Investment Casting + CNC Machining

Reliable Stainless Steel Fittings
and Ball Valves Manufacturer

We manufacture stainless steel fittings, ball valves, flanges, and OEM metal parts in 304 and 316 grades — investment casting + CNC machining, BSP / NPT threads, no MOQ. Supplying importers and distributors worldwide since 2004.

Online Support — 24/7 After-Sales Support
No MOQ — Single Orders Over $15,000
Free Samples — Available for Standard Items
OEM — Custom from Drawings, Tubing & Castings
Online Support — 24/7 After-Sales Support
No MOQ — Single Orders Over $15,000
Free Samples — Available for Standard Items
OEM — Custom from Drawings, Tubing & Castings

Ball Valves

Stainless Steel Various styles

Threaded Fittings

Stainless Steel 150LBS Accessories

Hydraulic Fittings

Stainless Steel 3000LBS Accessories

Other Steel Fittings

Stainless Steel Various styles

Who We Are

Since 2004, JINSON Fittings has provided the highest quality custom industrial fittings & ball valves for a wide range of industries.

Built on Manufacturing
Driven by Trust

From standard stainless steel fittings to OEM parts based on drawings or samples,
we provide practical solutions backed by real production capability.

A Typical Day at the Factory

We believe in transparency, the photos below offer a closer look at our equipment, workshop environment,
and processing capability that support stable production and reliable quality.

More Than Products
We Deliver Confidence

At JINSON, we believe manufacturing is not only about making parts, but about building trust through every detail. Stable quality, clear communication, and practical solutions are always at the heart of our work.

From stainless steel fittings and ball valves to OEM projects based on drawings or samples, we are committed to providing reliable products and long-term support for every customer we work with.

Mr. Gary Quan
CEO of JINSON Fittings

Casting Shop

(01)

Our investment casting workshop handles full-process production in-house — from wax injection and shell building to dewaxing and pouring. This ensures dimensional consistency and surface quality from the very first batch.

Indexing Chuck

(02)

Our CNC lathes with indexing chucks allow precise multi-face machining in a single setup — reducing tolerance errors and shortening lead times for complex thread and fitting geometries.

Automatic CNC

(03)

Our automatic CNC machining lines run continuous production with minimal manual intervention — maintaining consistent tolerances across large batches while keeping delivery schedules reliable.

After Sales Service

(04)

We follow up on every shipment and respond to quality claims within 24 hours. From replacement parts to root-cause analysis, our after-sales process is built to protect your production schedule.

Personalize Your Ball Valves

Find Your Ideal Type

For our regular products, we also provide bespoke services — whether for the product itself or its packaging.

Using the 3-piece ball valve handle as an example:

Standard Custom Color Custom Logo / Text

Default stainless steel finish. Handle color and body markings follow standard production specifications — ready to ship from stock.

Request This Option →

Handle color customizable — popular for brand consistency or pipeline color coding. Available in most RAL colors at no significant tooling cost.

Request This Option →

Laser engraving or pad printing available on handle or body. Your logo, model number, or custom text. Minimum quantity may apply.

Request This Option →
Standard 3-piece ball valve Custom color ball valve Custom logo ball valve

Ask Us Anything

01. What's the MOQ?+
We do not have a strict minimum order quantity. Pricing adjusts with volume. For single orders above $15,000, full catalogue pricing applies automatically.
02. Can you send samples for FREE?+
Yes — free samples are available for standard items. We recommend confirming dimensions against your specs first. Outbound shipping is covered by us; return shipping is typically on the buyer's account.
03. What are your payment terms?+
Standard terms are T/T — 30% deposit in advance, balance against copy of B/L. Terms can be discussed based on order history and volume. L/C is not accepted for small orders.
04. What materials and thread types do you offer?+
We produce in 304, 304L, 316, and 316L stainless steel. Thread standards include ISO 7/1 and ISO 228/1 — covering BSP, DIN, NPT, and PT. Other standards available on request.
05. Do you offer OEM products?+
Yes. Our technical team handles OEM projects from drawings (DXF, DWG, STEP) or physical samples. We support prototyping, small-batch validation, and full production runs — with custom markings and packaging available.
01. What are your main product categories?+
We manufacture stainless steel threaded fittings (150LBS & 3000LBS), ball valves (1-piece, 2-piece, 3-piece), hydraulic fittings, flanges, press fittings, and clamps — all in 304 and 316 grades.
02. What international standards do your products follow?+
Fittings comply with ASME B16.11, ISO 7/1, ISO 228/1, and DIN 2999. Ball valves meet ISO 17292 / API 608. Material certificates and dimensional inspection reports are available on request.
03. Can you manufacture from custom drawings or samples?+
Yes. With 32 CNC machines — including machining centres and indexing chuck lathes — we produce precision parts from your technical drawings or reverse-engineer from physical samples.
04. Do you offer private-label or custom packaging?+
Yes. We offer OEM packaging with your brand name, custom labels, and box design. Available for both standard and custom products. Contact us for minimum quantity requirements per SKU.
05. What size range do your fittings and valves cover?+
Threaded fittings: 1/8" to 4" (BSP / NPT). Ball valves: DN8 to DN100 (1/4" to 4"). Non-standard sizes available for OEM projects — contact us with your specs.
01. What is the typical production lead time?+
Standard products: 20–30 days. Custom or OEM orders: 35–50 days depending on complexity and volume. We confirm the exact timeline before order placement.
02. What quality controls do you have in place?+
Every batch goes through: visual inspection, thread gauge checking, dimensional verification, angle sampling, and material spot-checks (PMI). Ball valves additionally undergo pneumatic pressure testing before shipment.
03. How do you handle quality claims after delivery?+
We respond to all quality claims within 24 hours. Our process includes root-cause analysis, photographic documentation, and resolution by replacement or credit. Long-term clients receive a dedicated after-sales contact.
04. What are your packaging and shipping arrangements?+
Products are packed in poly bags with export cartons and protective dunnage. Ball valves include end caps and thread protectors. We ship by sea (LCL / FCL), air, or courier — FOB Xingang or CIF to your port.
05. Do you provide material certificates and compliance documents?+
Yes. We provide material test reports (MTR), dimensional inspection reports, and PMI on request. EN 10204 3.1 certificates are available for 316 / 316L products.

Still have questions?

Our team responds within 24 hours. Share your project details and we'll find the right solution together.

Contact Us →

Let us create value together in the field of stainless steel