FM Approval 4/6 Inch Ductile Iron Durable Fire Alarm Check Valve

• Customization: Available
• Certification: GB8013-2005, GS, CCCF, CCC, CE, FM/UL
• Body Material: Cast
• Customized Support: ODM, OEM
• Warranty: 3 Years
• Color: Customized Color
• Applicable Medium: Air, Water, Gas, Oil
• System Type: Deluge System (Open Sprinkler System)
• Compatible System: Dry Fire Sprinkler System
• Valve Type: Diaphragm Type Deluge Valve
• Operation Type: Electric or Pneumatic
• Alarm Valve Diameter: 50mm-200mm
• Size Range: 2''-8''
• Transport Package: Wooden Box
• Specification: DN50-DN300
• Trademark: Maitolead
• Origin: Hebei, China
• HS Code: 8481804090
• Production Capacity: 1000000piece/Year
• Package Size: 123.00cm * 123.00cm * 62.00cm
• Package Gross Weight: 100.000kg

Product Description

The deluge alarm valve adopts a straight-through cone diaphragm sealing structure, utilizing the excellent self-sealing performance of the cone to achieve reliable valve opening and closing.

Under normal conditions, when the pressure inside the diaphragm chamber is balanced with the pipeline pressure, the diaphragm actuates the piston and connecting rod, keeping the valve disc in the closed position.

When the pressure in the diaphragm chamber is released by an electric control signal, the valve disc opens automatically, allowing water to flow in one direction into the sprinkler system while simultaneously activating the alarm.

The valve can be integrated with other system components to form various deluge alarm and fire protection systems, providing flexible and efficient fire suppression solutions.

This deluge alarm valve is suitable for automatic sprinkler systems installed in a wide range of facilities, including residential buildings, hospitals, hotels, shopping malls, factories, airports, casinos, libraries, stadiums, and convention and exhibition centers.

The recommended operating ambient temperature range is 4 °C to 52 °C.

Design Standard	ASME B16.42-2016
Flange Standard	Class 150/300, DIN2501,PN16/PN25
Grooved Standard	AWWA C606,ISO6182
Woking Temperature Range	4 °C to 52 °C(39.2-125.6°F)
Reserved alarm valve system interface	3/4'' NPT
Available Size	2''-8''
Maximum working Pressure	250PSI 300PSI
Maximum Testing Pressure	500psi/600psi
Valve can be activated remotely
Remote action control mode	electric or pneumatic
Connection	Grooved  and Grooved, Flange and Grooved, Flange and Flange
certificate	FM and UL

ABOUT US

Integrated Trading & Manufacturing · Multi-Factory Resources · Expert in Valve Export Solutions

We are a professional trading company dedicated to the export of valve products. While we do not manufacture valves ourselves, we maintain deep partnerships with several leading valve manufacturers in China and hold exclusive export authorization for five of these factories. Leveraging our strong supply chain integration capabilities, we provide both FM/UL certified premium products and cost-effective mid-range solutions, covering various engineering demands across different markets.

Our main product range includes:

Check Valves
Butterfly Valves
Strainers
Control Valves
Air Release Valves
BS5163 Resilient Seated Gate Valves
DIN Standard Resilient Seated Gate Valves
All our partner factories are equipped with advanced automated production lines, complete testing facilities, and professional R&D teams. With extensive design experience and strict quality control systems, we ensure every shipment meets the required project standards.

PRODUCT INFORMATION

Size	2''-12'' (DN 50-DN 300)
Grooved OS&Y Gate Valve Main Parts and Material	Body	Ductile iron as A536, 65-45-12
	Bonnet	Ductile iron as A536, 65-45-12
	Resilient wedge disc	Ductile iron as A536, 65-45-12 + EPDM
	Stem	SS304/SS304/SS420/SS431
	Yoke	Ductile iron as A536, 65-45-12
	Handwheel	Ductile iron as A536, 65-45-12
Flanged OS&Y Gate Valve Main Parts and Material	Body	Ductile iron as EN-GJS 450-10
	Bonnet	Ductile iron as EN-GJS 450-10
	Resilient wedge disc	Ductile iron as EN-GJS 450-10+EPDM
	Stem	SS304/SS304/SS420/SS431
	Yoke	Ductile iron as EN-GJS 450-10
	Handwheel	Ductile iron as EN-GJS 450-10
Butterfly Valve Main Parts and Material	Body	Ductile iron as A536, 65-45-12
	Shaft	SS431
	Disc	Ductile iron+EPDM/NBR
	Signal gearbox	Housing/cover: Ductile iron
	Worm	Carbon steel Or  Ductile iron
	Handwheel	Ductile iron as A536, 65-45-12
Certificate	Fire valve	FM/UL
	water valve	Wras
Standard	fire valve	UL 262/AWWAC 515,EN11 71,UL 1091/MSS SP-67
	water valve	GB/BS5163,DIN3352 F4 DIN F5,JIS,KS 10K,AWWA C515,ANSI
Connection	Grooved as AWWA C606, Flange as ASME B16.1,Flange as BS EN1092-2
Flange Standard	CLASS 150,PN10/16/25. Table D/E/F. 10K/16K/20K
Temperature	0℃-100℃
W.Pressure	350psi

Factory production

PRODUCTION LINE

OUR CERTIFICATE

Specification

PACKING&SHIPING

FAQ

1.Can I have a sample order for valve?
A: Definitely Yes.We welcome sample order to test and check quality. Mixed samples are acceptable. 

2. Can you OEM or ODM?
A:Yes, we have a great research & development team. The products can be made according to your request.

3. Can you provide the relevant documentation and certificate?
A:Yes, we can provide you with the documentation and certificate you need ,IS09001:2000 international quality system
certification,(CE)certification of the European Community, Det Norske Veritas (DNV) factory certification, Lloyd's Register
(LR)factory certification, China Classification Society (CCS) quality system certification and the FM and UL certification of the US,Bureau Veritas(BV) ,American Bureau of Shipping(ABS) etc.Of course we can also provide you the test Report; Certificate of Material Analysis; Certificate of Origin; and other export documents which required. 

4.Can you do the design for us?
A:yes.Please send us high resolutionimages,your logo and other materials needed . We will send you finished files for
confirmation.

5.What is your terms of delivery?
A: We accepte EXW,FOB,CIF,etc. You can choose the one which is the most convenient for you.

6.What's the package and how do you ship the goods?
A: Usually is wood pallet as your requst. We usually ship by sea.Airline shipping is also optional.

7. How to deal with after sales ?
A: warranty time : 12 months from the shipment ; and we will be responsible for all the quality problems. Quality control : High quality mold./Raw materials control/Production process quality control/Final inspection/Water testing (no leaking).

8. What is the average lead time?
A:For samples, the delivery time is about 2-5 days. For mass production, the lead time is about 15-60 days after receiving the deposit payment. we can provide production schedule and related photos every two weeks. The lead times become effective when (1)we have received your deposit, and (2) we have your final approval for your products.If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate our production plan to your needs.