DIN Double Borosilicate Window Visual Flow Indicator Sight Glass Valve DN15-DN150 PN16 -20°C to 185°C

Name: DIN Double Borosilicate Window Visual Flow Indicator Sight Glass Valve DN15-DN150 PN16 -20°C to 185°C
Brand: Wenzhou Xidelong Valve Co. LTD

Industrial-grade DIN Double Borosilicate Window Visual Flow Indicator with DN15-DN150 size range and PN16 pressure rating. Features ASTM B16.34 design standards, temperature range of -20°C to 185°C, and multiple material options including SS304, SS316, and carbon steel. Ideal for utilities, pharmaceuticals, food processing, and chemical applications.

Place of Origin China

Packaging Details Suitable Plywood Cases according to different valves structure

Connection Double Flange

Standard GB

Model Number Q641F

Pressure PN16

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Product Description

Product Overview

DIN Double Borosilicate Window Visual Flow Indicator Sight Glass Valve provides reliable visual verification of liquid flow direction and accurate flow rates in industrial piping systems. This precision instrument allows operators to monitor fluid color and clarity through high-quality borosilicate glass windows.

Technical Specifications

Standards Compliance

Design and Manufacturing: ASTM B16.34
Flange Connection: ASTI16.5
Test and Inspection: API598

Operating Parameters

Size Range: DN15 to DN150
Pressure Rating: GB PN16
Temperature Range: -20°C to 185°C

Dimensional Data

DIN Double Borosilicate Window Visual Flow Indicator technical dimensions and specifications

DN	H	L	D	D1	D2	Z-φd	b	W	φ	E
15	72	130	89	60.5	35	4-16	11.5	60×60	50	10
20	82	150	98	70	43	4-16	12	72×72	60	10
25	92	160	108	79.5	51	4-16	13	80×80	65	12
32	105	180	117	89	64	4-16	14	90×90	75	12
40	115	200	127	98.5	73	4-16	15	100×100	85	12
50	140	230	152	120.5	92	4-19	16	110×110	95	15