VEE GEE 6168-4762 is the replacement anodized aluminum tension clamp for SIBATA 6168 series filter systems, 47 mm I.D., sold individually. The spring-loaded aluminum clamp with tension screw locks the borosilicate glass funnel (100 mL or 300 mL) to the support base during vacuum filtration, maintaining a secure, leak-free seal under vacuum. The same clamp is used in all four complete 6168 kit configurations — 6168-0001, 6168-0002, 6168-0003, and 6168-0004. Autoclavable. Clamp only — funnel, base, stopper, and filter components sold separately.
Features & Benefits
- Spring-Loaded with Tension Screw — Secure Vacuum Seal: The clamp's spring mechanism provides consistent clamping force around the funnel-to-base junction, while the tension screw allows precise adjustment to achieve and maintain a vacuum-tight seal. This mechanism is critical for preventing air leaks that would reduce vacuum pressure and slow or stop filtration.
- 47 mm I.D. — Designed for the 6168 Series: The 47 mm inner diameter matches the outer diameter of the 6168 series funnel-to-base junction, providing a precise fit for both the 100 mL funnel (6168-47100) and the 300 mL funnel (6168-4711) on either base type.
- Anodized Aluminum — Lightweight, Corrosion-Resistant: Anodized aluminum provides excellent corrosion resistance in wet lab environments while keeping the clamp lightweight. Anodizing creates a hard oxide surface that is chemically resistant to most lab reagents and is compatible with autoclave sterilization.
- Autoclavable at 121°C: The anodized aluminum clamp withstands autoclave sterilization at 121°C (250°F) — sterilize with the rest of the filter assembly between biological samples.
- Universal Across All 6168 Kit Configurations: One clamp SKU covers the entire 6168 series — fits both 100 mL and 300 mL funnels and both fritted glass and SS screen base types.
- SIBATA Precision Manufacturing — Taiwan: Manufactured to SIBATA's precision standards for the 6168 series.
- 1-Year Warranty: Backed by VEE GEE Scientific's standard accessory warranty.
Specifications
| Property | Value |
|---|---|
| SKU | 6168-4762 |
| Description | Aluminum Clamp, Anodized, 47 mm I.D. |
| Material | Anodized Aluminum |
| Inner Diameter | 47 mm |
| Mechanism | Spring-loaded with tension screw |
| Autoclavable | Yes — 121°C (250°F) |
| Used In All Kits | 6168-0001, 6168-0002, 6168-0003, 6168-0004 |
| Compatible Funnels | 6168-47100 (100 mL), 6168-4711 (300 mL) |
| Compatible Bases | 6168-4721 (SS screen), 6168-4722 (fritted glass) |
| Dimensions (L × W × H) | 7.5" × 2.75" × 3.5" (19.1 × 7.0 × 8.9 cm) |
| Quantity | 1 Each |
| Country of Origin | Taiwan |
| Manufacturer | SIBATA Scientific Technology Ltd. |
| Brand | VEE GEE Scientific |
| Warranty | 1 Year |
6168 Series Complete Component Reference
| SKU | Description | Type |
|---|---|---|
| 6168-0001 | Fritted Glass Filter System, 300 mL — Complete Kit | Complete kit |
| 6168-0002 | SS Screen Filter System, 300 mL — Complete Kit | Complete kit |
| 6168-0003 | Fritted Glass Filter System, 100 mL — Complete Kit | Complete kit |
| 6168-0004 | SS Screen Filter System, 100 mL — Complete Kit | Complete kit |
| 6168-47100 | Replacement 100 mL Funnel | Replacement part |
| 6168-4711 | Replacement 300 mL Funnel | Replacement part |
| 6168-4721 | Glass Support Base, for SS Screen | Replacement part |
| 6168-4722 | Fritted Glass Support Base | Replacement part |
| 6168-4731 | Stainless Steel Screen | Replacement part |
| 6168-4741 | PTFE Gasket — Pack of 10 | Replacement part |
| 6168-4751 | No. 8 Silicone Stopper | Replacement part |
| 6168-4762 (this item) | Anodized Aluminum Clamp, 47 mm I.D. | Replacement part |
Frequently Asked Questions
Will this clamp fit both the 100 mL and 300 mL funnels?
Yes. The 6168-4762 clamp fits both the 100 mL funnel (6168-47100) and the 300 mL funnel (6168-4711). The 47 mm I.D. matches the funnel-to-base junction diameter in all 6168 series configurations — the funnel volume does not affect the clamp fitting.
My filtration system is losing vacuum even with the clamp in place — is it a clamp problem?
Vacuum loss at the funnel-to-base junction typically points to one of three causes: (1) a damaged or worn clamp that no longer applies consistent clamping force — if the spring tension has weakened or the tension screw is stripped, replace the clamp; (2) a damaged funnel or base rim where the ground-glass mating surfaces are chipped, which prevents a proper seal regardless of clamping force; or (3) a missing or degraded PTFE gasket in SS screen configurations (6168-4741). If the clamp appears physically intact and applies firm, even pressure, inspect the glass surfaces and gasket first before replacing the clamp.
Ordering
Authorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.