Buyers in China use Samvay needle valves across petrochemicals, LNG receiving and power, all machined and tested at our Ahmedabad works. International EPC projects in China often specify certified alloy needle valves from qualified exporters like us.
A needle valve uses a fine tapered stem to throttle or isolate small flows with precise control, which makes it the standard choice for isolating gauges, transmitters and sampling points. In China the typical service is large scale petrochemical and coastal service, so grade selection and documentation matter as much as price. Every order ships with heat traceable material and a test record.
Needle Valves for industries in China
Double block isolation of instruments on hydrocarbon lines during calibration.
Double block isolation of instruments on hydrocarbon lines during calibration.
Gauge and transmitter isolation on high temperature steam lines.
Precise dosing and isolation on reactor instrumentation.
Choosing the right grade in China
Service conditions in China usually mean large scale petrochemical and coastal service. These are the grades we most often supply for that duty.
| Recommended grade | Why it suits China |
|---|---|
| Super duplex 2507 or S32760 | High chloride air and seawater, where PREN above 40 resists pitting and crevice corrosion |
| Hastelloy C276 or Monel 400 | Aggressive acids, chlorinated media and effluent where stainless steel would pit |
| SS 316H or alloy steel F11 and F22 | High temperature steam service, supplied with IBR documentation where required |
Needle Valves specifications
| Thread | NPT PT BSPP G |
| Size | 1/2″ to 4″ (DN15 to DN100) |
| Function | 4 Way, 3 Way, 2 Way, 5 Way, |
| Connection | Welded, Socket, Clamped, Flanged, Threaded |
| Pressure Class | 3000PSI, 5000PSI |
| Pressure Rating | 3000 PSI, 1500 PSI, 6000 PSI |
Needle Valves we supply in China
Standards and documents for projects in China
- ASME B31.3
- NACE MR0175
- EN 10204 3.1
- Positive material identification and hydrostatic test reports on request
- Packing lists, origin certificates and HS code 73072900 or 84818030 on every invoice
Delivery to China
We deliver by sea from Mundra or Nhava Sheva to Shanghai or Ningbo in about 14 to 18 days. Our regular delivery points include:
- Shanghai
- Ningbo
- Huizhou
- Tianjin
Frequently asked questions
Which material grade do you recommend for projects in China?
For high chloride air and seawater, where PREN above 40 resists pitting and crevice corrosion, we usually recommend Super duplex 2507 or S32760. Where conditions are milder, Hastelloy C276 or Monel 400 is a cost effective alternative. Share your process data and we will confirm the grade before quoting.
How do needle valves reach China from India?
Yes. We ship by sea from Mundra or Nhava Sheva to Shanghai or Ningbo in about 14 to 18 days. Regular consignments reach Shanghai, Ningbo, Huizhou and Tianjin, and mixed orders of valves, fittings and accessories can be consolidated into one shipment with a single set of documents.
What certificates come with orders for China?
Orders for China are supplied to ASME B31.3, NACE MR0175 and EN 10204 3.1. Every part is heat marked and traceable to its mill certificate, and third party inspection by the agency of your choice can be arranged before dispatch.
What pressure ratings and end connections are available?
Our needle valves are rated at 1500, 3000 and 6000 psi, in sizes from 1/2 inch to 4 inch (DN15 to DN100), with NPT, PT and BSPP threads or socket weld, flanged and clamped ends. Two way, three way, four way and five way patterns are available, so one supplier can cover root valves, gauge isolation and manifold duties on the same project in China.
How do I request a quote for China?
Email your item list with sizes, grade, quantity and delivery point to sales@samvayglobal.com or message us on WhatsApp at +91 77389 26862. We reply within one working day with price, lead time and shipping terms for China.