Flowserve Seals
Flowserve Mechanical Seals at Siewert Equipment
Engineered Sealing Solutions for Pumps, Mixers & Rotating Equipment
Siewert Equipment is proud to distribute Flowserve mechanical seals across Upstate New York, delivering proven performance in demanding fluid handling systems. With an extensive selection of cartridge, component, and engineered seal technologies, Flowserve is a global leader in shaft sealing solutions for industrial, municipal, and process applications.
From split seals to mixer seals, Flowserve products ensure long-lasting reliability, reduce maintenance cycles, and offer exceptional protection against leakage and contamination in pumps, agitators, compressors, and rotating shafts.
What Are Mechanical Seals?
Mechanical seals are precision-engineered devices used to prevent leakage between a rotating shaft and its housing in pumps and other fluid-handling equipment. These seals work by creating a tight seal between two flat, smooth surfaces—usually under pressure—to contain the fluid within the system.
Benefits of Flowserve mechanical seals include:
- Preventing product loss and environmental contamination
- Extending equipment lifespan by blocking contaminants
- Reducing energy consumption and downtime
- Supporting safe operation in hazardous or high-pressure conditions
Depending on the application, Flowserve offers both cartridge seals (easy installation and maintenance) and component seals (flexible, cost-effective configurations). Specialized seals are also available for mixers, split shaft access, and custom-engineered systems.
Backed by Flowserve: A Legacy of Sealing Innovation
Flowserve has been at the forefront of sealing technology for over 80 years. As one of the world’s leading providers of fluid motion and control products, Flowserve combines materials science, precision engineering, and real-world testing to create sealing solutions that reduce operating costs, improve mean time between failure (MTBF), and comply with the most stringent industry regulations.
With global R&D facilities and application expertise across oil & gas, chemical, food & beverage, power generation, and municipal sectors, Flowserve continuously delivers advanced mechanical seal products designed for durability, performance, and sustainability.
Each Flowserve seal is built to provide:
- Long-term reliability in aggressive, abrasive, or corrosive media
- Optimized face designs for reduced friction and wear
- Simplified maintenance and reduced total cost of ownership
- Configurations to fit virtually any OEM rotating equipment
Industries & Applications for Flowserve Seals
- Water & Wastewater Treatment Plants
- Chemical Processing & Petrochemical Plants
- Food & Beverage Processing
- Pulp & Paper Mills
- Power Generation Facilities
- Pharmaceutical & Biotech Manufacturing
- General Industrial and OEM Equipment
- Renewable Energy and Biofuels
Why Choose Siewert Equipment for Flowserve Mechanical Seals?
- Flowserve distributor since 1949 — the year Siewert Equipment was founded
- Deep expertise in pump systems, sealing technology & rotating equipment
- Support with seal selection, sizing & upgrades across all Flowserve lines
- Local inventory and fast turnaround on high-demand products
- On-site troubleshooting, retrofitting & maintenance support
- Preventative maintenance programs and OEM-certified repair services
Flowserve Mechanical Seal Product Line
Bearing Gard™
Static and Dynamic Bearing Protection Seals
- Prevents contaminants from entering bearing housings
- Maintains oil retention and bearing integrity
- Ideal for pumps, motors, and rotating equipment
- Non-contacting design reduces shaft wear and extends bearing life
Pac-Seal™
Single Spring and Elastomer Bellows Mechanical Seals
- Economical, general-purpose component seals
- Compact design ideal for light-duty pumps
- Available in multiple elastomer types for chemical compatibility
- Easy to install and maintain in existing housings
ISC2 Series
Standard Cartridge Mechanical Seals
- Robust, modular cartridge seal platform
- Designed to fit hundreds of pump and mixer models
- Available in single, dual, and double-balanced configurations
- Meets API 682, ISO, and ANSI standards
PSS-4 Split Cartridge Seal
Unitized, Semi-Cartridge Split Seal
- Installs around the shaft without pump disassembly
- Ideal for large, hard-to-access equipment
- Reduces downtime and simplifies installation
- Features positive drive, dual balanced faces, and built-in gland
VRA Series (Durametallic)
Top-Entry, Dry Running Mixer Seals
- Engineered for vertical mixer applications
- Non-contacting design reduces energy use and eliminates seal face wear
- Withstands high shaft movement and runout
- Ideal for tanks, reactors, and blending equipment
Engineered & Custom Seals
Tailored Solutions for Unique Rotating Equipment
- Designed for severe service conditions and non-standard equipment
- Engineered for OEMs, retrofits, and specialty systems
- Available in exotic materials and coatings
Flowserve Diamond™ Coating
Advanced Seal Face Technology
- Reduces operating costs by up to 90%
- Enhances seal face life and chemical resistance
- Ideal for abrasive, corrosive, or high-temperature media
- Improves seal reliability without sacrificing performance
Full-Service Seal Support from Siewert Equipment
We provide complete mechanical seal services for Flowserve customers across Upstate NY:
✔ Mechanical seal selection and sizing
✔ Pump and equipment retrofit support
✔ Installation and on-site technical services
✔ Seal failure analysis and troubleshooting
✔ Local inventory and expedited delivery
✔ Maintenance programs and rebuild kits
Frequently Asked Questions: Flowserve Mechanical Seals
What is the difference between cartridge and component mechanical seals?
