All Weather Breather Valve ( HXF-I )

The All Weather Breather Valve (HXF-I) is a specialized ventilation device engineered for installation on petrochemical storage tanks. Its core functions are to prevent tank damage caused by internal overpressure or excessive vacuum, block external flame intrusion, and minimize the volatilization loss of stored liquids. Our HXF-I series breather valves adopt a scientifically optimized compact structure, featuring large ventilation capacity and minimal leakage rate. To meet diverse market demands, the product line includes breathing type, single exhalation type, and single inhalation type variants. These structural forms can be used independently, and are also compatible with fire resistance devices as well as exhalation and inhalation end connecting pipes.

Ⅰ．Product Introduction

The All Weather Breather Valve (HXF-I) is a specialized ventilation device engineered for installation on petrochemical storage tanks. Its core functions are to prevent tank damage caused by internal overpressure or excessive vacuum, block external flame intrusion, and minimize the volatilization loss of stored liquids.

Our HXF-I series breather valves adopt a scientifically optimized compact structure, featuring large ventilation capacity and minimal leakage rate. To meet diverse market demands, the product line includes breathing type, single exhalation type, and single inhalation type variants. These structural forms can be used independently, and are also compatible with fire resistance devices as well as exhalation and inhalation end connecting pipes.

Tailored materials are selected for the valves to adapt to storage tanks holding different media such as oil products, chemicals, and food, fully satisfying the process requirements of storage and transportation systems. For scenarios with thermal insulation needs, the valve can be customized into a sandwich structure. For applications requiring special pressure ratings or large-diameter specifications, our company can conduct customized design and production based on the specific parameters provided by customers.

Ⅱ．Product Features

Multi-functional Protection

Simultaneously prevents tank overpressure and over-vacuum, and blocks external flame from entering the tank, providing comprehensive protection for storage tanks and stored media.
High Ventilation Efficiency & Low Leakage

Adopts a compact and scientific structural design, which ensures large ventilation capacity to quickly balance tank internal pressure, and minimizes liquid volatilization loss due to low leakage rate.
Diverse Structural Options

Offers breathing type, single exhalation type and single inhalation type; can be used alone or combined with fire resistance devices and connecting pipes, meeting various application scenarios.
Customizable Material Configuration

Provides multiple material combinations according to different stored media (oil products, chemicals, food, etc.), ensuring excellent corrosion resistance and compatibility.
Insulation Customization

Can be designed into a sandwich structure to meet the thermal insulation requirements of special working conditions.
Customizable Specifications

Supports customized design and production for special pressure rating and large-diameter requirements, adapting to non-standard application scenarios.

Ⅲ．Technical Data Summary

1. Housing Material and Applicable Media

Model Grade	Monoblock	MinPan	Guide Rod	Fire Resistance Layer	Sealed Seat	Applicable Medium
Ⅰ	Cast Aluminium Alloy	Alufer	1CR13	304	Polytetrafluoroethylene (PTFE)	Oil
Ⅱ	Carbon Steel	304	304	304	Polytetrafluoroethylene (PTFE)	Oil products, Chemical products
Ⅲ	SS304	304	304	304	Polytetrafluoroethylene (PTFE)	Chemicals
Ⅳ	SS304L	304L	304L	304L	Polytetrafluoroethylene (PTFE)	Chemicals
Ⅴ	SS316	316	316	316	Polytetrafluoroethylene (PTFE)	Chemicals
Ⅵ	SS316L	316L	316L	316L	Polytetrafluoroethylene (PTFE)	Chemicals
Ⅶ	PP	PP	PP	–	PP	Chemicals
Ⅷ	PVC	PVC	PVC	–	PP	Chemicals

2. Operating Pressure

Pressure Rating	Exhalation Pressure	Inhalation Pressure
A	+355Pa (36mmH₂O)	-295Pa (30mmH₂O)
B	+980Pa (100mmH₂O)	-295Pa (30mmH₂O)
C	+1765Pa (180mmH₂O)	-392Pa (40mmH₂O)
D	Customized by User	Customized by User

