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Station check valve

Product Overview

The check valve of power station is suitable for the pipelines of petroleum, chemical, hydraulic and thermal power plants with nominal pressure of pn20.0 ~ 32.0mpa, working temperature ≤ 540 ℃ (including P (57) 170V and working temperature of 570 ℃). Suitable media are: water, oil, steam, etc.

Structural characteristics

1. Pressure self-tightening sealing structure is adopted, and the two ends of branch pipes are welded.
2. Plane O-ring seal is adopted, and the seat is surfacing welded by stainless steel.
3. During the hydrostatic test, the plugging plate shall be loaded. After the hydrostatic test, the plugging plate shall be taken out and the hydrostatic test may be carried out for many times.

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 size: NPS 22 "~ NPS 28" DN350 ~ DN1000
Pressure range: PN20.0 ~ 32.0mpa
Operating temperature: ≤540℃
Applicable medium: water, oil, steam
Main material: WCB,12Cr1MoV,WC6,WC9

Product Dimensions

DN(mm) / NPS(in) L d D H
22"SD61X-600Lb 1295 500 586 655
28"SD61X-900LbC9 1753 608 762 1012
22"SD61X-3000LbC9 1499 330 580 970
22"SD364Y-600Lb 1295 500 584 700
34"SD364Y-600Lb 1753 778 882 1044
22"SD364Y-900Lb 1455 476 570 910
28"SD364Y-900Lb 1753 608 762 1007
350SD61Y-64 900 325 410 555
400SD61H-40 950 385 465 570
450SD61Y-P5450V 1100 450 560 695
500SD61Y-P5464V 1100 460 570 705
530SD61Y-P3564 1100 515 570 734
950SD61YP5550V 1850 930 1120 1340
1000SD61Y100 1850 995 1135 1310

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