FAQ - Frequently Asked Questions
1. What are mechanical seals, and what are they used for?
Mechanical seals are essential components used to prevent fluid leakage in rotating equipment such as pumps, compressors, and agitators. They work by maintaining a tight seal between a stationary and a rotating surface, ensuring reliable operation in high-pressure, high-temperature, and corrosive environments. At Sakowitz, we specialize in standard and custom mechanical seals for industries like oil & gas, water treatment, power generation, and chemical processing.
2. What materials and specifications do your mechanical seals have?
We manufacture high-performance mechanical seals using premium materials, including:
• Silicon Carbide (SiC) – High wear and corrosion resistance
• Tungsten Carbide (TC) – Suitable for high-temperature and high-pressure applications
• Ceramic (Alumina, Zirconia) – Excellent chemical stability
• Stainless Steel (SS304, SS316, SS316L) – Corrosion-resistant for multiple industries
• Elastomers (Viton, EPDM, PTFE) – Enhancing sealing performance
We also provide customized mechanical seals according to international standards like API 682, DIN 24960, and ISO 3069.
3. How do you ensure the quality of your mechanical seals?
Quality is our top priority. To ensure reliable and high-performing mechanical seals, we implement:
• Strict material inspection (using spectrometer analysis and hardness testing)
• ISO 9001 Certified quality control system
• 100% quality testing before shipment
• Optional third-party testing (SGS, TÜV, BV)
• Comprehensive inspection reports for every batch
For large orders, we can also provide customized quality inspection services based on client requirements.
4. What is your ordering process, and how can international customers place an order?
Our order process is simple and efficient:
1. Inquiry Submission – Send us your requirements via website contact form, email, or WhatsApp/WeChat.
2. Quotation & Confirmation – We will provide a detailed quotation within 24 hours, including product specifications, quantity, and delivery time.
3. Sample Confirmation (Optional) – For bulk orders, we can provide samples for testing before final production.
4. Payment – We only accept T/T (Telegraphic Transfer) payments.
5. Production & Quality Inspection – Your order enters the production phase, followed by a strict quality control process.
6. Shipping & Delivery – We arrange global shipping via DHL, FedEx, UPS, air freight, or sea freight based on your preference.
Lead Time:
• Standard Models: 3-7 days
• Custom Designs: 15-30 days (depending on quantity and specifications)
5. What shipping methods do you offer, and how long does delivery take?
We provide global shipping services with multiple options:
• Express Delivery (DHL, FedEx, UPS, TNT) – 5-10 days for urgent orders
• Air Freight – 7-15 days, suitable for medium-sized shipments
• Sea Freight – 20-45 days, recommended for bulk orders
Shipping times vary based on destination and logistics availability. We work with trusted international freight partners to ensure secure and timely delivery.
If you have specific shipping preferences, please let us know during the ordering process.