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Views: 0 Author: Site Editor Publish Time: 2026-05-09 Origin: Site
When it comes to fluid control in corrosive, high-temperature industrial systems, PP-H (Polypropylene Homopolymer) ball valves are a top choice for reliability, chemical resistance, and long-term performance. At VSJOCO, our Beta PP-H Double Union Ball Valves are engineered to meet the demanding requirements of sectors like chemical processing, water treatment, semiconductor manufacturing, and solar energy systems. We offer two primary connection configurations: butt welding (BW) and socket welding (SW), both rated PN10 (10 bar pressure rating). This guide breaks down the features, differences, specifications, and applications of these two valve types to help you choose the right solution for your project.
Before diving into connection types, let’s highlight the core advantages of our Beta series ball valves, designed for industrial durability:
Premium PP-H Construction: Offers exceptional resistance to acids, alkalis, and corrosive fluids, with excellent thermal stability for continuous operation up to 90°C (depending on fluid compatibility).
Double Union Design: Allows easy disassembly for maintenance or replacement without removing the entire valve from the pipeline, reducing downtime.
EPDM Seals (Standard): Provides reliable sealing performance across a wide range of chemical media and operating temperatures, ensuring zero leakage.
PN10 Pressure Rating: Suitable for industrial systems operating at pressures up to 10 bar, with consistent performance across DN15 to DN100 sizes.
Optimized Flow Characteristics: With high Kv-values (flow coefficients), these valves minimize pressure drop, supporting efficient fluid transfer in process lines.
The butt welding double union ball valve is designed for full penetration fusion welding to PP-H pipes, creating a seamless, high-strength joint. This connection method is ideal for permanent, leak-proof installations in critical industrial systems.
Size Range: DN15 (20mm) to DN50 (63mm)
Pressure Rating: PN10 (10 bar)
Connection Type: Butt welding, compatible with standard PP-H pipe dimensions for fusion welding
Flow Performance: Kv-values range from 185 L/min (DN15) to 3100 L/min (DN50), supporting high-flow process applications
Product Codes: 555 700 xxx (valve body) / 555 720 xxx (EPDM seal variant)
Dimensions & Weights:
表格
DN (mm) | d (mm) | Weight (kg) |
|---|---|---|
15 | 20 | 0.120 |
20 | 25 | 0.180 |
25 | 32 | 0.260 |
32 | 40 | 0.450 |
40 | 50 | 0.620 |
50 | 63 | 1.310 |
Permanent industrial pipelines where joint strength and full system integrity are critical
High-flow chemical processing lines
Systems requiring minimal pressure drop (due to the smooth, seamless welded joint)
Large-scale water treatment and distribution systems
The socket welding double union ball valve features a recessed socket end, where the pipe is inserted into the valve body before fusion welding. This design simplifies installation, especially for smaller to medium-sized pipelines, while maintaining a strong, reliable joint.
Size Range: DN15 (20mm) to DN100 (110mm)
Pressure Rating: PN10 (10 bar)
Connection Type: Socket welding, designed for easy pipe insertion and fusion welding
Flow Performance: Kv-values range from 185 L/min (DN15) to 11000 L/min (DN100), supporting both low and high-flow applications
Product Codes: 555 700 xxx (valve body) / 555 720 xxx (EPDM seal variant)
Dimensions & Weights:
表格
DN (mm) | d (mm) | Weight (kg) |
|---|---|---|
15 | 20 | 0.115 |
20 | 25 | 0.180 |
25 | 32 | 0.255 |
32 | 40 | 0.440 |
40 | 50 | 0.610 |
50 | 63 | 1.145 |
65 | 75 | 3.700 |
80 | 90 | 5.500 |
100 | 110 | 8.700 |
Small to medium-sized industrial pipelines (up to DN100)
Systems requiring quick, accurate installation (socket alignment simplifies welding)
Chemical and pharmaceutical processing lines
Water distribution and wastewater treatment facilities
The decision between butt welding and socket welding depends on your project’s specific requirements:
表格
Factor | Butt Welding Valve | Socket Welding Valve |
|---|---|---|
Installation | Requires precise pipe end preparation and alignment | Easier installation with built-in pipe alignment in the socket |
Joint Strength | Full penetration weld creates a seamless joint matching pipe strength | Fillet weld provides strong performance, ideal for most industrial applications |
Flow Efficiency | Smooth, unobstructed flow path with minimal pressure drop | Slight flow restriction at the socket joint, but negligible for most systems |
Size Range | DN15 to DN50 | DN15 to DN100 (wider size coverage) |
Common Use Cases | Permanent, high-integrity process lines | General industrial pipelines with standard pressure and flow requirements |
Quality-Certified Manufacturing: Every valve undergoes rigorous quality checks to ensure compliance with PN10 standards and consistent performance in corrosive environments.
Versatile Compatibility: Compatible with standard PP-H pipe systems, making integration into existing pipelines seamless.
Low Maintenance Design: The double union structure allows quick access for cleaning, repair, or replacement, reducing long-term operational costs.
Long Service Life: PP-H’s resistance to corrosion, UV degradation, and thermal aging ensures reliable performance for years, even in harsh industrial conditions.
Customization Options: We offer tailored solutions, including alternative seal materials (e.g., FKM) and actuation-ready designs for automated systems.
Whether you need a butt welding ball valve for a permanent high-flow process line or a socket welding valve for a versatile industrial pipeline, VSJOCO’s Beta PP-H series delivers the durability, chemical resistance, and performance you need.
Contact our engineering team today to discuss your project requirements, request detailed specifications, or get personalized recommendations for your fluid control system.
