Check Valves Flanged End

Flanged end check valves are primarily designed to prevent backflow in piping systems. These valves permit fluid to flow in only one direction. As the medium enters, the disc of the check valve lifts off its seat, enabling forward flow. When the flow ceases, the disc returns to the seat, effectively blocking any reverse flow.

Different Types of Check Valves Flanged End

ZHMIS-A1 Swing Type Check Valves Flanged End

ZHMIL-D1 DIN 3202-F1 PN10/16 Lift Type Check Valves Flanged End

ZHMSS-A1 SS Body Swing Type Check Valves Flanged End

ZHMWS-A1 WCB Body Check Valves Flanged End

ZHRIB-D1 DIN 3202 BALL TYPE Check Valves Flanged End

ZHMIS-D1 DIN 3202 Swing Type Check Valves Flanged End

ZHMSS-D1 DIN 3202 Swing Type Check Valves Flanged End

Check Valves Flanged End Technical Specifications

Class	Nominal diameter		Unit	Main connection dimension
Class	Inch	DN	Unit	L	D	D1	D2	b	z-∅d	H
150Lb (2.0Mpa)	2"	50	mm	203	152	120.5	92	16.3	4 - 19	161
	2-1/2"	65	mm	216	178	139.5	105	17.9	4 - 19	175
	3"	80	mm	241	190	152.5	127	19.5	4 - 19	190
	4"	100	mm	292	229	190.5	157	24.3	8 - 19	203
	5"	125	mm	330	254	216	186	24.3	8 - 22	229
	6"	150	mm	356	279	241.5	216	25.9	8 - 22	257
	8"	200	mm	495	343	298.5	270	29	8 - 22	292
	10"	250	mm	622	406	362	324	30.6	12 - 25.4	355
	12"	300	mm	698	483	432	381	32.2	12 - 25.4	398
	14"	250	mm	787	533	476.5	413	35.4	12 - 29	460
	16"	400	mm	864	597	539.5	470	37	16 - 29	495
	18"	450	mm	978	635	578	533	40.1	16 - 32	520
	20"	500	mm	978	698	635	584	43.3	20 - 32	590
	24"	600	mm	1295	813	749.5	692	48.1	20 - 35	650

Flanged Check Valve Dimensions

Flanged check valves are vital components in fluid control systems, and understanding their dimensions is essential for ensuring proper installation and compatibility within piping networks. These valves are designed to prevent backflow, allowing fluid to flow in one direction only. The dimensions of flanged check valves typically include nominal pipe size (NPS), which indicates the internal diameter of the valve and can range from 1 inch to 24 inches, accommodating various applications.

The face-to-face dimension is a key measurement that dictates how much space the valve occupies in the piping system. This dimension is standardized according to industry norms, allowing for seamless integration with existing systems. Proper face-to-face dimensions help prevent installation issues that could lead to leaks or system inefficiencies.

Flange dimensions are equally important, as flanged check valves are secured to piping systems using bolts. The bolt hole configuration, bolt circle diameter, and the number of bolt holes must align with the corresponding flanges to ensure a secure and leak-proof connection. Compliance with standards such as ANSI or ASME is crucial for achieving this compatibility.

In addition to these dimensions, it is important to consider the overall height of the flanged check valve, which can vary based on size and design. Adequate height is essential for maintaining proper clearance in vertical installations and ensuring ease of maintenance.

Furthermore, flanged check valves are available in various pressure ratings, indicating their ability to withstand specific pressure levels. Common pressure classes include 150, 300, and 600 psi, making these valves suitable for diverse operating conditions.

Check Valves Flanged End Installation

Q Check Valves Flanged End Installation1

A.

Check Valves are designed to prevent the medium in the pipeline from flowing back.

Q Check Valves Flanged End Installation2

A.

Check valves rely on a pressure differential to work. Unlike other valves, they do not need a handle, lever, actuator, or human to correctly work.

Q Check Valves Flanged End Installation3

A.

Check valves are one way valves. The disc of check valves swing off the seat to allow forward flow, and when pressure reaches zero, the valve shuts fully to prevent backflow. Check Valves are commonly installed in applications where backflow would cause an issue. As they are non return valves, they are a cheap, effective, and easy solution to solve a potential issue.

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