Diaphragm seals of flange design with flexible capillary

Nominal diameter

Nominal pressure

• DN 50 (only recommended for pressure transmitters for gauge pressure)

PN 10/16/25/40, PN 100

• DN 80

PN 10/16/25/40, PN 100

• DN 100

PN 10/16, PN 25/40

• DN 125

PN 16, PN 40

• 2 inch (only recommended for pressure transmitters for gauge pressure)

Class 150, class 300, class 400/600, class 900/1500

• 3 inch

Class 150, class 300, class 600

• 4 inch

Class 150, class 300, class 400

• 5 inch

Class 150, class 300, class 400

Sealing face

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

Acc. to EN 1092?1, form B1 or

ASMR B16.5 RF 125 … 250 AA

• For other materials

Acc. to EN 1092?1, form B2 or

ASME B16.5 RFSF

Materials

• Main body

Stainless steel, mat. no. 1.4404/316L

• Wetted parts

Stainless steel, mat. no. 1.4404/316L

• No coating

• PTFE coating

• ECTFE coating (for low pressure on request)

• PFA coating

Monel 400, mat. no. 2.4360

Hastelloy C276, mat. no. 2.4819

Hastelloy C4, mat. no. 2.4602

Hastelloy C22, mat. no. 2.4602

Tantalum

Titanium, mat. no. 3.7035

Nickel 201

Duplex 2205, mat. no. 1.4462

Stainless steel 316L, gold plated, layer thickness approx. 25 µm

• Capillary

Stainless steel 1.4571/316Ti

• Sheath

Stainless steel protective tube, mat. no. 1.4301/304

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 transmitter

Tube length

Standard products without tube (tube available on request)

Capillary

• Length

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

• Internal diameter

2 mm (0.079 inch)

• Minimum bending radius

150 mm (5.9 inch)

Fill fluid

(for remote seals of sandwich and flange design)

Silicone oil M5

Silicone oil M50

High-temperature oil

Halocarbon oil (for measuring O₂)

Food oil (FDA-listed)

Permissible ambient temperature

Dependent on the pressure transmitter and the fill fluid of the remote seal

More information can be found in the technical specifications of the pressure transmitters and in the section "Technical specifications of fill fluid" in the technical description of the remote seals.

Weight

Approx. 4 kg (8.82 lb)

Certificates and approvals

Classification according to pressure equipment directive (PED 2014/68/EU)

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