1/2" - 2" Non Return Valve Flange Type Metal Seat HF Bolted Cover Full Bore FB NRV
Forged Steel Flanged Check Valve Metal Seat HF Bolted Cover Full Bore FB NRV
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
Description:
An important concept in check valves is the cracking pressure which is the minimum differential upstream pressure between inlet and outlet at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.
Quick Details:
1. Constructions: OS&Y, Bolted Bonnet, Welded Bonnet & Pressure Sealed Bonnet;
2. Port type: Full Port
3. Size Range: 1/2" to 2".
4. Pressure Ratings: ANSI 150LB, 300LB, 600LB, 900LB, 1500LB & 2500LB
5. End Connections: Flanged
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
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)
Descriptions:
1.Forged Steel Check Valve Parts and Material List:
| No. | Part Name | A105/F6a | A105/F6aHFS | LF2/304 | F11/F6aHF | F304(L)/304(L) | F316(L)/316(L) | F51/F51 |
| 1 | Body | A105+13Cr | A105+HF | LF2 | F11+HF | F304(L) | F316(L) | F51 |
| 2 | Gasket | 304+ Flexible garphite | 316+ Flexible garphite | |||||
| 3 | Disc | F6a | F6a | F304 | F6a+HF | F304(L) | F316(L) | F51 |
| 4 | Bonnet | A105 | A105 | LF2 | F11 | F304(L) | F316(L) | F51 |
| 5 | Bolt | B7 | B7 | L7 | B16 | B8(M) | B8(M) | B8M |
2. Main Connection Dimensions:
Class 150 - 300 - 600LB
| Specification (NPS) | F.P | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | |
| Face to face (mm) | CL150 | L(RF) | 108 | 118 | 127 | 140 | 16S | 203 |
| CL300 | L1(BW) | 153 | 178 | 203 | 216 | 229 | 267 | |
| CL600 | 165 | 191 | 216 | 229 | 241 | 292 | ||
| Height (mm) | CL150 | H | 77 | 81 | 93 | 95 | 103 | 118 |
| CL300/600 | 61 | 78 | 84 | 101 | 120 | 133 | ||
| Flow port dimensions (mm) | d | 10 | 13 | 17.5 | 23 | 30 | 35 | |
| Weight (KG) | CL150 | 3.6 | 4.6 | 8.5 | 9.2 | 12.5 | 14.8 | |
| 3 | 3.6 | 7.6 | 85 | 11.3 | 13.6 | |||
| CL300 | 3.7 | 4.8 | 88 | 9.6 | 13 7 | 17.8 | ||
| 3.2 | 4.3 | 8 | 8.6 | 12.7 | 16.2 | |||
| CL600 | 4 | 5.8 | 9.5 | 10.4 | 15.6 | 24.5 | ||
| 3.4 | 5.1 | 8.8 | 9.2 | 14.8 | 22.5 | |||
Class 900 - 1500LB
| Specificatiom (NPS) | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | ||
| Face to face (mm) | L(RJ) L1(BW) | 216 | 229 | 254 | 280 | 305 | 371 | |
| Heihgt (mm) | H | 81 | 93 | 95 | 101 | 118 | 130 | |
| Flow port | d | Lift | 12 | 15 | 20 | 28 | 32 | 40 |
| dimension | ||||||||
| (rrm) | Swing | 13.5 | 18 | 24 | 29 | 36.5 | 45 | |
| Weight(Kg) | Lift | 5.2 | 6.8 | 10.5 | 28 | 18 | 24 | |
| Swing | 5 | 6.1 | 10 8 | 29 | 17.6 | 27 | ||
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