Mechanical & oil seals
Rotating equipment seals and oil seals. Shaft diameter, housing bore, width, material and operating conditions determine the replacement.
Product group 05 · Sealing & connections
Sealing, pipe fittings and industrial connections, matched to the interface.
Seals and connections succeed or fail at the interface. Dimensions, materials, pressure, temperature, media and mating surfaces all need to agree. Send the drawing, sample or equipment details and we will help define the supply request.
Overview
Product overview.
This category combines sealing products with pipe fittings, flanges and connection components. Available options include standard items and customized specifications, subject to supplier confirmation.
This page explains the common product families, the information a supplier needs and the purchasing questions worth resolving before an order. Specifications vary by model and supplier; all technical data is subject to confirmation upon inquiry.
Product scope
22 families- Mechanical seals
- Oil seals
- O-rings
- Rubber seals
- Industrial gaskets
- Rubber gaskets
- Metal gaskets
- Hydraulic seals
- Pneumatic seals
- Pipe fittings
- Stainless steel fittings
- Carbon steel fittings
- Flanges
- Elbows
- Tees
- Reducers
- Hydraulic fittings
- Pneumatic fittings
- Hose connectors
- Quick couplings
- Flexible joints
- Industrial connections
Seal and fitting dimensions are product-specific. The applicable standard, material, pressure rating and mating interface must be confirmed rather than inferred from a photo.
Product families
Common types and what distinguishes them.
O-rings & rubber seals
Standard and custom moulded seals. Compound, hardness, temperature, media and groove dimensions must be specified.
Industrial gaskets
Sheet, spiral-wound, ring-joint and metal gaskets. Flange standard, pressure class, temperature and medium drive the selection.
Pipe fittings
Elbows, tees, reducers, caps, couplings and nipples in stainless or carbon steel. Schedule, end preparation and dimensional standard must match.
Flanges
Weld-neck, slip-on, blind, threaded and lap-joint flanges. Pressure class, facing, bore and drilling standard determine compatibility.
Hydraulic & pneumatic fittings
Hose ends, adapters, quick couplings and pneumatic fittings. Thread, seal type, pressure rating and hose compatibility are critical.
Flexible joints & connectors
Expansion joints, flexible couplings and specialty connections for movement, vibration or alignment.
Specifications vary by model and supplier; all technical data is subject to confirmation upon inquiry.
Custom requirements
Standard product not enough?
Available supply options may include standard products and customized specifications, subject to project requirements. Share a drawing, sample or performance requirement and we will review suitable manufacturing and supply options.
Discuss Custom RequirementsMaterials & standards
The details that change the quote.
The ranges below are common industry references, not a statement of stock or supplier capability. The applicable grade, standard and test requirement must be confirmed for the specific inquiry.
- Seal materials
- NBR, EPDM, FKM, PTFE, silicone, polyurethane and selected compounds. Media, temperature and pressure determine compatibility.
- Metal materials
- Stainless steel, carbon steel, brass, copper alloys and selected grades. Corrosion resistance and pressure class must be confirmed.
- Dimensions
- Shaft, bore, flange, thread and face-to-face dimensions. A sample or drawing is the most reliable reference.
- Pressure and temperature
- Operating pressure, temperature range, cycling and vacuum service. The seal or connection must be rated for the actual condition.
- Standards
- DIN, ANSI/ASME, JIS, ISO, SAE or equipment-specific interfaces. The applicable standard should be stated, not assumed.
- Documentation
- Material certificates, dimensional drawings and test reports can be requested where available and confirmed by the supplier.
Applications
Where these products are typically used.
- 01Pumps, valves and rotating equipment
- 02Process piping and skid assembly
- 03Hydraulic and pneumatic systems
- 04Water and wastewater plants
- 05Chemical and petrochemical service
- 06Maintenance and replacement programs
Application examples are illustrative. Suitability depends on the complete system design, operating conditions and applicable standards.
Before you buy
Purchasing considerations.
Identify the interface
A seal or fitting is only correct when the mating dimensions and surface conditions are known. Photos alone are rarely sufficient.
Check material compatibility
The seal compound or metal grade must suit the medium, temperature and pressure. A generic “rubber” or “stainless” description is not enough.
Confirm the standard
Flange drilling, thread type, pressure class and face-to-face dimensions must match the adjacent component.
Plan the replacement
For maintenance items, confirm the equipment model and original part reference where possible. A sample can reduce ambiguity.
How we help
Supplier discovery and quotation coordination.
- 01
Requirement review
Clarify the specification, quantity, destination and documentation needs.
- 02
Supplier shortlist
Identify relevant suppliers and confirm basic fit before requesting offers.
- 03
Comparable quotations
Collect offers on a consistent basis and surface technical or commercial gaps.
- 04
Decision support
Give you a structured view so your team can approve the next step.
FAQs
Common questions about sealing & industrial connections.
Can you identify a seal from a sample?
A sample is the best reference. Dimensions, material markings, equipment details and operating conditions help confirm a suitable replacement.
Can you supply pipe fittings and flanges together?
Yes, where the standard, material, schedule and quantity are clear. We can coordinate fittings, flanges and gaskets as a single requirement.
Can you supply custom gaskets or seals?
Custom dimensions and compounds can be explored subject to tooling, minimum quantity and material availability. A drawing or sample is required.
Do you guarantee a seal will not leak?
No. Leak-free operation depends on correct selection, installation, surface condition and operating conditions. We help define the requirement; final fitness should be confirmed by the responsible engineer.
What information is needed for a quotation?
Provide dimensions, material, pressure, temperature, medium, standard, quantity and destination. Add a drawing, photo or original part number if available.
Piping and connections
The interfaces behind a reliable line.
Fittings, flanges, gaskets and valves meet at the same connection. We help buyers define the dimensional standard, material and pressure class before quotations are compared.
Pipe and connection context
Stock, cut length and connection readiness.
Pipe size, schedule, end preparation and quantity affect what can be supplied and how it is packed. Share the line data or a sample and we will confirm the practical option.
Next step
Need to source sealing & industrial connections from China?
Send the product type, specification and quantity. A short description is enough to start; a drawing or data sheet helps us ask better questions.