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300PSI Fire Fighting Valves Swing Cast Iron Check Valve AWWA C508 Standard

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Address: No. 18, Fengshun Road, Tongle, Longgang District, Shenzhen City, Guangdong, China

Contact name:Sales Manager

Winan Industrial Limited

300PSI Fire Fighting Valves Swing Cast Iron Check Valve AWWA C508 Standard

Country/Region	china
City & Province	shenzhen guangdong
Categories	Valves

Product Details

Introduction

The check valve is a valve that opening and closing member is a circular flap and acts on its own weight and medium pressure to block the flow of the medium. The flap motion mode is divided into lift type and swing type. The lift check valve is similar in construction to the shut-off valve and lacks only the valve stem that drives the flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). When the inlet pressure is greater than the sum of the valve weight and its flow resistance, the valve is opened. Conversely, the valve closes when the media is reversed. The swing check valve has a valve that is inclined and rotatable about the shaft, and operates in a similar manner to the lift check valve. Check valves are often used as bottom valves for pumping devices to prevent backflow of water.

Size Chart

SIZE ITEM	2〃	2-1/2〃	3〃	4〃	5〃	6〃	8〃	10〃	12〃
SIZE ITEM	2〃	2-1/2〃	3〃	4〃	5〃	6〃	8〃	10〃	12〃
Dn	51	64	80	100	126	152	204	254	302
L	203	216	241	292	330	356	495	622	698
D	152	178	191	229	254	279	343	406	483
c	120.5	139.5	152.5	190.5	216	241.5	298.5	362	432
n-d	4-ᵠ19	4-ᵠ19	4-ᵠ19	8-ᵠ19	8-ᵠ22	8-ᵠ22	8-ᵠ22	12-ᵠ25	12-ᵠ25
H	142	148	163.5	172	237	233	301	348	419

Technical Specification

Design Standard: AWWA C508

Norminal Pressure:300PSI

Working Temp: -20°C~110°C

Flange Standard: ANSI B16.1 Class 125

Both inside and outside of the body need Epoxy Resin Coating

Company Information

The Shenzhen Winan Industrial Development Co., Ltd. was set up in 1995 with registered capital of 13,680,000RMB. We specialized in manufacturing fire-fighting Equipment for 20 years and we devote to provide clients with high quality & reliable products.
The company now has a large area of industrial workshops of more than 10000 square meters. We possess all kinds of advanced producing equipments, sophisticated manufacturing process and modernized testing center. Our products contain foam system, sprinkler system, fire monitors, fire hydrant, water mist system and valves.
Winan fire-fighting passed the ISO9001:2000 Quality Management System Certification in 2001 and we also passed the CCC Product Quality Certification of Ministry of Public Security fire products in 2004. Products manufactured by Winan fire-fighting were assessed as the “Chinese high-quality brand-name products" by Chinese Quality Management Juries. The company was assessed as the “AAA" honest enterprise by Ministry of Commerce Economic Academy and it is the member of Chinese Fire Protection Association.

Certification