Hydraulic manual safety valve — power Manual, type Safety Relief Valves. The complete factory specification follows. Made by Zhejiang Haiyi Valve Co., Ltd. (17 years on the platform, typical reply ≤4h). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Hydraulic Manual Safety Valve
- Model Number: A28H
- Power: Manual
- Warranty: 1 years
- Place Of Origin: Hebei, China
- Application: General
- Type: Safety Relief Valves
Technical Specifications
| Type | Safety Relief Valves |
|---|---|
| Media | Steam,Oil,Gas |
| Port Size | DN15-DN80 |
| Temperature Of Media | Medium Temperature |
| Application | General |
| Power | Manual |
| Structure | Safety |
| Customized Support | ODM, OEM |
| Warranty | 1 years |
| Place Of Origin | Hebei, China |
| Model Number | A28H |
| Brand Name | HY |
| Selling Units | Single item |
| Single Package Size | 25X25X25 cm |
| Single Gross Weight | 10.0 kg |
Product Details


| item | value |
| structure | Safety |
| type | Safety Relief Valves |
| place of origin | China |
| application | General |
| customized support | ODM, OEM |
| power | Manual |
| port size | DN15-DN80 |
| model number | A28H |
| media | Steam,Oil,Gas |
| temperature of media | Medium Temperature |
| warranty | 1 years |
1.The A28H Hydraulic Manual Safety Valve is a high-temperature safety relief valve designed with a temperature-resistant stainless steel body, suitable for use in boilers working with steam, oil, and gas at medium temperatures.
2.The valve boasts a customizable design, allowing for the opportunity to work in tandem with original equipment manufacturers and original design manufacturers to achieve unique customizations.
3.The standard port size ranges from DN80 to DN15, and the three-year warranty provides peace of mind in knowing that any issues may be addressed.
4.This safety valve operates manually and is well-suited for various industrial applications, making it an attractive option in a varied range of settings.
5.The product's attributes provide flexibility in customization and make it stand out among similar products on the market.
Zhejiang Haiyi Valve Co., Ltd., specialized in manufacturing various kinds of safety valves, was developing from Wenzhou Haibin Valve General Factory founded in 1991. We are located in Longwan District, Wenzhou, China, enjoying developed economy and easily accessible transportation, close to Wenzhou Yongqiang Airport. Presently, our company covers an area of 9,800sqm, including a building space of 7,800sqm. We have fixed assets of more than RMB28,600,000.
Our company has attained ISO9001 International Quality Management System Certification and gained the AZ license issued by General Administration of Quality Supervision, Inspection and Quarantine of the PRC. Now, we have over 100 employees, including 8 senior & intermediate technicians, who are specialized in the design, R&D, testing and after-sales service. We have set up a CAD valve center to ensure the R&D quality and research speed of our new products.
In addition, we have more than 80 sets of precision equipment, inspection and testing devices for NC, physical/chemical analysis and flow detection and others. For many years, our products have been popular in the whole nation, exported to clients in many countries in Southeast Asia and Europe. We have received good praise from clients at home and abroad for the good quality of our products.
We will continue to hold our business policy of "top priority to quality, superior service to customers". We welcome customers from at home and abroad to visit us with our best products at favorable prices and excellent after-sales services.
1. who are we?
We are based in Zhejiang, China, start from 2008,sell to Southern Europe(40.00%),South America(40.00%),Eastern Asia(7.00%),Southeast Asia(5.00%),Mid East(5.00%),Eastern Europe(3.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Safety Valve,pressure relief valve,PRV,PSV,VALVE
4. why should you buy from us not from other suppliers?
We have 31 years of experience in production safety valve,Now we have more than 60 sets of precision equipment of different kinds plus various processing,inspection and testing devices for NC,physical/chemical analysis,flaw detection and so on
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency: USD,EUR,JPY;
Accepted Payment Type: T/T,L/C,Western Union;
Language Spoken: English,Chinese
Ordering and Pricing
- Minimum order quantity: 1 piece
- Volume pricing:
- 1–9 piece: US $68 / piece
- 10+ piece: US $65 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this hydraulic manual safety valve?
The standard minimum order quantity is 1 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 years warranty. Spare parts and technical support remain available after the warranty period.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Zhejiang Haiyi Valve Co., Ltd., based in China. The company 17 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Zhejiang Haiyi Valve Co., Ltd. range on HVACR Nexus.
See more in Boiler Parts on HVACR Nexus.














