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Premium Hydraulic Hose End Fittings & Ferrule Solutions

High-pressure hydraulic connectors engineered for durability, precision, and leak-free performance. Trusted by industrial leaders worldwide since 2009.

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Who We Are

YUYAO DUOLI HYDRAULICS CO., LTD, established in 2009, is a professional manufacturer engaged in the research, development, production, sale, and service of hydraulic fittings. Located in Yuyao, Zhejiang, China, we specialize in high-quality hydraulic hose end fittings and ferrule fittings for global industrial applications.

Our mission is to deliver reliable, precision-engineered hydraulic connection solutions that meet international standards and exceed customer expectations in performance and durability.

2009
Founded
38+
Product Lines
50+
Countries Served
100%
Quality Checked
Hydraulic Fittings Manufacturing

Quality Control

We maintain rigorous quality standards across all production stages. With over 5 professional technical personnel, every product undergoes 100% inspection to ensure reliability and performance under extreme conditions.

Material Inspection

All raw materials are tested for composition and mechanical properties before processing.

Precision Testing

CNC-machined components are verified for dimensional accuracy and thread integrity.

Pressure Validation

Every batch is subjected to high-pressure testing to ensure leak-free performance.

Our Product Range

Comprehensive selection of hydraulic fittings designed for high-pressure systems, industrial machinery, and mobile equipment.

JIC Hydraulic Hose Fittings

90° Elbow SAE JIC Hydraulic Fittings

  • Thread: Female
  • Material: Carbon Steel
  • Standard: SAE J514
  • Seal: 37° Flare
View Details
BSP Hydraulic Fittings

Straight BSP Hydraulic Fittings

  • Thread: Male/Female
  • Material: Carbon Steel
  • Color: White
  • Origin: Zhejiang, China
View Details
NPT Thread Adapters

Zinc Plated NPT Thread Adapters

  • Finish: Yellow Zinc Plated
  • Standard: ANSI/ASME B1.20.1
  • Application: Hydraulic Couplings
  • Type: Straight & Elbow
View Details
Bite Type Tube Fitting

Bite Type Tube Fittings

  • Type: 24° Cone, Metric
  • Connection: Adjustable Stud
  • Seal: O-Ring
  • Material: Carbon Steel
View Details
BSPT Flare Fittings

BSPT Male JIC Flared Fittings

  • Seal: 37° Conical
  • Model: 1JT-SP
  • Material: Carbon Steel
  • Standard: BSPT / JIC Combo
View Details
Hydraulic Ferrule Fittings

Hydraulic Hose Ferrule Fittings

  • Size: SAE 100 R7, R9-R9R
  • Process: Non-Skive
  • Material: Carbon Steel
  • Finish: Zinc Plated
View Details
JIS Hydraulic Fittings

JIS BSP Hydraulic Hose Fittings

  • Standard: JIS B8363
  • Angle: 90° & 45°
  • Thread: BSP Female
  • Swivel: Yes
View Details
ORFS Adapter

ORFS Adapter Fittings

  • Type: Flat Face Seal
  • Material: Forged Stainless Steel
  • Model: 15943-8-6
  • Application: High-Pressure Systems
View Details
View All 139+ Products

Why Choose Our Fittings?

Engineered for performance, reliability, and longevity in the most demanding hydraulic environments.

Industrial Grade Materials

Precision-forged carbon steel and stainless steel ensure strength and corrosion resistance under extreme pressure and temperature conditions.

Precision Engineering

CNC-machined to exact tolerances for perfect thread fit and leak-free connections every time.

Leak-Proof Sealing

Advanced sealing technologies including 37° JIC, 60° BSPT, O-rings, and ED seals for maximum reliability.

Global Standards Compliance

Meets or exceeds SAE, ISO, JIS, and BS standards for hydraulic fittings used in critical applications.

Fast Global Delivery

Efficient logistics network ensures prompt delivery to over 50 countries with reliable supply chain management.

Custom Solutions Available

OEM and ODM services for specialized hydraulic assemblies and non-standard configurations.

139+
Products
50+
Countries
14+
Years Experience
100%
Inspected

Frequently Asked Questions

What materials are your hydraulic fittings made from?

Our hydraulic fittings are primarily manufactured from high-grade carbon steel. We also offer stainless steel options for corrosion-resistant applications. All materials are carefully selected and tested to meet international standards.

What standards do your fittings comply with?

Our products meet or exceed multiple international standards including SAE J514 (JIC), ISO 8434, BSPP/BSPT, NPT, JIS B8363, and DIN 2353. Each product line is engineered to perform reliably within its specified standard.

Do you offer custom hydraulic fitting solutions?

Yes, we provide OEM and ODM services for custom hydraulic fittings and assemblies. Our engineering team can work with your specifications to develop specialized solutions for unique applications.

What is the typical lead time for orders?

Standard products typically ship within 7-15 days after order confirmation. Custom orders may require additional time depending on complexity. We provide exact lead times during the quotation process.

How do you ensure quality control?

We implement a comprehensive quality control system with over 5 dedicated technical personnel. Every product undergoes 100% inspection for dimensional accuracy, thread quality, and pressure performance before shipment.

Get In Touch

Ready to discuss your hydraulic fitting requirements? Contact us for expert support and competitive pricing.

For product inquiries, quotations, or technical support, please visit our official website to connect with our sales team.

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