Reliable Armstrong Pump Seal Solutions by TRISUN
TRISUN's Armstrong pump seal solutions are designed to deliver superior sealing performance and durability for Armstrong pump systems. Manufactured with high-quality materials, these seals ensure reliable operation by preventing leaks and minimizing wear on critical engineer pump components. Each seal kit is made to withstand demanding conditions, offering excellent resistance to temperature variations, pressure fluctuations, and corrosive environments. By using TRISUN's Armstrong pump seal, industries can enhance pump efficiency, reduce maintenance costs, and extend the lifespan of their equipment.

Precision-Engineered for Seamless Installation
For seamless installation and long-lasting performance, TRISUN provides a comprehensive seal kit that ensures compatibility with various Armstrong pump models. These seals are designed for optimal sealing efficiency, reducing downtime and improving overall system reliability. Whether used in HVAC, water treatment, or industrial applications, TRISUN's solutions help maintain a leak-free and efficient pump system.

Custom Solutions for Specialized Applications
TRISUN also offers custom options tailored to unique application needs. Whether your system handles aggressive fluids, extreme pressures, or unusual operating conditions, TRISUN's engineering team can modify seal face materials, spring designs, and elastomer configurations to meet your exact requirements. This customization ensures that your pump operates at peak efficiency, even in non-standard environments.

Built to Withstand Industrial Demands
TRISUN's Armstrong mechanical seals are built for performance in tough industrial environments. These seals are rigorously tested to ensure durability under constant flow, temperature stress, and pressure cycling—ideal for commercial buildings, district energy systems, and process industries. Their robust construction helps reduce unscheduled maintenance and ensures operational continuity in mission-critical systems.

Engineered for Energy Efficiency and Operational Savings
By maintaining a tight seal and reducing energy losses from leakage or friction, TRISUN's pump seals contribute significantly to system efficiency. The precision-fit components reduce mechanical wear, helping pumps operate within their optimal performance range. In energy-intensive systems such as heating, cooling, and industrial fluid transfer, using TRISUN seals can result in measurable energy savings and lower operational costs over time.

Trusted Across Multiple Industries
TRISUN Armstrong pump seals are trusted by professionals in industries ranging from commercial HVAC to wastewater treatment and food processing. Their versatility, reliability, and adherence to industry standards make them a preferred choice for facilities requiring consistent fluid handling performance. Each seal is backed by TRISUN's quality assurance processes, ensuring every unit meets rigorous safety and efficiency benchmarks before deployment.

Expert Support and Seamless Ordering
To help clients choose the right seal configuration, TRISUN offers expert support with technical consultation and model compatibility checks. Whether you're upgrading aging components or specifying seals for a new project, TRISUN's knowledgeable team ensures you get the exact fit. With fast turnaround times and worldwide delivery capabilities, TRISUN makes it easy to access premium Armstrong pump seal solutions wherever you operate.


TS ST Seal (TRISUN) vs Standard Seals – Feature Comparison

Applications – Where the Armstrong Pump Seal TS ST Excels

The TS ST Armstrong pump seal is engineered for demanding industrial and commercial environments. It is ideally suited for:
•    HVAC Systems: Ensures long-lasting sealing in Armstrong pumps handling chilled water loops, hot water, and condensate return lines.
•    Heating Plants: Provides superior resistance to high temperatures and pressure in boiler feed and circulation pumps.
•    Industrial Fluid Transfer: Reliable sealing solution for Armstrong pumps used in process water, cooling towers, and glycol systems.
•    Municipal and Commercial Buildings: Trusted in Armstrong pump setups for building water supply, pressure boosting, and secondary loops.
Whether you're maintaining a high-rise HVAC system or optimizing industrial water movement, the TS ST Armstrong pump seal delivers performance, compatibility, and durability where it counts most.

How to Install and Maintain a TS-ST Armstrong Pump Seal

Step 1: Inspect Pump Components

·        Examine the pump shaft and housing for wear, scoring, or damage.

·        Ensure surfaces are smooth to support proper seal installation.

Step 2: Clean and Lubricate

·        Clean all mating surfaces thoroughly.

·        Apply a compatible lubricant to elastomer components to prevent pinching or damage during installation.

Step 3: Align Seal Faces

·        Carefully align the rotary and stationary seal faces to avoid misalignment, which can cause leaks or premature wear.

Step 4: Install the TS-ST Seal

·        Slide the seal gently into the pump assembly; do not force it.

·        Ensure the seal sits flush and is fully seated according to manufacturer specifications.

Step 5: Tighten Gland Bolts

·        Evenly tighten all gland bolts using a calibrated torque wrench.

·        Rotate the pump shaft by hand to verify smooth movement and correct installation.

Step 6: Routine Maintenance Checks

·        Inspect seals for leakage, wear, or deformation every 3–6 months.

·        Replace seals showing surface erosion, elastomer hardening, or extrusion.

·        Confirm that the seal material is compatible with the pumped fluid and operating temperature to ensure longevity.

Frequently Asked Questions 

Q1: What is the TS-ST seal, and which Armstrong pumps is it compatible with?
ANS: The TS-ST is a high-performance mechanical seal designed as a direct replacement for seals used in Armstrong inline circulator and booster pumps. It is compatible with models like the Armstrong 4030, 4380, and 4360 series. Its durable construction ensures optimal sealing in HVAC, chilled water, and hot water circulation systems.

Q2: What materials are used in the TS-ST mechanical seal?
ANS: The TS-ST seal typically includes carbon vs. ceramic or carbon vs. silicon carbide seal faces, EPDM or Viton elastomers, and stainless steel hardware. This combination provides excellent chemical resistance, high-temperature tolerance, and long service life, even in demanding HVAC or hydronic systems.

Q3: Is the TS-ST seal easy to install in Armstrong pumps?
ANS: Yes, the TS-ST seal is designed for easy, drop-in installation. It eliminates the need for pump modifications and is ideal for both OEM replacements and maintenance retrofits. Clear alignment and robust design help reduce installation errors and downtime.

Q4: Does TRISUNLtd offer technical support or guidance for TS-ST installation?
ANS: Absolutely. TRISUNLtd offers technical support, installation guidance, and after-sales assistance for all mechanical seals, including the TS-ST. Our engineering team can help ensure proper fit, material compatibility, and long-term performance for your specific Armstrong pump model.