DIPTI METAL INDUSTRIES
Safety Valves & Pressure Relief Valves (PRV/PSV): Global Safety Valve Manufacturer, Safety Valve Supplier & Safety Valve Exporter from Mumbai, India (API 526 Compliant)
Dipti Metal Industries – Your Premier Worldwide Safety Valves Manufacturer, Global Safety Valve Supplier, Safety Valves Dealers, Safety Valves Distributors, and Top Safety Valves Stockists of High-Quality Pressure Relief Valves (PRV) and Pressure Safety Valves (PSV). We specialize in valves fully compliant with API 520, API 526, and ASME B16.34 standards, ensuring the utmost safety and reliability for critical fluid systems. We offer a comprehensive range including Conventional, Balanced Bellows, and Pilot-Operated designs, covering all major pressure classes (ASME Class 150-2500, PN 10-420) and material grades. As a Safety Valves manufacturer and global Safety Valves leader, we provide certified solutions from Mumbai, India, for over-pressure protection across Oil & Gas, Power, and Chemical Processing industries globally.
Introduction to Dipti Metal Industries' Critical Safety Valve Supply
Dipti Metal Industries is recognized as a top worldwide Safety Valves leader and largest global Safety Valves Manufacturer, Safety Valves supplier, Safety Valves stockist, Safety Valves dealer, Safety Valve distributor, and Safety Valves exporter from Mumbai, India, specializing in critical **Pressure Safety Valves (PSV)** and **Pressure Relief Valves (PRV)**. Our products are indispensable for protecting personnel, equipment, and environment by preventing over-pressure in boilers, pressure vessels, and piping systems, adhering strictly to global safety codes and engineering standards.
Our commitment to rigorous quality control ensures that every **PSV** and **PRV** supplied is fully compliant with **ASME B16.34** (body integrity), **API 520** (sizing and selection), and **API 526** (flanged steel pressure relief valves) specifications. We offer various types, including spring-loaded Conventional Safety Valves, Balanced Bellows Safety Valves (for systems with variable back pressure), and Pilot-Operated Safety Valves (POSV) for precise opening at the set pressure. Our extensive range covers a vast spectrum of inlet and outlet sizes, pressure classes (ASME Class 150 to 2500), and materials, including Carbon Steel, Stainless Steel, and Nickel Alloys, suitable for steam, gas, and liquid service. We ensure certified performance and full material traceability (EN 10204 3.1/3.2 MTCs) for guaranteed system safety worldwide.
Safety Valve Standards (ASME B16.34, API 520, API 526 & ISO 4126)
Dipti Metal Industries supplies Safety Valves compliant with leading international standards for design, sizing, and critical safety certification. These standards are mandatory for regulatory compliance in over-pressure protection systems globally.
| Standard | Product Scope | Key Requirement | Size / Rating Focus |
|---|---|---|---|
| ASME B16.34 | Valves—Flanged, Threaded, and Welding End | Pressure-Temperature Ratings of Body | All Sizes & Classes |
| API 520 | Sizing, Selection, and Installation of Pressure-Relieving Devices | Sizing Calculations & Principles (Theoretical basis) | Process Applications |
| API 526 | Flanged Steel Pressure-Relief Valves | Orifice Sizes, Face-to-Face Dimensions & Standard Ratings | Inlet NPS 1" to 20", Class 150 to 2500 |
| API 527 | Seat Tightness of Pressure Relief Valves | Required Leakage Rates (Mandatory Tightness Testing) | All PSV/PRV |
| ISO 4126 | Safety devices for protection against excessive pressure | General Requirements, Testing, and Sizing Methods | International Standard Equivalent |
Notes:
- API 526 compliance is crucial for standardizing dimensions of pressure relief valves.
- API 527 ensures the valve seat maintains tightness up to a specified percentage of the set pressure.
- Safety devices must be sized according to API 520 (or equivalent) to ensure they can adequately relieve the maximum possible flow in an over-pressure event.
