API Forged Steel Check Valve SW / NPT Small Size Metallic Seating Surface

Api Forged Steel Check Valve Metal Seat HF Sw / Npt Non Return Valves Small Size

 

Description:

A check valve, clack valve, non-return valve, reflux valve, retention valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.

 

Quick Details:
1. Constructions: OS&Y, Bolted Bonnet, Welded Bonnet & Pressure Sealed Bonnet;
2. Full Port / Reduced Port
3. Size Range: 1/2" to 2".
4. Pressure Ratings: ANSI 800LB, 900LB, 1500LB & 2500LB
5. End Connections: Threaded (Npt), Flanged, Butt weld, Socket Weld (SW).
6. Materials Available in: A105, LF2, F5, F11, F22, F304, F316, F51 or Equivalent;

7. Various trim materials are available to suit different service conditions
8. NACE MR 0175 on request

9. Test and inspection: API598

 

Standards

Design and manafacture: BS5352

End connection size:

1) Socket-weld dimension: ANSI B16.11

2) Screw thread dimension: ANSI B1.20.1

3) Butt-welding dimension: ANSI B16.25

4) Flange end dimension: ANSI B16.5

Valve inspection and test: API598

Material according to ANSI/ASTM

 

Features:

1. Pressure-temperature Ratings for Carbon Steel
CL150-285P.S.I @100° F

CL300-740P.S.I @100° F

CL600-1480P.S.I @100° F

CL800-1975P.S.I @100° F

CL1500-3705P.S.I @100° F

2. The Disc Type of Check Valve

Swing Type, Lifting Type, Ball Type Check Valve

3. Body and Bonnet Connection

Bolted bonnet

Welded bonnet

Pressure seal bonnet

4. Cover Gasket Style

Stainless steel + flexible graphite wounded gasket

Metal gasket, Metal ring gasket, Pressure seal bonnet design

5. Seat

Metallic Seating Surfaces,For carbon steel check valve, the seat is usually forged steel. The seat sealing surface may be spray-welded with hard alloy if specified by the customer. For Stainless steel check valve, integrai seat is usually adopted, or it can be machined integrally after hard alloy welded.

6. Bore Type:

Full Bore (FB), Reduced Bore (RB)

 

Descriptions:

 

1. Forged Steel Check Valve Parts and Material List:

 

Forged Check Valve Drawing SW-NPT

 

No. Part Name A105/F6a A105/F6aHFS LF2/304 F11/F6aHF F304(L)/304(L) F316(L)/316(L) F51/F51
1 Body A105 A105 LF2 F11 F304(L) F316(L) F51
2 Seat ring 410 410HF 304 410HF 304(L) 316(L) F51
3 Disc F6a F6a F304 F6aHF F304(L) F316(L) F51
5 Gasket 304+ Flexible garphite 316+ Flexible garphite
6 Bonnet A105 A105 LF2 F11 F304(L) F316(L) F51
7 Bolt B7 B7 L7 B16 B8(M) B8(M) B8M
15 Name plate AL AL AL AL AL AL AL
32 Rivet AL AL AL AL AL AL AL
33 Steel ball 430 430 304 STL F316(L) 316(L) STL
34 Disc nut 2H 2H 8 8 8(M) B8(M) 8M
35 Rocking arm 410 410 304 410 316(L) 316(L) F51
36 Pin 410 410 304 410 304(L) 316(L) F51

 

2. Main Connection Dimensions:

Forged Check Valve Dimenions Drawing SW-NPT

Class 800

Specification RP   1/2 3/4 1 1 1/4 1 1/2 2 2 1/2
(NPS) F.P 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2 2
Face to face L Lft 79 79 92 111 120 152 172 220
(mm) Swing 79 79 92 111 120 120 140 178
Height H Lft 61 61 61 78 84 84 118 132
(mm) Swing 61 61 61 78 84 84 120 133
Flow port dimensions d Lift 7 9 13 175 23 30 35 46
(mm) Swing 8 105 135 18 24 29 36.5 45
Weight (Kg) Lift 1.2 1.5 17 3.3 4.2 4.2 10.5 12.5
Swing 14 15 1.7 3.3 4.2 4.2 8.5 10.9

 

Class 900 - 1500

Specification R.P   1/2 3/4 1 1 l/4 1 1/2 2
(NPS) F.P 1/4 3/8 1/2 3/4 1 1 1/4 1 1/2
Face to face L Lift 9? 111 111 120 152 172 220
(mm) Swing 9? 111 111 120 120 140 178
Height H Lift 61 78 78 84 103 118 132
(mm) Swing 61 78 78 84 101 120 133
Flow port dimensions d Lift 7 12 15 20 28 32 40
(mm) Swing 8 105 13.5 187 24 29 45
Weight {Kg) Lift 1.5 3.4 33 4,2 6.3 10.5 12.5
Swing 1 5 3.4 3.3 4.2 5.0 8.5 10.9

Products

Swing Check Valve

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Tengs Valve International Limited
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