Audited Supplier
Hikelok - Solution Provider of Fluid System
Hikelok, Founded in China in 2011, is a top manufacturer of instrument fittings and valves, ultra-high pressure and ultra-high purity fittings and valves. Our factory is verified by TUV, and got certifications such as CE; ABS; ISO9001; ISO 14001; ISO 45001. All our products are designed in strict acordance with ISO, ANSI, ASME, ASTM, API, MSS, EN, GB, HG, JB and other standards. 
Fixed Cracking Pressure Check Valves - CV1
Hikelok CV1 check valves have been well accepted and widely used in a variety of industries for many years. A wide variety of end connectors are offered for all types of installation.NACE compliant materials and oxygen clean are also available, along with an extensive list of materials of construction.Working pressure is up to 3000 psig (206 bar),working temperature is from -10ºF to 400ºF (-23ºC to 204ºC).Every check valve is factory tested for crack and reseal performance with a liquid leak detector.Every check valve is cycled six times prior to testing. Every valve is tested to ensure it seals within 5 seconds at the appropriate reseal pressure.
* Maximum working pressure: 3000 psig (206 bar)
* Working temperature: -10ºF to 400ºF (-23ºC to 204ºC)
* Cracking pressure: 1/3 to 25 psig (0.02 to 1.7 bar)
* Fixed Cracking Pressures
* Variety of end connections available
* Variety of body materials available
* Variety of seal materials available
* O-ring seals body halves
* Fixed Cracking Pressures
* 100% factory tested
More options:
* Optional fluorocarbon FKM,buna N,ethylene propylene, neoprene, kalrez seal material
* Optional 1 psig,1/3 psig,3 psig,10 psig,25 psig cracking pressure
* Optional SS316,SS316L,SS304,SS304L,brass body material
Cracking Pressure:
| Series | Nominal Cracking Pressure psig (bar) | Cracking Pressure Range psig (bar) | Reseal Pressure psig (bar) |
CV1 | 1/3(0.02) | Up to 3 (0.21) | Up to 6 (0.42) back pressure |
| 1(0.07) | Up to 4 (0.28) | Up to 6 (0.42) back pressure | |
| 3(0.21) | 1 to 5 (0.07 to 0.34) | Up to 5 (0.34) back Pressure | |
| 10(0.69) | 7 to 15 (0.49 to 1.1) | 3 (0.21) or more inlet Pressure | |
| 25(1.7) | 20 to 30 (1.4 to 2.1) | 17 (1.2) or more inlet Pressure |
Pressure - Temperature Ratings:
* Ratings based on fluorocarbon FKM O-rings in 316 stainless steel valves and Buna N O-rings in brass valves.
| Material | 316 S.S. | Brass |
| Temperature, ºF(ºC) | Working Pressure, psig (bar) | |
| -10(-23)to 100(37) | 3000 (206) | 3000 (206) |
| 200(93) | 2575 (177) | 2600 (179) |
| 250(121) | 2450 (168) | 2405 (165) |
| 300(148) | 2325 (160) | - |
| 400(204) | 2185 (150) | - |
Seal Material:
| Seal Material | Temperature Range ºF (ºC) |
| Buna N | -10 to 250 (-23 to 121) |
| Ethylene propylene | -50 to 300 (-45 to 148) |
| Fluorocarbon FKM | -10 to 400 (-23 to 204) |
| Neoprene | -40 to 250 (-40 to 121) |
| Kalrez | 0 to 525 (-17 to 274) |
Standard Materals of Construction:
| Component | Valve Material Grade / ASTM Specification | ||
| 316 S.S. | Brass | ||
| 1 | Inlet Body | 316 S.S. / A479 | Brass 360 / B16 |
| 2 | O-ring | Fluorocarbon FKM | Buna N |
| 3 | Poppet | 316 S.S. / A479 | Brass 360 / B16 |
| 4 | Spring | 302 S.S. / A313 | 302 SS / A313 |
| 5 | Outlet Body | 316 S.S. / A479 | Brass 360 / B16 |
Product Dimensions:
