Nozzle Check Valve
Nozzle Check Valve
Axial flow check valve is a one-way valve, designed to reduce fluid resistance and avoid water hammer effect. Its valve flap moves along the center axis of the valve body, when the fluid flows in the positive direction, the valve flap opens; when the fluid flows in the reverse direction, the valve flap closes quickly to prevent backflow.
Technical Specifications
Materials:
Body:
Cast Steel：
ASTM A216 WCB, WCC | ASTM A352 Gr. LC3, LCB | ASTM A217 gr.B, C5, C12, WC6, WC9, WC12
Stainless Steel:
ASTM A351 CF8, CF3, CF8M, CF3M, CK20, CG8M, A351 CK3MCuN etc.
Duplex:
A890 Gr.4A, Gr. 6A (SAF2205, 2507 etc.)
Nickel Alloy:
Monel 400 | Inconel 600, 625 | Hastelloy C27, C22, B2 | Incoloy 800/800HT, 825 etc.
Ball:
ASTM A105 w/ENP | ASTM A350 Gr. LF2 w/ENP | ASTM A182 Gr. F316 | ASTM A182 Gr. F316 w/ENP
Stainless Steel | Duplex SS | Nickel Alloy etc.
Seat:
RPTFE | Nylon | Davilon | PEEK | Tek-Fil® | TFM
Stem:
ASTM A479 Type 410 | 17-4PH | XM-19 | ASTM A182 F316 | Stainless Steel | Duplex SS | Nickel Alloy etc.
Caliber Range
1/2“ to 24” | DN15 to DN600
Pressure Range
Class150 to 600 | PN10 to PN100
Operating Temperature
-29℃ to 425℃ | -20.2℉ to 797℉
Connection
RF | RTJ
Design Standard
API 6D | ASME B16.34 | GB/T 12224
Temperature Range
-60℃ to 200℃ | -76℉ to 392℉
Features And Benefits
This valve is driven by the spring, through the valve flap to the body of the pointing axis to realize the valve opening and closing.The valve body passage is designed as a wing streamlined, which helps the medium to flow through the passage quickly and does not produce noise.This valve can be assembled in the horizontal pipeline and vertical pipeline.
Excellent Sealing Performance
Provides reliable sealing effect, effectively prevents leakage and is suitable for a wide range of working conditions.
Compact And Lightweight
Small size and light weight, easy to install and maintain, suitable for places with restricted space.
Streamlined Passage
The fluid passage adopts streamlined design, which reduces fluid resistance and improves the efficiency of media passage.
Flexible Flap And Fast Closing
Flexible valve flap and quick closing support high operating efficiency and reduce the time of closing the valve.
Smooth Fluid Passage
Gentle fluid passage design, low fluid resistance, effectively reducing energy consumption.
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