About CHANGSHA RUNDA HITECH
CHANGSHA RUNDA HITECH CO., LTD. is a Chinese supplier and sourcing partner for instrumentation valves, tube fittings, pressure regulators, filters, quick connectors and hose assemblies, sold under the product brand R-LOK. The company has worked from Changsha, Hunan since 2006, serving oil & gas, petrochemical, semiconductor, new energy and pharmaceutical projects, with working pressures quoted up to 6,000 psi (413 bar).
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Key features
- Supplier and sourcing partner, trading from Changsha, Hunan since 2006.
- Product brand R-LOK covers valves, fittings, regulators, filters, connectors and hose assemblies.
- Needle, ball, gauge, manifold, check, plug, purge, bleed, safety and UHP diaphragm valves.
- Double-ferrule, threaded and high-purity weld tube fittings from 1/16 in (1.6 mm).
- 316 and 316L stainless steel standard; other alloys quoted for corrosive duty.
- Up to 6,000 psi (413 bar) on the smaller sizes and metal-seated designs.
Specifications
| Parameter | Value |
|---|---|
| Legal name | CHANGSHA RUNDA HITECH CO., LTD. |
| Product brand | R-LOK |
| Established | 2006 |
| Role | supplier and sourcing partner, not a manufacturer |
| Product scope | instrument valves, tube fittings, pressure regulators, filters, quick connectors, hose assemblies |
| Materials | 316 / 316L stainless steel standard; other alloys quoted on request |
| Size range | 1/16 in to 1 in (1.6-25.4 mm) tube OD, by family |
| Working pressure | up to 6,000 psi (413 bar) in the smaller sizes |
Range and materials
RUNDA HITECH trades from Building 3, Zone C, Xianghu 1st Village, Wanbao Avenue, Xianghu Street, Furong District, Changsha, Hunan, China. The company is a supplier and sourcing partner for instrumentation products, not a production plant. It exports worldwide.
The range covers needle, ball, gauge, manifold, check, plug, purge, bleed, safety and relief, and ultra-high-purity (UHP) diaphragm valves, with pressure regulators, filters, quick connectors and hose assemblies. Bodies and wetted parts are normally 316 or 316L stainless steel; other alloys are quoted on request.
Fittings, sizes and connections
Tube fittings cover double-ferrule, threaded and high-purity weld types, in sizes from 1/16 in (1.6 mm) to 1 in (25.4 mm) tube outside diameter depending on family. End connections include NPT, BSPP/BSPT, ISO and weld ends.
Each item is quoted with its own thread standard, so the connection matches the mating part on the drawing. Working pressure is stated per item: smaller sizes and metal-seated designs reach 6,000 psi (413 bar), while larger bodies, softer seats or threaded ends reduce it.
Where it is used
RUNDA HITECH ships to the Middle East, Central Asia, Southeast Asia and Africa, and serves oil & gas, petrochemical, semiconductor, new energy and pharmaceutical projects, maintenance and spare parts included: instrument air, sampling, impulse line, gas panel and utility stations.
Send your list, drawing or datasheet to nimo@runda-hitech.com, or call or message +86 136 5741 6007. RUNDA HITECH replies in English and quotes item by item, with the data needed to check the selection against your specification.
Standards referenced: NPT threads per ASME B1.20.1; BSPP and BSPT per ISO 228-1 and ISO 7-1.; Ratings quoted with reference to ASME B31.3; the figure quoted for the ordered item governs.; Mill material certificates issued to the applicable ASTM standard, such as A276 or A479..
Typical duties: Oil & gas instrument air and sampling lines; Petrochemical and refining process instrumentation; Semiconductor and ultra-high-purity gas panels; New energy: hydrogen, LNG and battery material skids; Pharmaceutical and bioprocess clean utility lines; Panel, manifold and skid builds for EPC contractors.
Frequently asked questions
Do you manufacture the products you sell?
No. RUNDA HITECH is a supplier and sourcing partner. The company selects the correct item from its supply base, consolidates it with the rest of your order, and takes responsibility for the specification, the documents and the delivery.
What do you need in order to quote?
A model number is enough if you have one. Otherwise send the duty conditions: line or tube size, thread or end connection, material, working pressure, temperature, medium and quantity. Drawings or datasheets confirm the interface before you commit.
Which documents come with the shipment?
Material certificates and dimensional inspection reports are supplied with every shipment, together with the commercial invoice, packing list and certificate of origin. Third-party inspection and destination-specific documents can be arranged when your customs authority or specification requires them.
Request a quote or technical clarification
Send us the model, size, material and quantity you need — or a photo of the existing part. We reply with a quotation, availability and the applicable documents, usually within one working day.
Tel / WhatsApp: +86 136 5741 6007 · Email: nimo@runda-hitech.com