERKE, these valves are designed for optimal durability with precise engineering practices. Their low-maintenance nature stems from rigorous quality control at each manufacturing step, ensuring each part, including bolts, is assembled to exact torque specifications. This results in reliable performance even under demanding conditions. These valves support various pressure levels up to PN 630 and handle temperatures up to +650°C, making them suitable for water, steam, oil, gas, and other non-aggressive media. The flexibility in design, with options like pressure sealing bonnets and free-flow capabilities, caters to a wide range of industry requirements, from power plants to refineries worldwide.

PERSTA - High-Pressure Stop Check Valve for Flow Control and Backflow Prevention

The high-pressure stop check valve from PERSTA integrates the dual functions of a shut-off gate valve and a swing check valve in a compact design. Unlike traditional valves that suffer pressure loss when changing the medium's flow direction, this valve mitigates such losses, ensuring optimized pressure management. The innovative gate valve architecture uses one disc in the open position to also act as a swing check valve, closing swiftly to prevent backflow in conditions of pressure loss or reverse flow. The valve is constructed from high tensile strength forged steel, leading to superior durability and reduced weight, which lowers structural costs and contributes to enhanced plant efficiency. Tested over extended periods at the Marchwood CCGT Power Station, this valve demonstrated increased energy production and profitability. The valve is compatible with various media forms, tolerates temperatures up to 650°C, and can withstand pressures up to PN 630. It's available in sizes up to DN 450, accommodating diverse industrial requirements.

PERSTA - Smart Valve Monitoring System for Industrial Use

The Smart Valve Monitoring System by PERSTA is designed to enhance safety and efficiency in industrial settings by providing continuous monitoring of valve functionality and wear. This system is pivotal for preventing valve-related failures by alerting operators about the need to retighten casing cover bolts to prevent potential leakage, and ensuring the structural integrity of valves. By centralizing the monitoring of individual valves and larger valve networks, the system allows for real-time insights into the operational status of valves, thus preventing unforeseen damages and maintenance costs. The system supports early damage detection, optimizes the valves' service life, and secures the operational safety of industrial plants. By informing plant operators of any performance impairments or risks of casing damage, the Smart Valve Monitoring System plays a critical role in safeguarding both the infrastructure and personnel within industrial plants.

PERCON - Pneumatic Piston Actuator for Safety-Sensitive Applications

The PERCON pneumatic piston actuator is designed particularly for reliability in safety-sensitive areas such as nuclear technology. Compared to electrical actuators, PERCON systems do not require explosion protection since they operate without electrical components. In case of interrupted control air supply, the actuators can switch to a predefined position allowing manual control if necessary. Its straightforward design and robust construction contribute to its long service life and reduce maintenance costs. Besides the PERCON actuators, Stahl-Armaturen PERSTA GmbH offers valve systems with optional electrical and additional pneumatic actuators that adhere to high reliability standards. The company carefully selects brands that have a proven track record in the market based on their reliability.

PERSTA - Model DPV - Line Blind Valves for System Pressure Testing

The PERSTA DPV line blind valves are engineered for secure and efficient system pressure testing, adhering to stringent regulatory standards. Constructed from forged steel, these valves are designed to withstand rigorous temperature gradients and cyclic loading without significant wear. Their unique pressure-sealing bonnet mechanism enhances leak-proof performance under increasing pressure, following VGB directives. Each valve is customized to integrate seamlessly with the customer's quality assurance protocols and specific inspection and test plans, ensuring reliability and compliance. With no requirement for specialized assembly tools, these valves are made from various high-grade materials, including A182 F22 and A182 F91, and are suitable for media such as water, steam, gas, oil, and other substances. The DPV line blind valves can operate at pressures up to PN 630 and accommodate nominal sizes up to DN 800, with temperature tolerance reaching +650°C, making them versatile for multiple industrial applications.