Cast Iron Full-Lift Safety Valve Flanged DIN
TECHNICAL DESCRIPTION
Automatic full-lift safety valve, preventing critical pressure build-up in the system. Maximum unloading when reaching the set operating pressure. Full opening, at 5% overpressure from the valve setting.
When ordering a valve, please inform us of your requirements regarding valve capacity, fluid type, operating temperature, inlet size and the type of system in which it will be used.
ANNEX
• Water and steam treatment plants.
• Compressed air, technical and cryogenic gas treatment and storage plants.
• Thermal oil boilers, plants operating at high flow rates and chemical reactions involving exothermic processes.
WORKING FLUID / MEDIUM
• Water and steam.
• Thermal oil, fuels, lubricating oils and flammable hydraulic oils, petroleum, air, gas, non-flammable hydraulic fluids, boiler feed water, condensate.
OPTIONS
• Open lid with a forced opening handle.
Dimensions:DN 20 – 200
Our Cast Iron Full-Lift Safety Valve with Flanged DIN connection is engineered for maximum reliability in industrial pressure systems. Designed to meet rigorous DIN standards, this valve ensures optimal performance in steam, gas, and liquid applications where overpressure protection is critical. The full-lift mechanism provides rapid and complete opening, delivering high discharge capacity to safeguard equipment and processes effectively.Constructed from high-grade cast iron, this safety valve offers exceptional durability and corrosion resistance, making it suitable for demanding environments. The flanged connection ensures easy installation and secure sealing, compatible with standard DIN flanges for seamless integration into existing systems. Key features include:Full-lift design for maximum flow capacity and efficient pressure reliefFlanged connection compliant with DIN standards for interoperabilityRobust cast iron body for longevity and resistance to harsh conditionsPrecise pressure setting and blowdown adjustment for customized operationTested and certified for reliability in critical industrial applicationsIdeal for use in boilers, pressure vessels, and industrial piping systems, this valve is a trusted solution for preventing overpressure incidents. Its design prioritizes safety, performance, and compliance, ensuring peace of mind in high-stakes operational contexts. Choose our Cast Iron Full-Lift Safety Valve for dependable protection that meets the highest industrial standards.

Materials
| No. | DETAILS | MATERIALS |
|---|---|---|
| 1 | Body | grey cast iron EN-JL1040 |
| 2 | Spring cover | grey cast iron EN-JL1040 |
| 3.1 | Lifter from DN25x40 to 200x300 | malleable cast iron EN-JS1030 (GGG40) |
| 3.2 | Lifter DN 20x32 | stainless steel 1.4408 (AISI316) |
| 4 | Driver | stainless steel 1.4028 (AISI420) |
| 5 | Cap | grey cast iron EN-JL1040 |
| 6 | Valve | stainless steel 1.4028 (AISI420) |
| 7 | Separator | stainless steel 1.4028 (AISI420) |
| 8 | Saddle | stainless steel 1.4028 (AISI420) |
Features
| SPECIFICATION | |
|---|---|
| Standard | DIN |
| Joining | flanged EN 1092-2 |
| Lid connection | bolted |
| Execution | angular |
| DN / input | DN / outlet | G | D1 | D2 | L1 | L2 | H | H1 | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| DN 20 / Rn 16 | DN 32 / Rn 16 | 1/4" | 105 | 140 | 85 | 95 | 350 | 112 | 8.1 |
| DN 25 / Rn 16 | DN 40 / Rn 16 | 1/4" | 115 | 150 | 95 | 105 | 395 | 129 | 10 |
| DN 32 / Rn 16 | DN 50 / Rn 16 | 1/4" | 140 | 165 | 100 | 110 | 415 | 129 | 14 |
| DN 40 / Rn 16 | DN 65 / Rn 16 | 1/4" | 150 | 185 | 115 | 130 | 500 | 148 | 20 |
| DN 50 / Rn 16 | DN 80 / Rn 16 | 1/4" | 165 | 200 | 125 | 145 | 555 | 148 | 27 |
| DN 65 / Rn 16 | DN 100 / Rn 16 | 3/8" | 185 | 220 | 140 | 150 | 660 | 191 | 39 |
| DN 80 / Rn 16 | DN 125 / Rn 16 | 3/8" | 200 | 250 | 155 | 170 | 710 | 191 | 56 |
| DN 100 / Rn 16 | DN 150 / Rn 16 | 3/8" | 235 | 285 | 175 | 180 | 810 | 191 | 83 |
| DN 125 / Rn 16 | DN 200 / Rn 16 | 1/2" | 270 | 340 | 215 | 220 | 858 | 191 | 103 |
| DN 150 / Rn 16 | DN 250 / Rn 10 | 1/2" | 300 | 395 | 225 | 245 | 1029 | 247 | 149 |
| DN 200 / Rn 16 | DN 300 / Rn 10 | 1/2" | 360 | 445 | 265 | 290 | 1252 | 331 | 244 |