Material Grades & International Equivalents for Safety Valves
We supply Safety Valves and PRVs in body and trim materials designed to withstand the high temperatures, pressures, and corrosive nature of the fluid, ensuring the longevity of the critical safety system. This table highlights common grades.
| Material Category | ASTM / ASME (Primary Body) | DIN / EN (Europe Equiv.) | Trim Material (Typical) |
|---|---|---|---|
| Carbon Steel (Cast) | ASTM A216 WCB / WCC | 1.0619 (GS-C25) | SS 304, 316, Stellite |
| Low Temp CS (Cast) | ASTM A352 LCB / LCC | 1.0566 (G20Mn5) | SS 304, 316, Monel |
| Alloy Steel (Cast) | ASTM A217 WC6 / WC9 (Cr-Mo) | 1.7335 / 1.7380 | Alloy 600, Stellite |
| Stainless Steel (Cast) | ASTM A351 CF8 / CF8M (304/316) | 1.4308 / 1.4408 | SS 316, Duplex, Inconel |
| Duplex Steel (Cast) | ASTM A995 4A (CD3MN) | 1.4462 | Duplex, Super Duplex |
| Super Duplex (Cast) | ASTM A995 5A / 6A (CE3MN/CD3MCuN) | 1.4410 / 1.4501 | Super Duplex, Hastelloy |
| Nickel Alloys (Body) | ASTM A494 M35-1 (Monel) / CW6MC (Inconel) | 2.4360 / 2.4856 | Monel, Hastelloy, Inconel |
| Trim (Seats/Discs) | ASTM A182 F316 / F347 (Forged) | 1.4404 / 1.4550 | Stellite, Inconel (Hard-faced) |
Notes: Trim materials are typically harder, more corrosion/erosion-resistant than the body, often involving hard-facing (Stellite, Tantalum, Tungsten Carbide) or specific corrosion-resistant alloys (Monel, Hastelloy) to ensure safe and reliable reseating after discharge.
Safety Valve Sizing, Pressure Ratings & Types
Our Safety Valves adhere to dimensional standards laid out in API 526 for flanged valves and are designed and sized according to API 520 principles for maximum required relieving capacity (MRC).
- Pressure Safety Valve (PSV) Types:
- Conventional: Simple design, pressure acts directly on the disk.
- Balanced Bellows: Recommended when back pressure is variable or corrosive/fouling service is present.
- Pilot-Operated (POSV): Uses line pressure to create a seal, providing tighter seating and closer-to-set-point-performance.
- Inlet Size Range: From 1/2″ (DN15) up to 24″ (DN600), typically matched to the protected equipment.
- Outlet Size Range: From 1″ (DN25) up to 36″ (DN900), often larger than the inlet to handle expanded flow volume.
- Pressure Classes (ASME / PN): Body pressure ratings from ASME Class 150, 300, 600, 900, 1500, to Class 2500.
- Set Pressure: Calibrated and certified to open precisely at the customer's specified set pressure, ranging from low vacuum to over 6000 PSI.
- Common End Connections:
- Flanged Ends (Inlet & Outlet): Most common for process piping (RF, RTJ).
- Threaded Ends: Used for smaller inlet sizes (NPT).
- Butt-Weld (BW) Ends: For permanent, high-integrity connections (less common than Flanged).
All valves are subjected to rigorous testing, including seat tightness tests per API 527 to ensure compliance with zero-leakage or specified leakage rate requirements.
Critical Applications for Safety Valves (PRV/PSV)
Our Safety Valves are deployed in all industrial sectors where the risk of over-pressure from thermal expansion, chemical reaction, equipment failure, or fire exposure must be mitigated.
- Oil & Gas Exploration & Production: Protection of separators, storage tanks, and high-pressure wellhead equipment from uncontrolled pressure surges.
- Refineries & Petrochemical Plants: Mandatory protection for distillation columns, reactors, heat exchangers, compressors, and extensive piping networks.
- Power Generation (Boilers & Steam): Essential for protecting utility boilers, steam drums, superheaters, and steam lines from rupture due to excessive thermal pressure.
- Chemical Processing: Protecting vessels, reactors, and pipelines that handle corrosive, toxic, or volatile fluids where catastrophic failure is a severe safety risk.
- Air & Gas Compression Systems: Safeguarding air receivers, compressors, and pneumatic systems from damage due to unexpected pressure spikes.
- Marine & Offshore: Specialized low-temperature valves for protecting cryogenic tanks and systems that handle liquefied gases (e.g., LNG, LOX, LIN).
- Cryogenic & LNG Storage: Protecting cryogenic tanks and systems that handle liquefied gases (e.g., LNG, LOX, LIN).
Safety Valves Export Countries & Cities We Supply From India To
Dipti Metal Industries is a proud Worldwide Exporter, Global Supplier, Dealer, and Stockist of Safety Valves and PRVs, with an extensive network. We ensure timely and compliant delivery to major industrial hubs across the globe.
