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Seetru
Pressure Relief Valve and Level Indicator

Safety Relief Valves – Engineering Safety

Seetru safety and relief valves are designed to provide maximum safety in pressurized systems.

  • Pressure range: 0.3 bar – 700 bar

  • Material options: brass, bronze, stainless steel

  • Connection types: threaded, flanged, welded, tri-clamp

  • Application areas: steam, air, gas, liquid, cryogenic fluids

Seetru valves set the standards for industrial safety with their production in accordance with international standards (PED, ASME, WRAS, TÜV) and long service life.

Why Seetru Safety Valves

  • High precision opening-pressure tolerance

  • Compact and robust design – easy to install even in tight spaces

  • Easy maintenance – long-lasting component structure

  • Comprehensive certification and quality control

  • Made in the UK – global engineering assurance

Seetru valves offer optimum performance in all sectors requiring process safety.

Resim
Marka
Model
Detay
Katalog
Seetru
LGS HI-FLOW

  • Suitable for liquid, gas and steam applications

  • Enclosed discharge design.
    It has wide outlet connections to provide higher flow capacity.

  • Bronze

  • 1/2" – 2 1/2" BSP threaded female connections

  • 0.2 – 24 bars

Catalog
Seetru
646

  • Enclosed Discharge

  • Stainless steel

  • 3/8” – 1 1/2” (varies depending on passage diameter)

  • 6.6 – 55.2 bar (varies depending on passage diameter)

Catalog
Seetru
LGS

  • Suitable for liquid, gas and steam applications.

  • Enclosed discharge design.
    It has a dual-guided spindle structure and Seetru Rock-Seal™ technology.

  • Bronze

  • 1/2" – 2 1/2" BSP threaded female connections
    (1/2" – 2" BSP for LGS HI-FLOW models)

  • 0.2 – 24 bars

Catalog
Seetru
936

  • Enclosed Discharge
    Brass inlet connection, body part is available in bronze or stainless steel options.
    It has a metal-to-metal sealing structure.

  • 1/2" – 2" BSP, BSPT or NPT threaded connections

  • 0.3 – 28.0 bars

Catalog
Seetru
946

  • Enclosed Discharge
    Stainless steel

  • 1/2” – 2” threaded connections (varies depending on valve passage diameter)
    0.3 – 28.0 bar (varies depending on valve passage diameter)

Catalog
Seetru
75008

  • Open discharge (Atmospheric Discharge)

  • Rice

  • 1/4” – 1/2”

  • 0.27 – 5.0 bar

Catalog
Seetru
6L0

  • Enclosed Discharge

  • Stainless steel

  • 1/2” – 1” TRI-CLAMP connections

  • 0.7 – 30.0 bar

Catalog
Seetru
980 Gear

  • Stainless steel

  • 10 mm, 15 mm, 20 mm and 25 mm options are available.

  • 1/2” – 2” threaded connections (varies depending on valve passage diameter)

  • 0.3 – 36.0 bar (varies depending on valve passage diameter)

Catalog
Seetru
970 Gear

  • Closed discharge

  • Brass inlet; bronze or stainless steel body (depending on passage diameter). Stainless steel disc.

  • 1/2” – 2” threaded connections

  • 0.3 – 36 bars

Catalog
Seetru
680

  • Closed discharge

  • Stainless steel

  • 3/8” – 2”

  • 0.7 – 30 bars

Catalog
Seetru
670/690

  • Closed discharge

  • Bronze or stainless steel

  • 3/8” – 2”

  • 0.7 – 30 bars

Catalog
Seetru
346/356

  • Closed discharge

  • Bronze or stainless steel

  • 3/8” – 3/4”

  • 0.83 – 30.76 bars

Catalog
Seetru
636

  • Closed discharge

  • Bronze

  • 3/8” – 1 ½” (depending on valve passage diameter)

  • 6.6 – 55.2 bar (depending on valve passage diameter)

Catalog
Seetru
319

  • Open discharge

  • Rice

  • 3/8” – 1/2” or 7/8” x 14 UNF (depending on valve passage diameter)

  • 13.5 – 55.2 bars

Catalog
Seetru
64613/64113 FL

  • Closed discharge

  • Stainless steel

  • DN20 (3/4”) or DN25 (1”) DIN or ANSI flanges

  • 0.32 – 49 bars

Catalog
Seetru
98010 FL

  • Closed discharge

  • Stainless steel

  • 10 mm

  • 1/2” threaded connection

  • 0.3 – 36 bars

Catalog
Seetru
94615 FL

  • Enclosed Discharge

  • Stainless steel

  • DN15 (1/2”), DN20 (3/4”) or DN25 (1”) flange connections are available with DIN EN 1092 and ANSI flange options.

  • 0.3 – 28.0 bars

Catalog
Seetru
94610 FL

  • Enclosed Discharge

  • Stainless steel

  • DN15 (1/2”), DN20 (3/4”) or DN25 (1”) flange connections are available with DIN EN 1092 and ANSI flange options.