Ⅳ．The main shape and connection size

Aeration and leakage amount of the breathing valve

code name	pressure rating	Each each capacity of m3/h
code name	pressure rating	50	80	100	150	200	250
A	+355	25	60	90	190	340	550
A	-295	20	50	75	160	280	450
B	+980	30	70	100	200	380	600
B	-295	20	50	75	160	280	450
C	+1765	40	95	140	280	500	800
C	-295	20	50	75	160	280	450
Standard allows leakage of m³ / h		≤0.04				≤0.4

parameter table

DN	L	H
50	160	255
80	213	260
100	265	290
150	305	330
200	355	350
250	420	400
300	480	510

About Us

Founded in 2016, Shanghai Wangye Valve Manufacturing Co., Ltd. is a professional industrial fluid control manufacturer with nearly a decade of experience, integrating R&D, intelligent production, sales, and customized solutions. Leveraging Shanghai’s advanced manufacturing advantages, we’ve built a reliable brand across petrochemicals, power, metallurgy, water treatment, and new energy industries, offering gate/ball/butterfly valves and tailored solutions for harsh conditions. Backed by advanced equipment, full-process quality control, and ISO certifications, we adhere to “Integrity, Quality, Customer Focus, Innovation” and provide comprehensive services, striving for long-term cooperation and continuous technological upgrading.

Why Choose Us

Talent and Efficient Team

WYE always insists that employees are the most valuable asset of the enterprise and the future of WYE; Adhere to prioritizing talent selection, education, and utilization in the development of enterprises; introducing talent as the highest return investment behavior. We regard talent as the primary resource for effective management, and pursue a high degree of harmony and unity between employee personal development and enterprise development.We encourage you to have a special perspective, think independently, and be good at organizing resources from all parties. Always maintain a responsible attitude towards results and a positive team spirit that is willing to share in every task..

High End Processing Equipment Creating Excellent Product Quality

Advanced automated production equipment and sophisticated assembly line production demonstrate first-class quality.Technical experts directly participate in production to ensure the concealment and reliability of the product.The increasing awareness of high-quality products and the continuous supply of industrial products have made WYE constantly changing.No matter how the world changes, the persistent spirit of excellence among WTE people remains unchanged.

Warehouse Strength

In our facility, raw materials (including core components and packaging supplies) are strictly controlled via a real-time digital inventory system—tracking batches, shelf life, and storage conditions to boost traceability and cut waste. Semi-finished products, post-preliminary quality checks, are stored per strict industry standards: labeled with progress/inspection records to avoid cross-contamination and damage. Finished products are sorted into specialized warehouses by type, market, and delivery schedule, streamlining picking and reducing dispatch delays. This standardized process effectively boosts efficiency: cutting redundant steps by 30%, shortening fulfillment cycles by 20%, and minimizing inventory/shipment errors.

Customized Solutions & After-Sales Support

Tailored to the distinct demands of industries like petrochemicals, new energy, and metallurgy, WYE provides personalized industrial fluid control solutions—covering pre-project demand assessment, customized valve design (matching specific working conditions like pressure or medium type), and on-site technical consultation to align with clients’ operational scenarios. Additionally, we offer comprehensive after-sales support: including on-site installation guidance, regular equipment maintenance inspections, and 24/7 responsive fault troubleshooting, which ensures the stable operation of clients’ systems and strengthens long-term cooperative partnerships.

Our Services

Our company is a one-stop solution for all valve-related needs, offering customization to tailor valves to unique specifications, professional installation & commissioning for seamless integration and optimal performance, maintenance & repair to keep valves in top condition and extend their lifespan, and technical support & consultation for expert advice on selection, optimization, and troubleshooting throughout every project stage.

PRODUCT PICTURE

EXHIBITION

PRODUCTION WORKSHOP

CERTIFICATIONS

CE-ROHS

ISO9001

ISO 15484

ISO 45001

API 607

COOPERATIVE PARTNER

Valve Solutions That Transform Your Operations

Our valves offer superior durability, precise control, and tailored solutions for your industrial, commercial, or residential needs. Don’t miss the opportunity to get reliable valve products and expert support.

All Weather Breather Valve ( HXF-I )

Ⅰ．Product Introduction

Ⅱ．Product Features