Sight glass for industrial applications Type 550

monitoringATEXstainless steel

The ACI Flow sight glass type 550 is an industrial sight glass for visual monitoring of media in pipelines under working pressure. Its body is manufactured from stainless steel casting 1.4408 and is designed for installation between DIN EN 1092-1 flanges.

Key features

• Nominal sizes: DN 15 – DN 200
• Nominal pressure: PN 10 / PN 16 / PN 25 / PN 40 (max. 40 barg)
• Temperature range: -196 °C to +400 °C (dependent on glass and gasket choice)
• Suitable for liquid and gaseous media
• Flange connections: DIN EN 1092-1

Materials & variants

• Standard body material: stainless steel casting 1.4408
• Other materials on request: 1.0619 (cast steel), Alloy C22 and other alloys
• Gasket system: flat gaskets from leading manufacturers (e.g. Frenzelit novaphit® MST XP; KlingerSil® C4400; Garlock Gylon®; PTFE pure or modified)
• More than 50 gasket materials available on request

Protective coatings & protection

• HALAR® coating
• FEP coating
• Mica protection disc for the sight glass

Options & accessories (factory-integratable)

• Sight glass wiper SGW with blades in PTFE, silicone, or EPDM
• LED illumination (ATEX-certified versions available on request)
• Spraying / cleaning devices
• PTFE rotor
• Oil- and grease-free execution; silicone-free designs including crater test available

Dimensions (selected values according to DIN 11869)

• DN 15 — D (PN16)=95, D (PN25)=95, D (PN40)=95, BL=130, D1=32
• DN 20 — D (PN16)=105, D (PN25)=105, D (PN40)=105, BL=150, D1=32
• DN 25 — D (PN16)=115, D (PN25)=115, D (PN40)=115, BL=160, D1=48
• DN 32 — D (PN16)=140, D (PN25)=140, D (PN40)=140, BL=180, D1=48
• DN 40 — D (PN16)=150, D (PN25)=150, D (PN40)=150, BL=200, D1=65
• DN 50 — D (PN16)=165, D (PN25)=165, D (PN40)=165, BL=230, D1=80
• DN 65 — D (PN16)=185, D (PN25)=165, D (PN40)=165, BL=290, D1=80
• DN 80 — D (PN16)=200, D (PN25)=185, D (PN40)=185, BL=310, D1=100
• DN 100 — D (PN16)=220, D (PN25)=200, D (PN40)=200, BL=350, D1=125
• DN 125 — D (PN16)=250, D (PN25)=235, D (PN40)=235, BL=400, D1=150
• DN 150 — D (PN16)=285, D (PN25)=270, D (PN40)=270, BL=480, D1=175
• DN 200 — D (PN16)=340, D (PN25)=360, D (PN40)=375, BL=600, D1=175

Quick overview

• Maximum working pressure: up to 40 barg
• Temperature range: -196 °C to +400 °C (application dependent)
• For both liquid and gaseous media
• Nominal sizes: DN 15–200
• More than 50 gasket materials available
• Accessories and factory-integrated options available
• Pre-tested / certified quality (TÜV)

Technical specifications

• Designation: Flow sight glass type 550
• Body material: stainless steel casting 1.4408 (other materials on request)
• Flange standard: DIN EN 1092-1 (PN 10 / PN 16 / PN 25 / PN 40)
• Nominal sizes: DN 15 – DN 200
• Pressure rating: PN 10 / PN 16 / PN 25 / PN 40 (max. 40 barg)
• Temperature range: -196 °C to +400 °C (depending on glass and gasket selection)
• Gasket options: Frenzelit novaphit® MST XP; KlingerSil® C4400; Garlock Gylon®; PTFE; and >50 other materials
• Optional coatings: HALAR®, FEP; mica protection disc
• Available accessories: sight glass wiper SGW, LED lights (ATEX on request), spraying devices, PTFE rotor
• Certifications: TÜV (ISO 9001 and applicable module/2014/68/EU references shown on product page)