AF-74 Instrumentation Check Valve 

af75 

 
FEATURE
1. Working pressure to 3000 PSI (206 bar).
2. Temperature rating to 250F (121C) 
with Buna O-ring.
3. Minimum flow resistance.
4. Inline check valve.
5. Instant shutoff in upstream condition.
6. 100% factory tested.
7. Locks pressure in consumer.
8. Stops reversed flow to protect instrumention.
9. Purge system.
10. Suitable for gas or liquid.
MATERIAL
Body : S.S. 316 or Brass
Poppet : S.S. 316
O-ring : Buna-N for S.S. 316 & brass body.
Spring : S.S. 304 for S.S. 316 & brass body.
Material Temperature Rating
VITON -23C to 191C (-10F to 375F)
Buna-N -23C to 121C (-10F to 250F)
PTFE -46C to 232C (-50F to 450F)

Ethylene

Propylene

-46C to 149C (-50F to 300F)

 
DIMENSIONS

Item 

No.

Flow Dia. Cv End Connection L I H H1
Inlet Outlet
CV-01 M(N)
4.8 0.47
1/8 Male (N)PT
1/8 Male (N)PT
50.5 30.5 - 19
CV-01 F(N)
0.47
1/8 Female (N)PT
1/8 Female (N)PT
54 30.5 -
CV-01 OD
0.16
1/8 OD
1/8 OD
54 30.5 12
CV-02 M(N)
0.47
1/4 Male (N)PT
1/4 Male (N)PT
56.5 30.5 -
CV-02 OD
0.47
1/4 OD
1/4 OD
65 30.5 14
CV-6 OD
0.47
6mm  OD
6mm  OD
65 30.5 14
CV-02 F(N)
4.8 0.47
1/4 Female (N)PT
1/4 Female (N)PT
60.5 30.5 - 19
CV-03 M(N)
3/8 Male (N)PT
3/8 Male (N)PT
60.5 30.5 -
CV-03 OD
3/8 OD
3/8 OD
67.2 30.5 17
CV-8 OD
8mm  OD
8mm  OD
67.2 30.5 17
CV-10 OD
10mm  OD
10mm  OD
69.2 30.5 19
CV-03 F(N)
16.0 5.20
3/8 Female (N)PT
3/8 Female (N)PT
60.5 59.2 - 32
CV-04 M(N)
1/2 Male (N)PT
1/2 Male (N)PT
93 59.2 -
CV-04 OD
1/2 OD
1/2 OD
113 59.2 22
CV-12 OD
12mm  OD
12mm  OD
113 59.2 22
CV-04 F(N)
1/2 Female (N)PT
1/2 Female (N)PT
93 59.2 -
CV-06 M(N)
3/4 Male (N)PT
3/4 Male (N)PT
97 59.2 -
CV-06 F(N)
3/4 Female (N)PT
3/4 Female (N)PT
95 59.2 -
CV-06 OD
3/4 OD
3/4 OD
110.7 59.2 28.58
CV-14 OD
14mm  OD
14mm  OD
81 59.2 27
CV-16 OD
16mm  OD
16mm  OD
81 59.2 27
CV-18 OD
18mm  OD
18mm  OD
110 59.2 27
CV-20 OD
20mm  OD
20mm  OD
81.5 59.2 32
CV-22 OD
22mm  OD
22mm  OD
81.5 59.2 32

 
TECHNICAL DATA

End Connection Size

1/8", 1/4", 6mm, 8mm

3/8", 1/2", 10mm, 12mm

3/4", 14mm, 16mm

18mm, 20mm, 22mm

Max. Working Pressure

@ 21C (70F)

3000 PSI  (20,600 kpa)

Brass: 1500 PSI

 (10,300 kpa)

S.S. 316: 2000 PSI

 (13,700 kpa)

Temperature Rating

VITON : -23C to 191C  (-10F to 375F)

BUNA : -23C to 121C   (-10F to 250F)

Nominal Cracking

5,10,25 PSI  (35, 66,170kpa)

Option : Spring with Cracking Pressure up to 100 PSI

Flow Coefficient

(Cv)

1/8" - 0.16

1/4", 6mm, 8mm - 0.47

3/8" - 1.47

1/2", 10mm, 12mm - 1.68

4.48
Note: Valves which are not actuated for a period of time may initially crack at higher than subsequent cracking pressure.

 

All Rights Reserved. 2008. Anson Flow Corp.