Sight glass for industrial applications Type 550V

monitoringfor vacuumATEX

This vacuum-rated flow sight glass (Type 550V) is designed for visual process monitoring of liquid and gaseous media and is supplied with flange connections according to DIN EN 1092-1 PN 10/16.

Product highlights

• High-quality gasket material: novaflon® 500 (100% pure, multidirectionally expanded PTFE) offering excellent chemical resistance, mechanical stability and outstanding sealing properties.
• Sealing system rated for a temperature range of -60 °C to +200 °C and compliant with TA-Luft (technical instructions on clean air).
• Proven suitability for vacuum applications down to 2 mbar absolute (verified by an independent external testing laboratory).
• Standard flange connections: DIN EN 1092-1 PN 10/16; manufactured to DIN 11869 (formerly DIN 3237).

Nominal sizes

• Available DN: 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200

Nominal pressure

• PN options: PN 10, PN 16

Temperature ratings

• Available temperature options / limits: -60 °C up to +200 °C (selectable values shown on product page: 80 °C, 130 °C, 150 °C, 175 °C, 180 °C, 200 °C)

Options (factory integrable)

• LED lights (also available with ATEX approval for explosion-prone areas on request)
• Oil- and grease-free design
• Silicone-free design including crater test

Execution / flange geometry

• DN 15 – 50: rectangular flanges
• DN 65 – 200: round flanges

Dimensions (selected values according to DIN 11869)

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

Materials and variants

• Standard product: stainless steel construction (standard materials detailed on product page).
• Other materials / alloys available on request (examples: 1.0619 cast steel, Alloy C22) to customer specification.

Applications / Quick overview

• Working pressure range: -0.998 to 16 barg
• Temperature range: -60 °C to 200 °C
• For liquid and gaseous media
• Nominal diameters: DN 15 – 200
• Accessories available; TÜV pre-tested

Technical characteristics / specifications

• Model / type: Type 550V
• Sealing material: novaflon® 500 (100% pure expanded PTFE)
• Vacuum suitability: proven down to 2 mbar absolute
• Nominal pressures: PN 10 and PN 16
• Temperature range: -60 °C to +200 °C (selectable operating temperatures)
• Flange standard: DIN EN 1092-1 PN 10/16; manufactured to DIN 11869 (old DIN 3237)
• Available DN sizes: 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200
• Execution: DN 15–50 rectangular flanges; DN 65–200 round flanges
• Options: LED lights (ATEX on request), oil/grease-free design, silicone-free design (crater test)
• Materials: stainless steel standard; other alloys (e.g., 1.0619, Alloy C22) on request
• Documentation: datasheet, drawing and info brochure available (see product documents)