Explore Our Global Reach
- Austria: Vienna, Salzburg
- Belgium: Antwerp, Brussels, Ghent
- Bulgaria: Sofia, Plovdiv
- Croatia: Zagreb, Split
- Czech Republic: Prague, Brno
- Denmark: Copenhagen, Aarhus
- Estonia: Tallinn, Tartu
- Finland: Helsinki, Tampere
- France: Paris, Marseille, Lyon
- Germany: Frankfurt, Hamburg, Munich, Düsseldorf
- Greece: Athens, Thessaloniki
- Hungary: Budapest, Debrecen
- Ireland: Dublin, Cork
- Italy: Milan, Rome, Genoa
- Latvia: Riga, Daugavpils
- Lithuania: Vilnius, Kaunas
- Luxembourg: Luxembourg City
- Netherlands: Rotterdam, Amsterdam, The Hague
- Norway: Oslo, Bergen
- Poland: Warsaw, Krakow
- Portugal: Lisbon, Porto
- Romania: Bucharest, Cluj-Napoca
- Russia: Moscow, Saint Petersburg, Kazan
- Serbia: Belgrade, Novi Sad
- Slovakia: Bratislava, Košice
- Slovenia: Ljubljana, Maribor
- Spain: Madrid, Barcelona, Valencia
- Sweden: Stockholm, Gothenburg
- Switzerland: Zurich, Geneva, Basel
- Ukraine: Kyiv, Kharkiv, Odesa
- United Kingdom: London, Manchester, Aberdeen, Glasgow
- Afghanistan: Kabul, Kandahar
- Bahrain: Manama, Sitra
- Bangladesh: Dhaka, Chittagong
- Brunei: Bandar Seri Begawan
- China: Shanghai, Guangzhou, Tianjin, Shenzhen
- Hong Kong: Hong Kong City
- India: Mumbai, Delhi, Chennai, Kolkata, Bangalore, Hyderabad (Local Markets)
- Indonesia: Jakarta, Surabaya, Balikpapan
- Iran: Tehran, Mashhad
- Iraq: Baghdad, Basra
- Japan: Tokyo, Osaka, Nagoya
- Jordan: Amman, Irbid
- Kazakhstan: Nur-Sultan, Almaty
- Kuwait: Kuwait City, Ahmadi
- Laos: Vientiane, Luang Prabang
- Lebanon: Beirut, Tripoli
- Malaysia: Kuala Lumpur, Johor Bahru, Port Klang
- Myanmar: Yangon, Mandalay
- Nepal: Kathmandu, Biratnagar
- Oman: Muscat, Sohar, Salalah
- Philippines: Manila, Cebu
- Qatar: Doha, Ras Laffan
- Saudi Arabia: Riyadh, Jeddah, Dammam, Al Khobar, Jubail
- Singapore: Singapore City
- South Korea: Seoul, Busan, Ulsan
- Sri Lanka: Colombo, Kandy
- Syria: Damascus, Aleppo
- Taiwan: Taipei, Kaohsiung
- Thailand: Bangkok, Rayong, Laem Chabang
- UAE: Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah
- Uzbekistan: Tashkent, Samarkand
- Vietnam: Ho Chi Minh City, Hanoi, Da Nang
- Yemen: Sana'a, Aden
- Canada: Calgary, Edmonton, Vancouver, Toronto, Montreal
- Mexico: Mexico City, Monterrey, Guadalajara
- Panama: Panama City, Colón
- USA: Houston, Los Angeles, New York, Chicago, New Orleans
- Argentina: Buenos Aires, Cordoba
- Bolivia: La Paz, Santa Cruz
- Brazil: São Paulo, Rio de Janeiro, Salvador
- Chile: Santiago, Valparaíso
- Colombia: Bogota, Medellin
- Ecuador: Quito, Guayaquil
- Peru: Lima, Arequipa
- Uruguay: Montevideo
- Venezuela: Caracas, Maracaibo
- Algeria: Algiers, Oran
- Angola: Luanda, Huambo
- Egypt: Cairo, Alexandria, Port Said
- Ghana: Accra, Kumasi
- Kenya: Nairobi, Mombasa
- Libya: Tripoli, Benghazi
- Morocco: Casablanca, Rabat
- Mozambique: Maputo, Beira
- Nigeria: Lagos, Port Harcourt, Abuja
- Rwanda: Kigali, Rubavu
- South Africa: Johannesburg, Durban, Cape Town, Sasolburg
- Tanzania: Dar es Salaam, Mwanza
- Tunisia: Tunis, Sfax
- Uganda: Kampala, Gulu
- Australia: Sydney, Melbourne, Perth, Brisbane
- Fiji: Suva, Nadi
- New Zealand: Auckland, Wellington, Christchurch
- Papua New Guinea: Port Moresby, Lae
Why Choose Dipti Metal Industries for Your Safety Valve Needs?
