| Parameter |
Value/Description |
Unit/Note |
|
| Model |
QT-604 |
Single-face, balanced cartridge seal |
|
| Seal Type |
Balanced, Spring-Loaded with Bellows |
Self-compensating for shaft movement |
|
| Face Materials |
- Rotating: Silicon Carbide (SiC)
- Stationary: Carbon Graphite (CG) |
SiC for high hardness; CG for low friction |
|
| Housing Material |
Stainless Steel 316L (SS316L) |
Electropolished for corrosion resistance |
|
| Elastomer Material |
Fluororubber (FKM) |
Chemical resistance: pH 2-12; thermal range -20°C ~ 200°C |
|
| Pressure Range |
0 - 2.0 |
MPa |
Max. operating pressure: 20 bar |
| Shaft Diameter Range |
30 mm - 100 mm |
Standard for centrifugal pumps and agitators |
|
| Maximum Rotational Speed |
3600 |
RPM |
Dynamic balance grade: G2.5 (ISO 1940) |
| Temperature Range |
-20°C ~ 200°C |
Metal bellows option extends to 300°C (+$150) |
|
| Leakage Rate |
≤0.8 ml/h |
Meets ISO 21049 Type C standards |
|
| Media Compatibility |
- Oil, Solvents, Mild Acids/Alkalis
- Emulsions with ≤5% solids |
Avoid concentrated sulfuric/nitric acid |
|
| Bellows Material |
Inconel 625 |
Nickel-based alloy for high-strength flexibility |
|
| Spring Design |
Multi-Spring (Stainless Steel 316L) |
Uniform pressure distribution |
|
| Installation Type |
Cartridge-Mounted (Pre-Aligned) |
Reduces installation time by 50% |
|
| Standards Compliance |
ISO 21049, API 682 (Optional Upgrade) |
API 682 compliance adds $200 to base cost |
|
| Weight |
~0.7 kg (for 80 mm shaft size) |
Heavier design for stability at high speeds |
|
Queeny design engineers are able to produce a seals solution for the most basic applications,to those that are extremely complicated and unique. We are able to provide you these solutions supported by life test data and years of excellent field performance.As your partner, we provide sealing solutions for centrifugal pumps,agitators and other rotating equipment, and help you consolidate your brand and market position.
Q1: Are you a trading company or a factory?
We are a factory, so we can offer you factory prices with high quality.
Q2: Can I get samples?
Yes. You can ask for samples. Usually it's free, but you need to pay for shipping.
Q3: Can l use my own logo or design on the goods?
Yes, we provide OEM/ODMservices; your logo and design can be printed on the products.
Q4: What are your payment terms?
We accept T/T, Paypal, Western Union, and credit card payment is also welcome.
Q5: How about the delivery time?
For stock items, we can ship immediately after receiving the payment.
For other products, we need 14-25 days for mass production, which depends on the quantity and type of order.
Q6: How can we ensure the quality?
Pre-production samples are required before mass production;Final inspection is required before shipment;
Q7: 1 can't find our products in your catalog, can you customize the products for us?
Yes, customized products are available, OEM is welcome.
Q8: Can l buy pumps or pump parts from your company?
Yes, we also provide pumps and pump parts.
The Type 604 is a high-temperature, general-purpose, stationary edge-welded metal bellows assembly for applications to 425C/800F. Available in either AM350 or Alloy 718, its high-strength design provides maximum reliability. The stationary bellows design accommodates high shaft-to-seal-chamber misalignment. Unlike rotating seals that must flex on every revolution to accommodate shaft-to-seal-chamber misalignment, the stationary Type 604 adapts to this condition by flexing only once during installation. This reduces seal movement, resulting in increased seal life. Typical applications include hot hydrocarbons, aqueous solutions, aromatic fractionation products, crude oil fractionation products and heat transfer fluids.
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