Beijing Sunrise Technology Co., Ltd.
| Working Pressure | 5,000 PSI ~ 20,000 PSI |
| Service Conditions | STD (Standard) & H₂S (Sour Service) |
| Manufacturing Standards | API 6A, API 16C |
| Temperature Rating | -29°C ~ +121°C (PU Grade) |
| Payment Terms | Mostly 30%-70%. For some large-scale equipment,the payment term will be discussed. |
| Nominal Size | 2" ~ 3" |
| Relief Pressure Adjustment | 35 MPa to 140 MPa |
| Packaging Details | Seaworthy packaging |
| Brand Name | Factory-owned Brand |
| Place of Origin | CHINA |
| Certification | API, ASEM, etc. |
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Product Specification
| Working Pressure | 5,000 PSI ~ 20,000 PSI | Service Conditions | STD (Standard) & H₂S (Sour Service) |
| Manufacturing Standards | API 6A, API 16C | Temperature Rating | -29°C ~ +121°C (PU Grade) |
| Payment Terms | Mostly 30%-70%. For some large-scale equipment,the payment term will be discussed. | Nominal Size | 2" ~ 3" |
| Relief Pressure Adjustment | 35 MPa to 140 MPa | Packaging Details | Seaworthy packaging |
| Brand Name | Factory-owned Brand | Place of Origin | CHINA |
| Certification | API, ASEM, etc. | ||
| High Light | Emergency Unloading Relief Valve ，3" Spring Loaded Pressure Relief Valve ，API Spring Loaded Safety Relief Valve | ||
Our Emergency Unloading Valve, also commonly utilized as a high-pressure safety valve, is a direct-action, spring-loaded ball and seat structure designed to safeguard critical equipment and personnel. Manufactured by JUHENG, this valve ensures automatic protection in the event of unexpected pressure surges.
When the system pressure exceeds the pre-set value, the valve opens automatically, utilizing the system's own pressure to relieve the excess. Once the pressure drops back to a safe level, the valve automatically resets and closes. This robust design allows for continuous operation without damaging downtime, providing superior performance compared to traditional shear-pin relief valves, especially in high-pressure fluid control and reciprocating pump systems.
Direct-Action & Spring Reset: Utilizes a spring-loaded mechanism that reliably resets the valve after pressure relief, ensuring automatic protection and operational continuity.
Adjustable Relief Pressure: The top-mounted adjustment bolt allows operators to precisely set the release pressure ranging from 35 MPa to 140 MPa, making it highly adaptable to varying system requirements.
Hammer Union Connection: Designed with durable FIG1502 or FIG2002 union connections, enabling convenient installation, easy disassembly, and quick field maintenance.
Superior Safety Performance: Provides more reliable over-pressure protection than shear-pin type safety valves, preventing equipment damage without necessitating immediate shutdown.
H₂S Compatibility: Manufactured using high-grade materials that allow it to operate safely in standard as well as sour gas (H₂S) environments.
|
Parameter |
Details |
|
Brand / Technology |
JUHENG |
|
Valve Type |
Emergency Unloading Valve / Safety Relief Valve |
|
Nominal Size |
2" ~ 3" |
|
Working Pressure |
5,000 PSI ~ 20,000 PSI |
|
Temperature Rating |
-29°C ~ +121°C (PU Grade) |
|
Manufacturing Standards |
API 6A, API 16C |
|
Relief Pressure Adjustment |
35 MPa to 140 MPa |
|
Service Conditions |
STD (Standard) & H₂S (Sour Service) |
Refer to the table below to select the exact model based on your required size and connection type. The JUHENG EUV series offers flexible options to match your specific piping and pressure ratings.
|
Item Code |
Size / Specifications |
Working Pressure |
The Connection Type |
Operating Conditions |
|
JH-EUV-1502 |
2" |
5,000 ~ 20,000 PSI |
FIG1502 (F×M) |
STD |
|
JH-EUV-2202 |
2" |
5,000 ~ 20,000 PSI |
FIG2002 (F×M) |
H2S |
|
JH-EUV-1502 |
3" |
5,000 ~ 20,000 PSI |
FIG1502 (F×M) |
STD |
|
JH-EUV-2202 |
3" |
5,000 ~ 20,000 PSI |
FIG2002 (F×M) |
H2S |
(Note: FIG1502 connections typically follow standard service, while FIG2002 connections are specifically engineered for enhanced H₂S sour gas applications.)
Engineered for demanding environments, our spring-loaded emergency unloading valves are extensively used in:
High-pressure fluid control pipelines and manifolds.
Reciprocating plunger pumps and mud pump systems.
High-pressure vessels and pressure tanks requiring critical over-pressure safety.
Oil and gas wellhead fracturing and cementing operations.
Sour gas (H₂S) production and processing facilities.
As shown in our product catalog, we also supply a full range of API 6A & API 16C Choke Valves (both fixed throttle and manual throttle types). Operating at working pressures from 5,000 PSI to 20,000 PSI and sizes ranging from 2" to 3", our choke valves provide precise flow regulation for your wellhead and manifold systems.
For detailed specifications and a quotation on our Choke Valves, please contact our sales team.
Request Your Custom Quotation Today
We understand that safety and reliability are non-negotiable in the oil and gas industry. Whether you need standard or H₂S-rated safety relief valves, our team is ready to provide competitive pricing and fast lead times. Contact us today to discuss your specific pressure settings and connection requirements.
Company Details
Business Type:
Trading Company,Exporter
Year Established:
2012
Employee Number:
20~50
Ecer Certification：
Verified Supplier
WHO WE ARE Beijing Sunrise Technology Co., Ltd. (Sunrise), established in 2012 and headquartered in Beijing, has grown into a globally trusted supplier of oilfield equipment. With over a decade of experience, Sunrise stands as a reliable, high-quality partner for the world’s most demanding ene... WHO WE ARE Beijing Sunrise Technology Co., Ltd. (Sunrise), established in 2012 and headquartered in Beijing, has grown into a globally trusted supplier of oilfield equipment. With over a decade of experience, Sunrise stands as a reliable, high-quality partner for the world’s most demanding ene...
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