  • 0.3 – 28.0 bars

Catalog
Seetru
98015 FL

  • Enclosed Discharge

  • Stainless steel

  • DN15 (1/2”), DN20 (3/4”) or DN25 (1”) flange connections are available with DIN EN 1092 and ANSI flange options.

  • 0.3 – 33.0 bars

Catalog
Seetru
94605 - 946H5 - 95605 - 956H5

  • Enclosed Discharge

  • Stainless steel

  • ½” NPT, BSP and BSPT | 9/16” Tapered & Threaded | 3/4” Tapered & Threaded connections

  • 35.0 – 515 bar (Model 9 605) / 35.0 – 1100 bar (Model 9 6H5). Maximum set pressure for steam applications is 85 bar.

Catalog
Seetru
6G6/6G1

  • Enclosed Discharge

  • Stainless steel

  • 1/2” – 1” Tri-Clamp connections (varies depending on valve passage diameter)

  • 0.32 – 55.2 bar (varies depending on valve passage diameter)
    The maximum set pressure for steam applications is 12 bar.

Catalog
Seetru
B4605/B6605/359

  • Enclosed Discharge

  • Stainless steel

  • 3/8” and 1/2”

  • 35.0 – 500.0 bars

Catalog
Seetru
33110/34110/34410

  • Enclosed Discharge

  • Brass or stainless steel body and stainless steel inlet connections

  • 3/8” – 1/2” threaded inlet connections

  • 27 – 36 bar and 48.3 – 241.3 bar

Catalog
Seetru
86810

  • Enclosed Discharge

  • Brass and PPS plastic (polyphenylene sulfide)

  • 1/2” – 3/4”

  • 7.0; 8.0; 9.3; 10.0; 10.5; 11.0; 11.5; 14.5 and 16.0 bars

Catalog
Seetru
63608

  • Enclosed Discharge

  • Brass and PPS plastic (polyphenylene sulfide)

  • 0.3..13.2 bars

Catalog
Seetru
646/601

  • Enclosed Discharge

  • Stainless steel

  • 3/8” – 2”

  • 6.6 – 55.2 bars

Catalog
Seetru
636/631&656/651

  • Enclosed Discharge

  • Bronze

  • 3/8” – 2”

  • 0.32 – 55.2 bars

Catalog
Seetru
55004

  • Open discharge (Atmospheric Discharge)

  • Brass - Stainless steel

  • 3/8” – 2”

  • 69.0 - 448.2 bar (3/8” and 1/2”) / 69.0 - 345.0 bar (1/4”)

Catalog
Seetru
31210

  • Open discharge (Atmospheric Discharge)

  • Rice

  • 3/8” – 3/4”

  • 20.6 - 134.5 bars

Catalog
Seetru
31180

  • Open discharge (Atmospheric Discharge)

  • Rice

  • 1/4” – 3/8”

  • 20.6 - 134.5 bars

Catalog
Seetru
31140

  • Open discharge (Atmospheric Discharge)

  • Rice

  • 2” (2 1/2” possible using adapter)

  • 2.8 – 9.4 bar (lower ranges: 2.8 – 3.8; 4.3 – 4.5; 5.5; and 7.7 – 9.4 bar)

Catalog
Seetru
106/116

  • Open discharge (Atmospheric Discharge)

  • Brass - Aluminum

  • 1" - 2”

  • 0.5 to 12.0 bar

Catalog
Seetru
74008

  • Open discharge (Atmospheric Discharge)

  • Stainless steel

  • 1/4" - 1/2"

  • 0.27 . 17.5 Bar

Catalog
Seetru
616/611

  • Open discharge (Atmospheric Discharge)

  • Rice

  • 1/4" - 2"

  • 2.55 Bars

Catalog
Seetru
848/841

  • Open discharge (Atmospheric Discharge)

  • Stainless steel

  • 1/4" - 2"

  • 0.55 - 21 Bar

Catalog
Seetru
818/811

  • Open discharge (Atmospheric Discharge)

  • Rice

  • 1/4" - 1"

  • 0.48 - 50.9 Bar

Catalog
Seetru
33020/34020/34320

  • Enclosed Discharge

  • Brass or stainless steel body and stainless steel inlet connections

  • 3/8” – 1/2” threaded inlet connections

  • 55 bar and 103.4 bar

Catalog
Seetru
73008

  • Open discharge (Atmospheric Discharge)

  • Rice

  • 1/4" - 1/2"

  • 0.27 . 17.5 Bar

Catalog

Industrial Applications

Application Areas

  • Steam systems: Safe evacuation of boilers and steam lines

  • Hydrogen Applications

  • Compressed air and gas systems: Compressor and air tank protection

  • Chemical processes: Stainless steel housing for corrosive fluids

  • Cryogenic applications: Special design for liquefied gas (LPG, LNG, N₂, O₂)

  • Food and beverage industry: Hygienic valve solutions with tri-clamp connection

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