What is a proportional valve used for?

A proportional valve blends new and lower-grade (recycled) materials in precise proportions before transferring them to the next stage of plastic processing. It ensures an accurate, repeatable mixing ratio for consistent material quality and reduced raw-material cost.

What models and capacities are available?

Two models are available: XC-BH500 with a conveying capacity of 500 kg/h and a Φ38 interface, and XC-BH800 with 800 kg/h and a Φ51 interface. Both operate at an air pressure of ≥3 kgf/cm2.

What is the price of proportional valves in India?

The standard listed price is ₹35,000. Bulk and model-specific pricing is available on enquiry — request a quote from Seaways Machinery for an exact price with GST invoice.

What material is the proportional valve made from?

The valve is constructed from durable stainless steel with a dead-corner-free design that prevents material buildup, minimises cleaning, and ensures smooth, uncontaminated transport of raw materials.

How is the mixing ratio controlled?

The mixing ratio is accurately managed by a microcomputer, ensuring precise measurement and optimal, repeatable performance when proportioning new and recycled materials.

Which model should I choose?

Choose based on your required throughput and interface size — XC-BH500 (500 kg/h, Φ38) for lighter duty and XC-BH800 (800 kg/h, Φ51) for higher capacity. The Seaways technical team can advise if you are unsure.

Do you provide warranty and after-sales service?

Yes. Seaways Machinery provides a 1-year warranty plus pan-India installation, spare parts dispatch, and after-sales support, backed by over 10 years of experience in plastic processing machinery.

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Proportional Valves

Price Range (Ex-Factory, Rajkot)

₹35,000.00

Price varies by model size & motor capacity. Contact us for exact quote.

The Seaways Proportional Valve precisely blends virgin and lower-grade or recycled material in controlled proportions before feeding it to the next stage of processing. Built from durable stainless steel with a dead-corner-free internal design, it prevents material buildup and keeps raw material flowing clean and uncontaminated. A microcomputer manages the mixing ratio for accurate, repeatable dosing – a cost-effective way to cut material costs without compromising output quality.

Why Choose Seaways

Proportional Valve Features

Built to industrial dosing standards for precise, repeatable blending of virgin and recycled material in continuous-running production lines.

Precise Proportional Dosing

Accurately meters virgin and lower-grade material in set proportions for consistent, repeatable blend quality.

Microcomputer Ratio Control

An onboard microcomputer manages the mixing ratio, ensuring precise measurement and optimal performance.

Dead-Corner-Free Design

A carefully engineered internal geometry eliminates dead corners, preventing material buildup and contamination.

Durable Stainless-Steel Body

Constructed from stainless steel for corrosion resistance, hygiene, and a long service life under continuous use.

Low-Maintenance Operation

The clean internal design minimises residue, reducing cleaning frequency and downtime between material changes.

Smooth Material Transfer

Ensures uncontaminated, free-flowing transport of raw material to the next stage of processing.

2 Models Available

Choose Your Proportional Valve Model

Our proportional valve range covers the XC-BH500 for mid-volume lines through to the higher-throughput XC-BH800. Every model is available with custom configurations.

XC-BH500 Proportional Valve

500 kg/h

Interface Size Φ38 mm

Air Pressure ≥3 kgf/cm²

Dimensions 260 × 150 × 180 mm

Enquire for Price

XC-BH800 Proportional Mixing Valve

800 kg/h

Interface Size Φ51 mm

Air Pressure ≥3 kgf/cm²

Dimensions 305 × 170 × 220 mm

Enquire for Price

Specification Table

Proportional Valve Technical Specifications

Detailed technical data for all XC-BH series models. Dimensions in mm, capacity in KG/H.

Model	Conveying capacity (kg/h)	Interface size (mm)	Air pressure (kgf/cm2)	Dimensions (mm)
XC-BH500	500	Φ38	≥3	260x150x180
XC-BH800	800	Φ51	≥3	305x170x220

Industries Served

Applications & Use Cases

The Proportional Valve is trusted across a wide range of plastic-processing industries.

Injection Moulding Units

Blends virgin and regrind material in set ratios to cut material costs without affecting part quality.

Extrusion Lines

Maintains a consistent virgin-to-regrind blend for stable, continuous extrusion output.

Blow Moulding Plants

Doses recycled flake into virgin material accurately for uniform bottle and container production.

Plastic Recycling Plants

Reintroduces reclaimed material into the production stream in controlled proportions.

Compounding & Masterbatch Units

Meters additives and masterbatch precisely into the base material flow.

Sheet & Film Production

Keeps blend ratios stable for consistent sheet and film thickness and finish.

Material Handling Systems

Integrates with conveying lines to feed pre-blended material to the next stage.

Cost-Saving Material Programs

Helps processors maximise regrind usage while protecting finished-product quality.

Proportional Valves - Precision Virgin and Regrind Material Blending

Seaways Proportional Valves are precision material-blending systems designed to accurately combine virgin plastic with regrind, recycled, or lower-grade material before the next stage of processing. The system uses an onboard microcomputer ratio-control system to maintain consistent and repeatable material proportions, helping manufacturers reduce raw-material costs while maintaining production quality. Built with a durable stainless-steel body and a dead-corner-free internal design, the valve minimizes material buildup, contamination, and cleaning requirements.

Smooth material transfer ensures reliable feeding into downstream plastic processing equipment. The XC-BH series is available in two models: XC-BH500 with 500 kg/h capacity and Φ38 mm interface, and XC-BH800 with 800 kg/h capacity and Φ51 mm interface. Both models require air pressure of ≥3 kgf/cm². These proportional mixing valves are suitable for injection moulding, extrusion, blow moulding, recycling, compounding, masterbatch, sheet, and film production applications.

The Testimonials

What Our Customers Say

PAN-INDIA AVAILABILITY

Our Coverage Across India

Direct factory dispatch from our Rajkot facility to 13 cities across 7 states. Installation, training, and after-sales support included nationwide.

Home state direct dispatch from our Rajkot HQ

Industrial corridor fast delivery to Mumbai and Pune

Serving Delhi NCR and Rajasthan industrial belts

Coverage across Tamil Nadu and Telangana

Don't see your city? We deliver pan-India.

Common Questions

Frequently Asked Questions

A proportional valve precisely blends virgin material with regrind or lower-grade material in set proportions before feeding it to the next stage of processing, helping reduce material costs while maintaining output quality.

The mixing ratio is managed by an onboard microcomputer, which ensures accurate, repeatable measurement for optimal blending performance.

Two models are available, the XC-BH500 (500 KG/H) and the XC-BH800 (800 KG/H), differing in conveying capacity, interface size, and dimensions.

The standard listed price is ₹35,000.00. Pricing varies by model and configuration. Request a quote for an exact price tailored to your line.

It is constructed from durable stainless steel with a dead-corner-free internal design that resists buildup and corrosion for long, hygienic service.

Both models require a supply air pressure of ≥3 kgf/cm² for reliable operation.

Yes. All units include manufacturer support plus installation and pan-India after-sales assistance, backed by 10+ years of industry experience.

Yes. Custom interface sizes and configurations are available on request.

Get the Best Price for Plastic Processing Machines

Tell us your plastic type, required capacity, and preferred model size. Our technical team will respond within 4 business hours with pricing, lead time, and a technical datasheet.

Factory-direct pricing — no middleman markup
Response within 4 business hours
Free technical consultation included
Pan-India delivery & installation support
1-year warranty on all models
GST invoice provided

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