- Critical Safety Expertise: As a leading Safety Valves Manufacturer and supplier, our expertise is focused on the most critical components of any plant. We prioritize certified designs (API 526/520) and non-compromising quality control to ensure total system safety.
- Unrivaled Expertise & Quality Assurance: Dipti Metal Industries adheres to ISO 9001 certified processes for both manufacturing and supply. We meticulously ensure all products provide rigorous QA and full material traceability with EN 10204 3.1/3.2 MTCs, guaranteeing every safety valve meets stringent ASME B16.34, API 526/527, and ISO 4126 standards for superior integrity and reliable protection.
- Comprehensive Product Range & Sizing: We offer the full spectrum of over-pressure protection, from standard **Conventional Safety Valves** and high-performance **Balanced Bellows** types to precision **Pilot-Operated Safety Valves (POSV)**, allowing accurate selection and sizing based on API 520 guidelines for any service (liquid, gas, steam).
- Expert Technical Consultation: Decades of specialized valve expertise enables our seasoned technical team to provide unparalleled guidance on valve sizing, set pressure calculation, back pressure compensation, and material selection (especially for corrosive or high-temperature steam service), ensuring the exact valve for your most critical safety requirements.
- Robust Worldwide Export & Logistics: As a dedicated worldwide exporter, Dipti Metal Industries guarantees efficient and reliable global delivery with comprehensive documentation support, including customs clearance assistance, ensuring smooth logistics and timely project completion across all continents.
- Competitive Pricing & Superior Value Proposition: Leveraging strategic global manufacturing capabilities and streamlined operations, Dipti Metal Industries consistently delivers premium quality, certified Safety Valves at highly competitive prices, ensuring regulatory compliance and ultimate safety without compromising project budget.
Get a Quote Today for Your Safety Valve Requirements!
Are you searching for dependable, high-performance Safety Valves / Pressure Relief Valves (API 526/520) that comply with specific international standards for your critical over-pressure protection needs? Contact Dipti Metal Industries, your expert global safety valve manufacturer, Safety Valve supplier, Safety Valve stockist, Safety Valve dealer, Safety Valve distributor, and Safety Valve exporter from Mumbai, India, today to discuss your specific requirements or to request a personalized, custom quote. Our knowledgeable and responsive team is dedicated to providing you with the most effective, safest, and most reliable PSV/PRV solutions that guarantee long-term operational excellence and safety in demanding industrial environments.
Price guidance (non-binding): USD 100.00–800,000.00 per unit depending on material, size, set pressure, type (Conventional/Pilot), capacity, quantity, and delivery terms. Final prices are quotation-based.
Safety Valves / PRV — Frequently Asked Questions
The terms are often used interchangeably, but technically: A Safety Valve (SV) is typically used for compressible fluids (gas, steam) and opens rapidly (pops) when the pressure exceeds the set point. A Relief Valve (RV) is typically used for incompressible fluids (liquids) and opens proportionally to the increase in pressure over the set point. Both are often grouped under the general term **Pressure Relief Valve (PRV)** or **Pressure Safety Valve (PSV)**.
API 520 provides the methods for sizing and selection of PRVs to ensure they have the correct relieving capacity to prevent overpressure. API 526 standardizes the dimensions (e.g., orifice sizes, face-to-face flange dimensions) for flanged steel PRVs, ensuring interchangeability and dimensional integrity across manufacturers. Our valves adhere to these standards, guaranteeing safety performance and fit-up.
A Balanced Bellows Safety Valve is used when the valve's outlet pressure (back pressure) is variable or is high. The bellows effectively isolates the top of the disc from back pressure, preventing back pressure fluctuations from affecting the set pressure and performance of the valve. It is also recommended for protecting internal parts from corrosive or fouling media.
The industry standard for seat tightness testing is API 527. This ensures that the valve does not leak when the system pressure is below the set pressure. Valves must hold zero or minimal leakage rates (depending on the medium) up to a specified percentage of the set pressure, typically 90%.
Contact Dipti Metal Industries, Your Ball Valve Manufacturer, Safety Valve Exporter, Safety Valve Supplier in Mumbai, India
Global export expertise: Seaworthy export packing • Line-wise bagging & tagging • Full documentation & TPI. We are a worldwide exporter of quality Safety Valves from Mumbai, India.