HPLC CONSUMABLES & HARDWARE
HPLC Fittings and Connectors
Stainless steel and PEEK unions, tees, crosses and adapters for HPLC / UHPLC tubing and column connections. Match thread, pressure class and material to your flow path, then request a quote with sizes.
SS & PEEK options
Unions / tees / adapters
HPLC & UHPLC paths
OEM sizes on request
What These Fittings Are For
HPLC fittings and connectors join tubing, columns, detectors and valves into a leak-tight flow path. Choose stainless steel for high-pressure UHPLC routes and PEEK where chemical compatibility or lower-pressure fingertight connections are preferred.
Related hardware: capillary tubing, empty HPLC columns, and inline filters.
Fitting & Connector Options
Product photos below are from the previous fittings page. Send thread size, material and quantity with your RFQ.
Stainless Steel Unions, 4-way Tees (High-Pressure UPLC)
High-pressure stainless connections for UPLC / UHPLC paths.
Stainless Steel Straight Union / PEEK Top Connector
Straight union hardware for UHPLC systems.
Stainless Steel HPLC Adapter
Adapters for high-pressure HPLC connections.
Stainless Steel Straight HPLC Union
Straight union for high-pressure HPLC systems.
PEEK Unions and Crosses (3-way)
PEEK union / cross hardware for HPLC connections.
PEEK Unions and Tee (3-way)
PEEK tee configurations for HPLC tubing.
PEEK Straight Union for Low-Pressure Tubing
Straight PEEK union for lower-pressure PEEK tubing routes.
PEEK Adapter (UNF 10-32 Internal to M8×1.0)
Thread adapter option listed on the previous fittings page.
PCTFE HPLC Adapter
PCTFE adapter hardware for selected HPLC connections.
Common Fitting Types
General selection guide from the previous page. Confirm pressure rating and thread form against your system before ordering.
| Type | Description | Popular sizes |
|---|---|---|
| Fingertight | Hand-tightened, typically PEEK, lower pressure | 1/16″, 1/8″, 1/4″ |
| Swagelok-type | Wrench-tightened, high-pressure routes | 1/16″, 1/8″, 1/4″ |
| Flangeless | Connects columns to other components | Varies by column |
| Column connectors | Column-to-system connectors | Varies by column / detector |
How to Choose
- Match material and dimensions to your tubing and column ports.
- Confirm the pressure rating for the application (HPLC vs UHPLC).
- Check chemical compatibility with the mobile phase.
- Prefer low-leakage connections for trace work.
- Send thread drawing or existing part number when requesting OEM sizes.
Also see OEM & custom and HPLC capillary tubing.
FAQ
What information do you need for a fittings quote?
Material (SS / PEEK / PCTFE), thread or adapter size, pressure class, quantity, destination country, and any OEM drawing or competitor part number. Name and work email are enough to start.
What is your minimum order quantity (MOQ)?
MOQ depends on the fitting type and whether the size is standard or custom. Tell us the part and quantity you need; we will confirm MOQ and unit pricing on the quote.
Do you offer OEM / private-label fittings?
Yes. We support OEM sizes, private labeling and drawing-based adapters. See OEM & custom or send a sketch with your RFQ.
Can you match a competitor part number?
Often yes. Send the brand, part number, photo or dimension sketch. We will confirm thread form, material and pressure rating before quoting a substitute.
What lead time should purchasing plan for?
Stock items typically ship faster; custom threads or special materials need longer. Include your required delivery date in the quote form so we can confirm a realistic schedule.
Which payment and Incoterms do you support?
Common options include T/T and other terms agreed on the proforma. Incoterms (for example EXW / FOB / CIF) are confirmed case by case with destination and freight preference.
Do you provide COA, material certificates or RoHS statements?
Material certificates and compliance documents can be provided on request for procurement and QC files. List the documents you need in the RFQ message.
When should we choose PEEK vs stainless steel for purchasing?
Buy stainless steel for high-pressure UHPLC routes. Choose PEEK for lower-pressure or chemically preferred fingertight paths. Confirm both pressure rating and solvent compatibility before issuing a PO.
Can we order mixed SKUs in one shipment?
Yes. You can combine unions, tees, adapters and related tubing items in one order. List each SKU and quantity so we can consolidate packing and freight.
Do you support sample orders before a bulk PO?
Sample or small trial quantities are available for many standard fittings. Ask for sample pricing and air freight options in the quote form.
How are fittings packed for export?
Parts are packed to protect threads and sealing faces for air or sea shipment. Special labeling or customer part codes can be added for warehouse receiving.
Who should I contact for a formal quotation?
Use the form on this page or email [email protected]. Include company name, destination and required delivery window for a commercial quote.
Need the right connection?
Request a Fittings Quote
Name, email and a short message are enough. Include material, thread size, quantity and destination if you have them.
Helpful to include:
- Material (SS / PEEK / PCTFE)
- Thread or adapter size
- Quantity and destination
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