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Valves \ Check & Relief Valves \ 700 Series

700 Series: Instrument Check Valves

  • Pressure rating to 3,000 psi (207 bar) at 70°F (21°C)
  • Temperature rating from -10°F to 375°F (-23°C to 191°C) with Viton O-ring seat standard
  • O-ring provides leak tight shut-off
  • Back stopped poppet design prevents the spring from being over-stressed
  • Variety of springs are available for the cracking pressure in the range from 1/3 psi to 100 psi
  • Wide range of body sizes allows Cv choices from 0.16 to 8.8
  • Suitable for gas and liquids
  • Variety of end connections include male/female NPT, ISO, BSP threads and female Hy-Lok tube fittings
  • Body Material is standard in 316 stainless steel and brass
Unless otherwise stated all dimensions are in milimeters (mm)
Part Number Body Material Flow
Coefficient
Cv
Dim.
H
Dim.
H1
Dim.
L
Dim.
I
Inlet End
Connection
Orifice Outlet End
Connection
CV1-H-2T316 Stainless Steel
Brass
0.16 11.11 15.88 55.60 25.00 1/8" Hy-Lok 4.8 1/8" Hy-Lok
CV1-M-2N316 Stainless Steel
Brass
0.47  15.88 44.40 25.00 1/8" Male NPT4.8 1/8" Male NPT
CV1-F-2N316 Stainless Steel
Brass
0.47  15.88 46.60  1/8" Female NPT4.8 1/8" Female NPT
CV1-H-4T316 Stainless Steel
Brass
0.47 14.29 15.88 60.00 25.00 1/4" Hy-Lok 4.8 1/4" Hy-Lok
CV1-H-6M316 Stainless Steel
Brass
0.47 14.00 15.88 60.00 25.00 6mm Hy-Lok 4.8 6mm Hy-Lok
CV1-MH-4N4T316 Stainless Steel
Brass
0.47 14.29 15.88 56.40 25.00 1/4" Male NPT4.8 1/4" Male NPT
CV1-M-4N316 Stainless Steel
Brass
0.47  15.88 53.40 25.00 1/4" Male NPT4.8 1/4" Male NPT
CV1-F-4N316 Stainless Steel
Brass
0.47  19.05 54.60 25.00 1/4" Female NPT4.8 1/4" Female NPT
CV2-H-6T316 Stainless Steel
Brass
1.48 17.46 22.22 74.80 36.20 3/8" Hy-Lok 7.1 3/8" Hy-Lok
CV2-H-10M316 Stainless Steel
Brass
1.48 19.00 22.22 74.80 36.20 10mm Hy-Lok 7.1 10mm Hy-Lok
CV2-M-6N316 Stainless Steel
Brass
1.48  22.22 64.60 36.20 3/8" Male NPT7.1 3/8" Male NPT
CV3-F-6N316 Stainless Steel
Brass
1.7  22.22 63.80  3/8" Female NPT10.0 3/8" Female NPT
CV3-H-8T316 Stainless Steel
Brass
1.7 22.22 22.22 80.20 36.20 1/2" Hy-Lok 10.0 1/2" Hy-Lok
CV3-H-12M316 Stainless Steel
Brass
1.7 22.00 22.22 80.20 36.20 12mm Hy-Lok 10.0 12mm Hy-Lok
CV3-M-8N316 Stainless Steel
Brass
1.7  22.22 74.40 36.20 1/2" Male NPT10.0 1/2" Male NPT
CV4-F-8N316 Stainless Steel
Brass
2.6  28.58 84.70  1/2" Female NPT13.5 1/2" Female NPT
CV4-H-10T316 Stainless Steel
Brass
2.6 25.40 28.58 91.80 48.10 5/8" Hy-Lok 13.5 5/8" Hy-Lok
CV5-H-12T316 Stainless Steel
Brass
5.2 28.56 31.75 110.70 67.00 3/4" Hy-Lok 16.0 3/4" Hy-Lok
CV5-M-12N316 Stainless Steel
Brass
5.2  31.75 105.30 67.00 3/4" Male NPT16.0 3/4" Male NPT
CV5-F-12N316 Stainless Steel
Brass
5.2  31.75 103.00  3/4" Female NPT16.0 3/4" Female NPT
CV6-H-16T316 Stainless Steel
Brass
8.0 38.1 34.93 121.20 68.40 1" Hy-lok 18.0 1" Hy-lok
CV6-M-16N316 Stainless Steel
Brass
8.0  34.93 116.20 68.40 1" Male NPT18.0 1" Male NPT
CV6-F-16N316 Stainless Steel
Brass
8.0  41.28 111.40 68.40 1" Female NPT18.0 1" Female NPT
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