15610 NPT Male
1. Raw Material: Carbon Steel & Stainless Steel available2. Standard Plating: Trivalent Zinc Plating ( Cr3 / Chrome Free ), Silver & Yellow3. ...
1. Raw Material: Carbon Steel & Stainless Steel available2. Standard Plating: Trivalent Zinc Plating ( Cr3 / Chrome Free ), Silver & Yellow3. ...
1. Raw Material: Carbon Steel & Stainless Steel available2. Standard Plating: Trivalent Zinc Plating ( Cr3 / Chrome Free ), Silver & Yellow3. ...
1. Raw Material: Carbon Steel & Stainless Steel available2. Standard Plating: Trivalent Zinc Plating ( Cr3 / Chrome Free ), Silver & Yellow3. ...
1. Raw Material: Carbon Steel & Stainless Steel available2. Standard Plating: Trivalent Zinc Plating ( Cr3 / Chrome Free ), Silver & Yellow3. ...
1. Raw Material: Carbon Steel & Stainless Steel available2. Standard Plating: Trivalent Zinc Plating ( Cr3 / Chrome Free ), Silver & Yellow3. ...
Our 10 years of customisation experience has created the OPK Fitting brand value.




A 250 bar return line on a 12-tonne excavator starts weeping at the pump port. The hose is sound, the clamps are tight, and the leak is at the joint where a straight-thread stud meets the port. In most cases like this, the joint is one of four O-ring fitting families, and the whole repair depends o...
View MoreA maintenance crew replaces a three-quarter-inch hose by matching the part number on the old layline. Same pressure rating, same fittings, same length. Ten weeks later the tube is blistered, the oil has gone dark, and the press is down for two shifts. Nothing about the pressure rating was wrong. Th...
View MoreA hydraulic hose can survive years of service, but the connection is often the weak point. Think about a 3/8-inch JIC male connector that starts to weep because the 74° sealing seat is scored. The maintenance supervisor replaces the hose, only to discover the port on the manifold is ORFS. Two diffe...
View MoreSocketless hose fittings are a type of hydraulic connection designed for easy installation without the need for an outer socket or ferrule. This design allows the hose to be directly pushed onto the fitting barb, creating a tight and secure connection.
Compared with traditional fittings, socketless fittings simplify assembly, reduce installation time, and eliminate the need for crimping equipment, making them ideal for quick repairs and flexible applications.
Socketless fittings can be installed using basic tools such as lubrication and simple hand force. Installation time can be reduced by up to 60% compared to traditional crimp fittings.
Because no crimping machine or additional ferrule is required, socketless fittings help reduce equipment investment and labor costs. This is particularly useful for small workshops and field maintenance teams.
The internal barb design grips the hose firmly, ensuring leak-free performance. In many applications, these fittings can handle pressures up to 2000–3000 PSI safely.
Socketless fittings rely on a simple yet effective structure consisting of:
When the hose is pushed onto the fitting, the barb penetrates the inner wall, creating a tight frictional hold that prevents leakage under pressure.
| Feature | Socketless | Traditional |
|---|---|---|
| Installation | Quick, tool-free | Requires crimping |
| Cost | Lower | Higher equipment cost |
| Flexibility | High | Limited |
Socketless hose fittings are widely used in various industries due to their convenience and reliability:
They are especially useful in environments where fast maintenance and frequent hose replacement are required.
Socketless hose fittings are commonly made from:
With proper surface treatment, these fittings can last for years, even in demanding conditions with moisture or chemical exposure.
About OPK Fitting
OPK FITTING Hydraulic Equipment Factory is a specialized domestic factory with hydraulic pipes and adaptors production experience. Our managing scope relates to various fields such as hydraulic systems etc.; Including all kinds of materials with different pressure levels, flexible hydraulic hoses with various size criteria, hose fitting, adaptor, etc. They have been respectively applied in the hydraulic and fluid conveyance systems of industries, such as machinery, metallurgy petroleum, construction, ships, space-flight, agriculture, pharmaceutical, food, and so forth.
Over 10 years of experience, combined with a professional team and strict quality control, ensures reliable products and excellent service for global customers.
Q1: What is the main advantage of socketless hose fittings?
A: The main advantage is easy installation without the need for crimping tools, saving both time and cost.
Q2: Can socketless fittings handle high pressure?
A: Yes, depending on design and material, they can handle pressures up to 2000–3000 PSI in many applications.
Q3: Are they reusable?
A: Most socketless fittings are reusable if the hose and fitting are in good condition, but inspection is recommended before reuse.
Q4: Where are they commonly used?
A: They are widely used in automotive, agriculture, and light industrial hydraulic systems.