- Cartridge seals are pre-assembled and pre-set, making them easier to install and less prone to error. Component seals consist of individual parts and require precise installation, but they offer greater flexibility and lower upfront cost.
Can I install a Flowserve mechanical seal without removing the pump?
- Yes. The Flowserve PSS-4 split cartridge seal is designed for fast, hassle-free installation around the shaft—no need to disassemble large or hard-to-access equipment.
Are Flowserve mechanical seals compatible with pumps from other manufacturers?
- Yes. Flowserve offers a wide range of standard and custom seal configurations that fit pumps and rotating equipment from virtually any OEM.
What materials are used in Flowserve mechanical seals?
- Flowserve seals are available in carbon, silicon carbide, tungsten carbide, 316 stainless steel, Hastelloy, and other corrosion-resistant materials. Many models are also enhanced with Flowserve Diamond™ seal face coatings for increased durability.
Can Flowserve seals be used in abrasive or corrosive environments?
- Absolutely. Flowserve offers chemical-resistant mechanical seals specifically designed for slurry handling, aggressive media, and high-temperature applications.
What’s the advantage of a dry-running mixer seal like the VRA Series?
- Flowserve’s dry-running mixer seals minimize seal face wear and eliminate the need for external lubrication—ideal for top-entry mixers and agitators in chemical and food processing tanks.
How do I choose the right Flowserve seal for my pump or mixer?
- The experts at Siewert Equipment will help you select, size, and specify the most appropriate Flowserve mechanical seal based on your equipment, fluid type, pressure, and temperature conditions.
Do Flowserve seals require regular maintenance or replacement?
- Most Flowserve mechanical seals are designed for extended service life with minimal maintenance. However, periodic inspections and flushing are recommended for wastewater or solids-laden applications.
Are there Flowserve seals that reduce energy consumption?
- Yes. Flowserve offers low-friction seal faces and advanced technologies like non-contacting and dry-running designs that reduce torque, energy loss, and seal wear.
Can I retrofit my existing seal system with Flowserve products?
- Definitely. Flowserve provides a wide range of retrofit-friendly cartridge and split seals compatible with older pumps and legacy equipment—perfect for upgrades and performance improvements.
Your Flowserve Seal Experts in Upstate New York
Siewert Equipment proudly serves as your authorized Flowserve mechanical seal distributor across Rochester, Syracuse, Buffalo, Albany, and all of Upstate NY. From municipal pump stations to pharmaceutical mixers, our team delivers trusted sealing solutions that reduce downtime, boost efficiency, and extend the life of your rotating equipment.
- New York (serving all Upstate NY) through Siewert Equipment, with offices in Rochester, and Albany.
Ready to Upgrade Your Sealing Reliability?
Contact Siewert Equipment today to get expert guidance on Flowserve mechanical seals—from standard cartridges and elastomer bellows to split seals and custom-engineered solutions.
Seal Better. Run Longer. Trust Flowserve.
Partner with Siewert Equipment for local support, superior sealing technology, and the industry’s most reliable mechanical seal solutions.
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