Diaphragm seals of sandwich design

• DN 50

PN 16 ... PN 100

• DN 80

PN 16 ... PN 100

• DN 100

PN 16 ... PN 100

• DN 125

PN 16 ... PN 100

• 2 inch

Class 150 ... class 2500

• 3 inch

Class 150 ... class 2500

• 4 inch

Class 150 ... class 2500

• 5 inch

Class 150 ... class 2500

Sealing face

• For stainless steel, mat. No. 1.4404/316L

To EN 1092‑1, form B1 or

ASME B16.5 RF 125 … 250 AA

• For the other materials

To EN 1092‑1, form B2 or

ASME B16.5 RFSF

Materials

• Main body

Stainless steel, Mat. No. 1.4404/316L

• Wetted parts materials

Stainless steel, Mat. No. 1.4404/316L

• No coating

• PTFE coating (for low-pressure on request)

• ECTFE coating (for low-pressure on request)

• PFA coating (for low-pressure on request)

Monel 400, mat. No. 2.4360

Hastelloy C276, mat. No. 2.4819

Hastelloy C4, mat. No. 2.4610

Tantalum

• Capillary

Stainless steel 1.4571/316Ti

• Sheath

Spiral hose made of stainless steel, mat. No. 1.4301/316

Sealing material in the process flanges

• For pressure transmitters, absolute pressure transmitters and low-pressure applications

Copper

• For other applications

Viton

Maximum pressure

See above and the technical data of the pressure transmitters

Tube length

Without tube as standard (tube available on request)

Capillary

• Length

Max. 10 m (32.8 ft), longer lengths on request

• Internal diameter

Max. 2 mm (0.079 inch)

• Minimum bending radius

150 mm (5.9 inch)

Filling liquid

Silicone oil M5

Silicone oil M50

High-temperature oil

Halocarbon oil (for measuring O₂)

Food oil (FDA-listed)

Glycerin/water (not suitable for use in low-pressure range)

Permissible ambient temperature

Dependent on the pressure transmitter and the filling liquid of the remote seal

More information can be found in the technical specifications of the pressure transmitters and in the section "Technical data of filling liquid" in the introduction to the remote seals

Weight

Approx. 4 kg (8.82 lb)

Certificates and approvals

Classification according to pressure equipment directive (PED 97/23/EC)

For gases of fluid group 1 and liquids of fluid group 1; complies with requirements of article 3, paragraph 3 (sound engineering practice)