MECH Water Flow Indicator UL/FM MODEL ZSJZYS

Model ZSJZYS

Connection ends: AWWA C606
Working pressure: 363 / 300 PSI (200 / 250 PSI on request)
Temperature: 0 – 68 °C
Coating: FBE — ANSI/AWWA C550
Electrical rating: 125/250 VAC 5A, 24/30 VDC 3A
Min. flow for alarm: 4 – 10 gpm
Approvals: UL / FM / CSFM (10" not UL/FM)
Sizes: 2" – 10" (DN50 – DN250)

Certificates & approvals

FM Approvals FM — MECH Waterflow Detector ZSJZYS Verify ↗
UL UL — MECH Waterflow Indicator ZSJZYS S35941 Verify ↗
EPD EPD — MECH Valves
Other GSK — MECH corrosion protection coating
NSF NSF/ANSI 372 — MECH fittings & valves, lead free (IAPMO R&T) 6047
NSF NSF/ANSI 61 — MECH fittings & valves (IAPMO R&T) N-5941

Build a submittal PDF for this product Certificates centre

SIZES & DIMENSIONS

Sizes & dimensions

Size	DN	R Pipe OD (mm)	A ±1.5 (mm)	B (mm)	C ±1.5 (mm)	D (mm)	E ±3 (mm)	Hole dia. +1.6/0 (mm)	Certificate
2"	DN50	60.3	116	100	63	140	83.5	30	UL/FM
2.5"	DN65	73	120	100	63	140	83.5	30	UL/FM
2.5"	DN65	76.1	122	100	63	140	83.5	30	UL/FM
3"	DN80	88.9	145	100	63	140	94	51	UL/FM
4"	DN100	114.3	185	100	63	140	94.5	51	UL/FM
5"	DN125	139.7	212	100	63	140	94.5	51	UL/FM
5"	DN125	141.3	212	100	63	140	94.5	51	UL/FM
6"	DN150	165.1	254	100	63	140	95	51	UL/FM
6"	DN150	168.3	254	100	63	140	95	51	UL/FM
8"	DN200	219.1	298	100	63	140	95	51	UL/FM
10"	DN250	273.0	381	100	63	140	97.5	70	—

PROJECT APPROVALS

Approved on projects

98 projects and 61 owners approved this product or its family through the project consultants.

All projects

Tatweer Buildings Company2024 Al Narjis & Al Bayan schools (terminated contracts program – Riyadh) Consultant: Samaa Engineering Consultation Approved Souq Riyadh2021 Souq Riyadh – fire alarm & firefighting Consultant: Tuwaiq Gate Engineering Consultants Approved Ministry of Interior2016 KAP-01 Security Projects – Ministry of Interior Consultant: Khatib & Alami Approved SASREF (Saudi Aramco)2026 SASREF – supplier registration Approved Umm Al Qura for Development & Construction (Masar)2026 Second Masar – prequalification (AAN) Approved Rakaa Holding2026 Rakaa project Consultant: ARIS Engineering Consultants Approved NIAN2026 Child Oxford Fertility Excellence – Riyadh Consultant: Balance Architects & Engineering Consultants Code A – Approved Lenovo2026 Lenovo project – firefighting valves Consultant: Savills / MAB Consult Approved Khaira Mountain Entertainment Company2026 Al Baha Resorts – Khaira Mountain & Ebda Adventure Park Consultant: Saudi Consult Approved Royal Commission for Jubail and Yanbu2026 Royal Commission for Jubail & Yanbu – prequalification Code B – Approved Riyadh Airports Company2026 New Operational Offices at TL3 & AOCC – King Khalid International Airport Consultant: Egis Approved MODON2026 MODON – Hail 1st Industrial City project (valves) Consultant: Egis Approved

and 86 more projects.

Original approval letters are provided on request with your submittal.

About this product

Dimensions: 2″ (DN50)-8″ (DN200) Design Standard: GB5135.7 UL 346 ULC-S548 FM1042 Connection Standard: ISO 6182 Working Pressure: PN25, PN16, 363PSI, 300PSI Minimum Flow Rate For Alarm: 4-10gmp (15-37.5L/min) Working Temperature: 0℃-68℃ Electrical Ratings: 125/250VAC 5A 24/30VDC 3A

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