Threaded High Pressure Safety Overflow Valve (GAAY42H)
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Product Highlights
- High Pressure Safety Protection: Ensures system safety by discharging excess gas when pressure exceeds specified limits.
- Wide Application Range: Suitable for Petroleum, Chemistry, and Hydraulic conveyor pipelines.
- Durable Material Construction: Body made of Carbon Steel, Seat and Disc made of Stainless Steel.
- High Temperature Resistance: Operates effectively at working temperatures below 200 degrees Celsius.
- Multiple Pressure Ratings: Available in PN16, PN25, PN40, and PN60 pressure classes.
- Versatile Connection Types: Offers Male Inlet and Female Outlet threaded connections.
- Fast Off-Season Delivery: Average lead time within 15 workdays during off-peak seasons.
- Global Shipping Options: Supports FOB, EXW, CFR, CIF, DAT, DDP, and DAP terms.
Product Attributes
- Customization
- Available
- Connection
- Male Inlet and Female Outlet
- Pressure
- 600lb
- Model NO.
- GAAY42H
- Size
- 1/2", 1"
- Application
- Petroleum, Chemistry and Hydraulic Conveyor Lines
- Working Medium
- Below 200 Deg C
- Transport Package
- Plywood Case
- Specification
- CE, SGS
- Trademark
- GOOLE, OEM
- Origin
- Wenzhou, Zhejiang, China
- HS Code
- 8481400000
- Production Capacity
- 10, 000PCS/Year
Product Images of Threaded High Pressure Safety Overflow Valve (GAAY42H)
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Product Description

The safety overflow valve plays a safety protection role in the system. When the system pressure exceeds the specified value, the safety valve opens to discharge a portion of the gas in the system into the atmosphere, ensuring that the system pressure does not exceed the allowable value, thereby ensuring that accidents do not occur due to excessive pressure in the system.
Materials for Main Parts
| No. | Name | Material |
| 1 | Body | Carbon Steel |
| 2 | Seat | Stainless Steel |
| 3 | Disc | Stainless Steel |
| 4 | Bonnet | Welding Element |
| 5 | Spring | 50CrVA |
External Dimension:
| Type | DN | Dimensions (mm) | ||||
| Rc | ZG | L | L1 | ≈H | ||
| GYA802Y-600 | 15 | 1/2" | 1/2" | 48 | 140 | 250 |
| 25 | 3/4" | 3/4" | 52 | 113 | 275 | |
| 40 | 1.1/2" | 1.1/2" | 52 | 157 | 336 | |
| Type | DN | Dimensions (mm) | |||||||||
| D | D1 | K | M | Z-d | b | L | L1 | Rc | ≈H | ||
| GAY42H-160 GAY42H-250 GAY42H-400 |
15 | 135 | 95 | 25 | M48X3 | 6-26 | 25 | 48 | 140 | 1" | 329 |
| 20 | 165 | 115 | 30 | M56X3 | 6-29 | 28 | 53 | 170 | 1.1/2" | 447 | |
| 25 | 200 | 145 | 38 | M64X3 | 6-29 | 40 | 53 | 175 | 2" | 485 | |
| 32 | 210 | 155 | 40 | M64X3 | 6-29 | 40 | 68 | 180 | 2.1/2" | 570 | |
Main Specifications
| Type | PN (MPa) | Setting Pressure (MPa) | Working Temp. (°C) | Suitable Medium |
| GYAY42H-160 GYA802Y-160 |
16 | 6.3-16.0 | 200 | Water, Oil, Gas, etc. |
| GYAY42H-250 GYA802Y-250 |
25 | 10.0-25.0 | ||
| GYAY42H-400 GYA802Y-400 GYA802Y-600 |
40.0-60.0 | 20.0-60.0 |

About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR2331467". Items marked "" are certified.
Company Profile
Yongjia Goole Valve Co., Ltd is a specialized and modernized company. As industrial valves, filters and pipe fittings supplier and project service provider, we are willing to provide you with high quality and perfect fluid control solutions, to create a new intelligent system with high efficient, energy saving and environmental protection characteristics, so as to help you make full use of your energy.
We manufacture and offer:
Safety relief valve(Our hot products, we have price & performance advantages about safety valves, and we can offer you the best price and quality you want): Spring loaded safety valve, high pressure and high temperature safety valve, pilot operated safety valve, DIN Standard Safety Valve, etc...
Control Valve: Electric Control Valve, Pneumatic Control Valve, Self-operated control valve, Globe control valve, 3-way control valve. etc.
Ball Valve: Floating Ball Valve, Trunnion Mounted Ball Valve, DBB Ball Valve, Full Welded Ball Valve., etc.
Pressure Reducing Valve: Pilot Operated reducing valves, Direct Acting and Bellow Type Reducing Valves. etc.
Steam Trap: Free Float steam trap, Lever Ball Float steam trap, thermodynamic and thermostatic steam trap, inverted bucket steam trap, etc.
DIN Bellow sealed globe valves, Y Type Strainer
Besides, Other valves and pipe fittings also can be offered by us.
Our products are widely used in petroleum, chemical, metallurgy, power stationand some other fields. We can also design and manufacture the non-standard products according to Customers' requirements.
Our Products are in strict accordance with ISO 9001 International Quality Management System. We also have a complete inspection system to ensure the quality of our products. From the Market Researching to Designing and developing, from the material purchasing to furnishing, inspection and testing, from delivery to after sale service, every step is processed under the Standard Management. In order to produce the superior industrial valve and let the national-made valve replace imported valve, we always stick to the following principles: Ensure the Quality for Survival, Ensure the Continuous Innovation for Development, and ensure the high efficient service for Customers' satisfaction.
We would like to serve our esteemed customers with superior products, reasonable price and complete sales services. We pledge we will be your most reliable business partner always.
About Our Factory & Business Background
- Address
- He-Yi Industiral Zone, Oubei Town, Yongjia, Wenzhou, Zhejiang, China
- Terms of Payment
- LC, T/T, Western Union, Money Gram
- International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF, DAT, DDP, DAP
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- Ningbo, Shanghai
Our Production Capability & Technical Expertise
- Main Products
- Safety Valve, Ball Valve, Control Valve, Steam Trap, DIN Valve, Strainer, Gate Valve, Globe Valve, Check Valve, Pressure Reducing Valve
Our Industry Experience & Global Business Record
- Export Year
- 2009-07-09
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What is the maximum working temperature?
- The valve is designed for working temperatures below 200 degrees Celsius.
- What materials are used for the main parts?
- The body is made of Carbon Steel, while the seat, disc, and bonnet use Stainless Steel and Welding Element.
- Which industries can use this valve?
- It is suitable for Petroleum, Chemistry, and Hydraulic conveyor pipelines.
- What are the available pressure ratings?
- The valve is available in PN16, PN25, PN40, and PN60 pressure classes.
- How does the valve ensure system safety?
- It opens to discharge excess gas into the atmosphere when system pressure exceeds the allowable value.
- What is the lead time for orders?
- Peak season lead time is one month, while off-season lead time is within 15 workdays.
- What payment terms are accepted?
- We accept LC, T/T, Western Union, and Money Gram.
- What are the connection types available?
- The valve features a Male Inlet and Female Outlet connection.
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