ANSI Swing Check Valve

Class150-2500LB
2″-30″(50~750mm)
WCB, CF8, CF8M

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Swing Type · Bolted Cover · Non-Return · BS 1868

ANSI Swing Check Valves for Reliable Backflow Prevention in Critical Pipeline Systems

150LB~2500LB, sizes 2″ to 30″ (DN50~750mm), available in WCB, CF8, CF8M, WC6, LCB with standard renewable seat, bolted cover, and flanged or butt-welding ends — NACE MR-01-75 compliant.

Overview

ANSI swing check valve is also called one-way valve or non-return valve, which is used to prevent of mediums back flow in the pipeline. The disc of the check valve is action depending on the mediums itself flow pressure, so the check valve is belonging to automatic valve types. Because the swing check valve is only allowed the mediums to flow in one direction, we should note the arrowhead on the check valve when mount it in horizontal position. Swing check valves are widely used in series of industries, especially in oil & gas filed, power plant, etc. Flowspec Luokai can manufacture the ANSI swing check valve in accordance with ASME B16.34 and BS 1868. Welcome to contact us for detailed information and best quotes if you have any questions or inquiries.

1. Features

  • Standard swing type disc
  • Standard renewable seat
  • BC, bolted cover
  • Non-penetrate disc shaft
  • Horizontal or vertical service
  • Flanged or butt-welding ends

2. Technical Specifications

  • Class: 150LB~2500LB
  • Size: 2″ ~ 30″ (DN50~750mm)
  • Materials: steel A216 WCB, stainless steel 304 (A351 CF8), stainless steel 316 (A351 CF8M), CrMo alloy steel A217, low temperature A352
  • Applicable medium: water, sea water, oil, gas, corrosive liquids
  • Applicable temperature: -29℃~+425℃ (higher temperature is available upon request)
  • Special: NACE MR-01-75

3. Standards

  • Design & manufacturing: ASME B16.34 / BS 1868
  • Face to face: ASME B16.10
  • Flanged ends: ASME B16.5 / B16.47
  • Inspection & testing: API598
  • Special request: NACE MR-01-75

4. Applications

  • Petroleum
  • Chemical industry
  • Pharmacy
  • Chemical fertilizer
  • Power plant
  • Textile
  • Printing & dyeing
  • Oil & gas

ANSI Swing Check Valve — Structure and Features
ANSI Swing Check Valve — Structure and Features

ANSI Swing Check Valve — Detail Views
ANSI Swing Check Valve — Detail Views

Materials of Parts

No Part Name Carbon Steel 1¼Cr-½Mo Carbon Steel
1 Body A216-WCB A217-WC6 A352-LCB
2 Bonnet Cap A216-WCB A217-WC6 A352-LCB
3 Disc A216-WCB+Cr13 A217-WC6+HF A352-LCB+CR13
4 Hinge A216-WCB A217-WC6 A352-LCB
5 Support A216-WCB A217-WC6 A352-LCB
6 Seat Ring A105+HF A182-F11+HF A350-LF2+HF
7 Hinge Pin A276-420 A276-304 A276-420
8 Disc Washer Carbon Steel A276-304 Carbon Steel
9 Disc Nut Carbon Steel A194-7 Carbon Steel
10 Disc Nut Pin Carbon Steel A276-420 Carbon Steel
11 Bonnet Gasket Steel Ring 304SS Ring Steel Ring
12 Bonnet Stud A193-B7 A193-B16 A320-L7
13 Bonnet Stud Nut A194-2H A194-7 A194-4
14 Eyebolt Carbon Steel

ANSI Swing Check Valve — Materials
ANSI Swing Check Valve — Materials of Parts

Dimensions — ANSI Class 1500LB & 2500LB

NPS 2/50 2.5/65 3/80 4/100 6/150 8/200 10/250 12/300 14/350 16/400
1500LB L/L1 RF/BW 368 419 470 546 705 832 991 1130 1257 1384
L2 RTJ 371 422 473 549 711 841
H OPEN 350 380 440 505 630 740 830 950 1060 1150
2500LB L/L1 RF/BW 451 508 578 673 914 1022 1270 1422
L2 RTJ 454 511 581 676 917 1025
H OPEN 410 460 520 580 700 830 940 1060

ANSI Swing Check Valve — Dimensions
ANSI Swing Check Valve — Dimensions Overview

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