Ball valves
Quarter-turn isolation with a spherical closure. Common in on/off service. Soft-seated and metal-seated variants serve different temperature, pressure and solids handling needs.
Capability 01 路 Flow control
Valves & flow control, sourced to your duty conditions.
Valves are rarely interchangeable. A valve that suits one line may fail early, leak, or be impossible to maintain in another. We help buyers turn a duty condition into a clear sourcing brief, then coordinate supplier options around that brief.
Overview
The sourcing context.
Our role is not to publish a catalogue or promise a particular brand. It is to help you compare relevant valve types, materials, connections, actuation and documentation before commercial terms are agreed.
This page is a capability guide, not a product listing. It 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
8 families- Ball valves
- Gate valves
- Globe valves
- Butterfly valves
- Check valves
- Control valves
- Valve accessories
- Actuated valve packages
We support common industrial valve families and related accessories. Special service conditions, exotic materials and fire-safe or fugitive-emission requirements need to be stated explicitly in the inquiry.
Product families
Common types and what distinguishes them.
Gate valves
Linear-motion isolation valves with low pressure loss when fully open. Usually selected for isolation rather than throttling, with rising or non-rising stems and a range of bonnet designs.
Globe valves
Linear-motion valves suited to throttling and regulating service. Their flow path produces a higher pressure drop than a gate or ball valve, so sizing and trim selection matter.
Butterfly valves
Compact quarter-turn valves available in wafer, lug and double-flanged bodies. Seat material, shaft design and pressure class determine whether a given design suits the application.
Check valves
Non-return valves that protect pumps and process lines from reverse flow. Swing, lift and dual-plate designs have different installation, pressure-loss and maintenance characteristics.
Control valves
Modulating valves with pneumatic, electric or hydraulic actuation. Correct selection depends on flow coefficient, pressure drop, medium, fail position and control signal.
Valve accessories
Actuators, gear operators, positioners, solenoids, limit switches, strainers and mounting kits. Accessory compatibility is part of the valve specification, not an afterthought.
Specifications vary by model and supplier; all technical data is subject to confirmation upon inquiry.
Materials & 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.
- Body materials
- Carbon steel (for example WCB), stainless steels such as CF8/CF8M (cast 304/316 family), cast iron, ductile iron, bronze, and selected alloy or duplex grades. Exact grade must be confirmed for the service.
- Trim and seals
- Stainless steel, hard-faced or stellite-trim options; PTFE, RTFE, PEEK, EPDM, NBR and metal seats. Seal choice depends on temperature, chemical compatibility and cycle frequency.
- Pressure classes
- Common nominal ratings include PN10, PN16, PN25, PN40, Class 150, Class 300 and higher classes. The applicable rating must match the flange standard and design code.
- Connections
- Flanged, threaded, socket-weld, butt-weld, wafer and lug connections. Face-to-face dimensions, flange drilling and end standard need to agree across the line.
- Actuation
- Manual lever or handwheel, gear operation, pneumatic or electric actuation. Confirm supply voltage, air pressure, control signal, fail-safe position and required accessories.
- Documentation
- Material certificates, pressure test reports, dimensional drawings, nameplate details and compliance documents can be requested where the supplier and application require them.
Applications
Where these products are typically used.
- 01Oil, gas and petrochemical process lines
- 02Water treatment and distribution
- 03Power generation and utilities
- 04Chemical and pharmaceutical plants
- 05HVAC and building services
- 06Marine and offshore support systems
Application examples are illustrative. Suitability depends on the complete system design, operating conditions and applicable standards.
Before you buy
Purchasing considerations.
Define the medium, not only the product name
Media, concentration, solids content, temperature and pressure determine body material, seat material and valve type. “Stainless ball valve” alone is not a complete specification.
Confirm the dimensional standard
A valve that matches the process duty can still fail at installation if face-to-face length, flange drilling or end connection does not match the line standard.
Decide how the valve will be operated
Manual operation, actuation, fail position and accessory compatibility should be settled before quotations are compared. Retrofitting actuation later can change the total cost significantly.
Ask what will be documented
For critical service, confirm material traceability, pressure testing, marking and inspection records in the inquiry. Not every supplier or product family offers the same documentation package.
Compare like with like
Price differences often reflect body material, trim, seat, actuation, test standard or documentation. A comparison that ignores these variables is not a useful commercial comparison.
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 valves & flow control.
Can you help choose the right valve type?
We can help structure the requirement and identify the information a supplier will need. Final technical selection should be confirmed against the applicable design code and, where required, by a qualified engineer.
Do you supply valves with material certificates?
Documentation requirements vary by supplier and order. We can include the requested certificate package in the inquiry and confirm what is available before the order is placed. We do not promise certificates that a supplier has not confirmed.
Can you source actuated valve packages?
Yes. We can coordinate valve, actuator and accessory suppliers or look for an integrated package, depending on the specification and the responsible scope of supply.
Are prices shown on this website?
No. Valve pricing depends on size, pressure class, material, actuation and quantity. We coordinate project-specific quotations rather than displaying unverified list prices.
What information should I include in an RFQ?
Start with the valve type, size, pressure rating, connection standard, body and trim material, medium, temperature, quantity and destination. Drawings, data sheets and required standards can be added in the optional fields.
Next step
Need to source valves & flow control 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.