Safety Heads / Rupture Discs | SITEC-Sieber

Image sourced from the manufacturer's official documentation; brand identity is never altered.

CATEGORY 01 H₂ Verified

Safety heads and rupture disc systems for overpressure protection.

10–7,000 bar

Brand	SITEC-Sieber Engineering AG — Switzerland
Category	High-Pressure Components
Catalogue page	720.05
Pressure / capacity	10–7,000 bar
Materials	AISI 316Ti / 17-4 PH (1.4571 / 1.4542)
Conformity	PED 2014/68/EU, category I, module A (category IV, max. 7,000 bar on request)
Burst discs	Ordered separately, incl. test certificate 3.1 (EN 10204)
H₂ compatibility	Confirmed by official documentation
Verification status	Verified
Documentation source	Compiled from official SITEC-Sieber Engineering AG documentation.

Final technical specifications are confirmed in writing with H2X before ordering.

Technical Data

From the Official Catalogue

Very simple protection against unintentional overpressure in HP systems and pilot units
Absolutely leak-proof, important for laboratory units
Direct installation in all tube connections of SITEC HP valves and fittings
Rupture discs on stock: flat-seat discs for low pressures and angular-seat models for 500 bar and above
Order by adding the burst pressure to the basic No. 728., e.g. 700 bar: 728.0700
Nominal burst pressure applies to static pressure loading at ambient temperature; tolerance ±10 % (±5 % above 200 bar possible)
Maximum operating pressure should not exceed 80 % of the nominal burst pressure; cyclic pressure, high temperature and corrosion reduce the actual rupture pressure

Source: official SITEC-Sieber product catalogue (page 720.05). Request the datasheet for model, part-number and dimension tables.