Stainless Steel Wafer Check Valve
I. Introduction:
The main features of the H71W stainless steel wafer check valve include very low water hammer pressure, short disc stroke, lightweight disc, spring-assisted closing, and fast closing speed. It has a very short structural length, small volume, and light weight, which brings great convenience to the installation, handling, storage of the valve and the layout of pipelines, and can also save a large amount of materials and reduce costs. Lift check valves are divided into vertical and horizontal types. Swing check valves are divided into single-disc, double-disc, and multi-disc types. Butterfly check valves are straight-through type. The above types of check valves can be divided into threaded connection, flange connection, and welding connection in terms of connection forms. They are widely used in textile, power station, petrochemical, heating and cooling, pharmaceutical, shipbuilding, metallurgy, light industry, environmental protection and other fields.
II. Features:
The main features of the stainless steel wafer check valve include very low water hammer pressure, short disc stroke, lightweight disc, spring-assisted closing, and fast closing speed. It has a very short structural length, small volume, and light weight, which brings great convenience to the installation, handling, storage of the valve and the layout of pipelines, and can also save a large amount of materials and reduce costs.
III. Technical Parameters:
Nominal pressure or pressure class: PN1.0-16.0MPa, ANSI CLASS 150-900, JIS10-20K
Nominal diameter or caliber: DN15～900, 1/4 ～36
Connection method: Flange, butt welding, thread, socket welding, etc.
Applicable temperature: -196℃～540℃
Valve body materials: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8(304), CF3(304L), CF8M(316), CF3M(316L), Ti.
By selecting different materials, it can be applied to various media such as water, steam, oil products, nitric acid, acetic acid, oxidizing media, urea, etc.
IV. External Dimensions:
Nominal Diameter DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | |
Structural Length | Long Series | 25 | 31.5 | 35.5 | 40 | 45 | 56 | 63 | 71 | 80 | 110 | 125 | 160 |
Short Series | 16 | 19 | 22 | 28 | 31.5 | 40 | 46 | 50 | 60 | 90 | 105 | 140 | |
V. Parts Materials:
Specification Model | Valve Body | Disc | Spring |
H71H-16Q, H71H-25Q | QT400-15 | 25 | 50CrCA |
H71W-25H, H71W-40H | 2Cr13 | 1Cr13 | 1Cr18Ni9Ti |
H71W-16P, H71W-25P | ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
| Machinery & Equipment/Valves/Check Valves | |
