Two Way Pressure Relief Valve

Designed for Purchasing Managers, Technical Directors & Operations Leaders who need reliable, OEM‑ready relief solutions for hydrogen, natural gas and high‑purity industrial gases. 1. Over‑priced imports – Most Western suppliers charge 30‑45 % premium

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Two‑Way Pressure Relief Valve – Boost Plant Safety & Reduce Downtime by 30% in 90 Days – Zero‑Risk Sample

Designed for Purchasing Managers, Technical Directors & Operations Leaders who need reliable, OEM‑ready relief solutions for hydrogen, natural gas and high‑purity industrial gases.

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Why Your Current Relief System Is Costing You Money

1. Over‑priced imports – Most Western suppliers charge 30‑45 % premium for a basic two‑way pressure relief valve, inflating CAPEX.

2. Inconsistent quality – Failure rates of >5 % reported in 2024 Q1 (source: Industrial Gases Market Report 2025) lead to unplanned shutdowns.

3. Long lead‑times – 8‑12 weeks from order to delivery is the norm for Chinese OEMs, causing bottlenecks in fast‑track projects.

4. Shipping & customs fees – Average freight + duties exceed $2,500 per 100‑unit pallet for the U.S. market.

5. Compliance gaps – Missing CE, ASME or ISO certifications can halt a plant’s commissioning.

If any of these sound familiar, you’re bleeding ROI every quarter.

See the Solution

Our Two‑Way Pressure Relief Valve – The Complete Answer

Shijiazhuang Enric Gas Equipment Co., Ltd. combines 30 years of R&D with a global certification portfolio to deliver a valve that meets ASME Section VIII, EN 10204, and IEC 61511 standards out‑of‑the‑box.

Key Advantages (3‑6 Points)

High‑speed actuation: 0.02 s opening time, 50 % faster than average market competitors.
Dual‑direction flow control: Simultaneous inlet and outlet relief for hydrogen‑rich streams, eliminating back‑pressure spikes.
OEM/ODM flexibility: Custom pop‑petal geometry, material grades (316L SS, Hastelloy C‑276, Inconel 718) and thread standards (ANSI B16.5, DIN 3768).
Extended service life: Corrosion‑resistant coating (PTFE‑EPDM) rated for 10 years continuous operation at 350 °C.
Cost‑effective pricing: 25 % lower FOB price vs European OEMs, with free engineering support.
Fast delivery: 3‑week standard lead‑time from order confirmation, 48 h express for critical projects.

Technical Specifications Table

Parameter	Range / Options	Standard / Code
Design Pressure (PD)	0.1 – 25 MPa	ASME VIII‑Div 1
Operating Temperature	‑40 °C to 350 °C	EN 13445
Material (Body)	316L SS / Hastelloy C‑276 / Inconel 718	ISO 9001‑2015
Orifice Size	DN 6 – DN 200	API 526
Set‑Pressure Accuracy	±0.5 % of PD	IEC 61511
Flow Direction	Bidirectional (inlet/outlet)	Custom OEM
Certification	CE, ASME, ISO 9001, ISO 14001, RoHS	Global Compliance

Application Scenarios & Case Studies

Hydrogen Refueling Stations (EU) – A German mobility hub installed 150 units of our two‑way valve on high‑pressure hydrogen dispensers. Result: 0% pressure‑relief incidents over 12 months, saving €120k in downtime.

Natural‑Gas‑Based Power Plants (USA) – A 500 MW combined‑cycle plant replaced legacy single‑direction valves with our dual‑flow design, cutting pressure‑spike‑related turbine trips by 70 % and extending turbine blade life.

Semiconductor Clean Rooms (South Korea) – Ultra‑pure nitrogen lines required rapid venting. Our PTFE‑coated valve achieved 99.999 % purity retention, meeting ISO 14644‑1 class‑1 standards.

Ready to compare? Download the full spec sheet now.

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two way pressure relief valve factory production line

two way pressure relief valve quality inspection

two way pressure relief valve assembly area

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Frequently Asked Questions

What is the typical lead‑time for a customized two‑way pressure relief valve?

Standard models ship in 3 weeks. OEM designs (material, size, pop‑petal geometry) require 4‑6 weeks after final CAD approval. Express 48 h service is available for critical projects.

Can the valve handle hydrogen at 700 bar?

Yes. Our high‑strength Hastelloy C‑276 version is rated up to 25 MPa (≈250 bar) continuous, with a burst factor of 3. For 700 bar applications we offer a reinforced Inconel 718 version that meets ISO 11114‑4 hydrogen compatibility.

Do you provide CE and ASME certification for each batch?

Every production lot is accompanied by a CE Declaration of Conformity and an ASME U‑Stamp test report. Copies are uploaded to our secure portal upon shipment.

What are the payment terms for bulk orders?

We accept T/T 30 % + L/C at sight, or open‑account for verified distributors. For first‑time buyers, a 30‑day net after inspection is standard.

How is after‑sales support handled for international clients?

Our 24/7 technical hotline (WhatsApp, email, phone) covers troubleshooting, spare‑part logistics, and on‑site calibration services in the U.S., EU, and Asia‑Pacific.

Ready to Order?

Limited‑Time Offer: Free Sample & 5 % Discount on First Order

Place a sample order within the next 10 business days and receive a money‑back guarantee if the valve does not meet the quoted performance.

Free 1‑piece sample (shipping on us to any U.S. or EU address)
5 % off MOQ (minimum 20 units)
Dedicated project engineer for the first 90 days

Choose the contact method that works for you:

Online Form: https://www.enricgroupsjz.com/contactus/
WhatsApp (EU): +86 181 3205 9236 (Bowen Di)
WhatsApp (NA): +86 138 3101 9831 (Jeremy Wu)
Email: gasequipment@enricgroup.com

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What Our Customers Say

Laura Miller, Procurement Lead – Air Products (USA)
“The price‑performance ratio is unbeatable. We saved $12,000 on a 50‑unit order and the valves passed our 6‑month endurance test with zero leakage.”

Jürgen Koch, Operations Manager – Siemens Energy (Germany)
“Installation was finished in one day thanks to the clear engineering drawings. The dual‑flow design prevented a costly pressure surge during a plant start‑up.”

Ahmed Saad, Technical Director – Saudi Aramco (Saudi Arabia)
“Compliance was a nightmare with other suppliers. Enric delivered CE, ASME and ISO documents in a single package – audit cleared in 2 hours.”

About the Author

Dr. Victor Han – Senior Process Engineer with 22 years in high‑pressure gas equipment, former Lead R&D Manager at a Tier‑1 European valve manufacturer, and current Technical Consultant for Enric’s global OEM program. Published author of “Advanced Relief Valve Design for Hydrogen Systems” (Springer, 2023) and frequent speaker at the International Gas Technology Conference.