| Basic Ordering Number | Connection Type and Size | Series | C V | Dimension, in. (mm) | |
| L | F | ||||
| CV1-F2- | 1/8" Hikelok | 4 | 0.16 | 2.14 (54.3) | 5/8 (15.88) |
| CV1-F4- | 1/4" Hikelok | 0.47 | 2.35 (59.7) | ||
| CV1-F6- | 3/8" Hikelok | 6 | 1.47 | 3.17 (80.5) | 7/8 (22.23) |
| CV1-F8- | 1/2" Hikelok | 1.68 | 3.42 (86.9) | ||
| CV1-F12- | 3/4" Hikelok | 12 | 4.48 | 4.32 (110) | 1 1/4 (31.75) |
| CV1-F16- | 1" Hikelok | 4.74 (120) | 1 3/8 (34.93) | ||
| CV1-M6- | 6 mm Hikelok | 4 | 0.47 | 2.36 (59.9) | 5/8 (15.88) |
| CV1-M10- | 10 mm Hikelok | 6 | 1.68 | 3.32 (84.3) | 7/8 (22.23) |
| CV1-M12- | 12 mm Hikelok | 3.42 (86.9) | |||
| CV1-FNPT2- | 1/8" Female NPT | 4 | 0.16 | 1.89 (48.0) | 5/8 (15.88) |
| CV1-FNPT4- | 1/4" Female NPT | 0.47 | 2.15 (54.6) | 3/4 (19.05) | |
| CV1-FNPT6- | 3/8" Female NPT | 6 | 1.47 | 2.98 (75.7) | 7/8 (22.23) |
| CV1-FNPT8- | 1/2" Female NPT | 1.68 | 3.58 (90.9) | 1 1/16 (26.99) | |
| CV1-FNPT12- | 3/4" Female NPT | 12 | 4.48 | 4.08 (104) | 1 1/4 (31.75) |
| CV1-FNPT16- | 1" Female NPT | 4.84 (123) | 1 5/8 (41.28) | ||
| CV1-NPT2- | 1/8" Male NPT | 4 | 0.16 | 1.71 (43.4) | 5/8 (15.88) |
| CV1-NPT4- | 1/4" Male NPT | 0.47 | 2.09 (53.1) | ||
| CV1-NPT6- | 3/8" Male NPT | 6 | 1.47 | 2.78 (70.6) | 7/8 (22.23) |
| CV1-NPT8- | 1/2" Male NPT | 1.68 | 3.16 (80.3) | ||
| CV1-NPT12- | 3/4" Male NPT | 12 | 4.48 | 4.08 (104) | 1 1/4 (31.75) |
| CV1-NPT16- | 1" Male NPT | 4.52 (115) | 1 5/8 (41.28) | ||
* Sizes and types listed does not contain all . Other sizes and types are available.
1, Send us an email with product parameter.
2, Provide us of the model of Swagelok, Dk-lok or Parker.
Certificates: PED / ABS / ISO9001 / ISO14001 / ISO45001 / F1387
Product Range: ISO, ANSI, ASME, ASTM, API, MSS, EN, GB, HG, JB and other standards.
Fittings: Twin Ferrule Tube Fittings, Threaded Pipe Fittings, Welded Fittings, Quick Connectors, Vacuum Fittings, Flange Fittings.
Valves: Ball valves, Needle valves, Proportional Relief Valves, Check Valves, Metering Valves, Gauge Valves, Plug Valves, Instrumentation Manifolds, Block And Bleed Valves, Globe Valves, Root Valves, Filters.
Ultra-high Pressure Products: Ultra-High Pressure Fittings, Ultra-High Pressure Ball Valves, Ultra-High Pressure Needle Valves, Ultra-High Pressure Check Valves, Ultra-High Pressure Safety Valves, Ultra-High Pressure Filters, Sub-Sea Valves.
Ultrahigh-Purity Products: EP Tubes, VCR Fittings, Miniature Butt-Weld Fittings, Pressure Reducing Regulators, Diaphragm Valves, Bellows Sealed Valves.
Other Products: Sampling Systems, Sampling Cylinders, Air Headers.
Tubing & Flexible Hoses: Tubing and Pipes, Metal Flexible Hoses.
Tools: Pressure Gauges, Plastic Clamp Supports, Tube Deburring Tools, Gap Inspection Gauges, Tube Cutters, Tube Benders, Preswaging Tools, Pipe Thread Sealants.
Factory Qualification:
We has obtained 5 national invention patents, 23 utility model patents, 13 certificates such as IS0 9001 (TUV certification), ABS product design certification, PED 4.3 material license certification, TSG special equipment (valve) production license, etc., and has been awarded the titles of "National High-tech Enterprise", "Safety Production Standardization Level III Enterprise" and "Sichuan 'Specialized, Special and New' Small and Medium-sized Enterprises"
