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Extraction check valve

Product Overview

The suction check valve is suitable for pipeline under nominal pressure PN20.0 ~ 32.0mpa and working temperature ≤540℃(including P(57)170V working temperature 570℃) in petroleum, chemical, hydraulic, thermal power stations and other working conditions.
Applicable medium: water, oil, steam, etc.

Structural characteristics

1. The product is designed and manufactured according to E101 and JB / t3595 standards, with reasonable structure and excellent performance;
2. The middle chamber of the valve adopts pressure self tightening sealing structure. The higher the medium pressure is, the better the sealing performance is;
3. Both ends of the branch pipe are butt welded to meet different requirements of the nozzle;
4. The sealing surface of valve disc and valve seat is made of Stellite cobalt based cemented carbide, which is wear-resistant, high-temperature resistant, scratch resistant and has long service life;
5. High temperature and pressure resistant parts are made of high-quality heat-resistant alloy steel, safe and reliable, stable performance and long service life.

Execution standard

Design specification :JB/T3595
Structure length :GB/T12221GB/T 15188.1
Welding groove :JB/T3595
Test and inspection :JB/T 3595
Pressure-temperature :JB/T 3595

Performance parameter

Nominal diameter: NPs 8 ″ - NPs 42 ″
Pressure range: Class 150 ~ 600Lb
Working temperature: ≤ 540 ℃
Applicable media: water, oil and steam
Main material: WCB, wc6

Product Dimensions

NPS(in) L d D H WT (kg)
H664H150Lb        H664Y150Lb
18 740 428 476 990 620
20 790 468 520 990 759
28 1040 685 747 1240 1258
36 1448 880 934 1510 1990
42 1600 1000 1080 2080 2287
H664H300Lb        H664Y300Lb
8 526 195 239 815 236
12 610 300 354 845 1537
H664H600Lb
10 680 250 302 904 385
20 1020 480 584 1240 1537
H664H600LbC6        H664Y600LbC6
8 526 195 239 815 227

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