SAE Non return valves | Product Series

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Connection 1 Size

Connection 1 Tube Outside Diameter

Connection 2 Type

Connection 2 Size

Connection 2 Tube Outside Diameter

Flow Direction

Seal Material

Materials of Construction

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SAE Non return valves SAE Non return valves

SAE Non return valves

Where to Buy

Parker non-return valves with an ISO 8434-2 (Triple-Lok®) or 8434-3 (O-Lok®) connection offer a wide range of sizes, male threads and cracking pressures, making them very flexible.

Technical Specifications

  • Connection 1 Tube Outside Diameter: 1/4 to 1 1/2 inch, 06 to 38 mm
  • Connection 2 Tube Outside Diameter: 1/4 to 1 1/2 inch, 06 to 38 mm
  • Maximum Flow Rate: n/a
  • Connection Size: G 1/8 to G 1 1/2, 7/16-2 UNF to 1 7/8-12 UN, M 10x1.0 to M 48x2.0
  • Seal Material: NBR
  • Maximum Operating Pressure: 420 bar
  • Maximum Operating Temperature: +120 °C
  • Configuration: n/a
  • Flow Direction: na, Port to Tube, Tube to Port
  • Mounting Type: Screw
  • Minimum Operating Temperature: -40 °C
  • Body Material: Steel
  • Actuation Type: Mechanical
  • Connection Type: Male metric thread - ED-Seal (ISO 9974), Male BSPP thread - ED-Seal (ISO 1179), Male UN/UNF thread - O-ring (ISO 11926), Triple-Lok 37° flare end, O-Lok ORFS end
  • Cracking Pressure: 1 bar
Safety Warning

Full Product Description

Parker non-return valves with an ISO 8434-2 (Triple-Lok®) or 8434-3 (O-Lok®) connection offer a wide range of sizes, male threads and cracking pressures, making them very flexible.
The principle of a two-part non-return valve with an integrated soft sealing element has been proven by many applications in the market.
This reliability is the reason for its successful use in applications with Triple-Lok® (37° flare) or O-Lok® (O-Ring face seal).
Parker non-return valves are available with Cr(VI)-free surfaces. The broad product range goes from sizes 4 to 24 (6 mm to 38 mm O.D.); UNF, BSPP and metric male threads are available. The cracking pressures are from 0.2 to 6 bar. The maximum flow velocity is 8 m/sec. The nominal pressure PN: Triple-Lok® up to PN 350 bar and O-Lok® up to PN 400 bar.
Markets:
• Automotive
• Defence
• Energy
• Environment
• Industrial
• Infrastructure
• Machine Tools
• Materials Handling
• Mobile
• Oil and Gas
• Power Generation
• Process
• Transportation
• Water
Applications:
• Suitable for general hydraulic applications.
Features/ benefits of SAE non-return valves:
• The precise functioning of Parker SAE non-return valves has been proven a million times over and stands for the reliability of this product range.
• Combined soft and metal sealing – leak-free due to soft sealing at cone and metal-supported sealing at cone – extends the safety of the product and the entire hydraulic application.
• The usage of Parker SAE non-return valves is flexible due to the wide range of cracking pressures available.
• For yet more applications, internal parts in stainless steel with FPM are also available.
• The wide range of male threads also increases the number of potential applications.

Related Documents

Literature and Reference Materials
CAT-4100-UK - Industrial Tube Fittings
LEAF-4191-UK - Non return valves and special valves
Compliance, Certifications & Safety
Bureau Veritas Certificate 23071/CO BV
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Products Connection 1 Type Connection 1 Size Connection 1 Tube Outside Diameter Connection 2 Type Connection 2 Size Connection 2 Tube Outside Diameter Flow Direction Seal Material Materials of Construction
4RHDMLOSCF O-Lok ORFS end 9/16-18 UNF 1/4" (6 mm) O-Lok ORFS end 9/16-18 UNF 1/4" (6 mm) n/a NBR Steel
6RHDMLOSCF O-Lok ORFS end 11/16-16 UNF 5/16, 3/8" (8, 10 mm) O-Lok ORFS end 11/16-16 UNF 5/16, 3/8" (8, 10 mm) n/a NBR Steel
8RHDMLOSCF O-Lok ORFS end 13/16-16 UNF 1/2" (12 mm) O-Lok ORFS end 13/16-16 UNF 1/2" (12 mm) n/a NBR Steel
10RHDMLOSCF O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) n/a NBR Steel
12RHDMLOSCF O-Lok ORFS end 1 3/16-12 UNF 3/4" (18, 20 mm) O-Lok ORFS end 1 3/16-12 UNF 3/4" (18, 20 mm) n/a NBR Steel
16RHDMLOSCF O-Lok ORFS end 1 7/16-12 UNF 1" (22, 25 mm) O-Lok ORFS end 1 7/16-12 UNF 1" (22, 25 mm) n/a NBR Steel
20RHDMLOSCF O-Lok ORFS end 1 11/16-12 UNF 1 1/4" (28, 30, 32 mm) O-Lok ORFS end 1 11/16-12 UNF 1 1/4" (28, 30, 32 mm) n/a NBR Steel
24RHDMLOSCF O-Lok ORFS end 2-12 UNF 1 1/2" (35, 38 mm) O-Lok ORFS end 2-12 UNF 1 1/2" (35, 38 mm) n/a NBR Steel
6RHV42EDMLOSCF Male BSPP thread - ED-seal (ISO 1179) G 1/4 n/a O-Lok ORFS end 11/16-16 UNF 5/16, 3/8" (8, 10 mm) Port to Tube NBR Steel
8RHV42EDMLOSCF Male BSPP thread - ED-seal (ISO 1179) G 3/8 n/a O-Lok ORFS end 13/16-16 UNF 1/2" (12 mm) Port to Tube NBR Steel
10RHV42EDMLOSCF Male BSPP thread - ED-seal (ISO 1179) G 1/2 n/a O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) Port to Tube NBR Steel
16RHV42EDMLOSCF Male BSPP thread - ED-seal (ISO 1179) G 1 n/a O-Lok ORFS end 1 7/16-12 UNF 1" (22, 25 mm) Port to Tube NBR Steel
20RHV42EDMLOSCF Male BSPP thread - ED-seal (ISO 1179) G 1 1/4 n/a O-Lok ORFS end 1 11/16-12 UNF 1 1/4" (28, 30, 32 mm) Port to Tube NBR Steel
24RHV42EDMLOSCF Male BSPP thread - ED-seal (ISO 1179) G 1 1/2 n/a O-Lok ORFS end 2-12 UNF 1 1/2" (35, 38 mm) Port to Tube NBR Steel
4RHZ42EDMLOSCF O-Lok ORFS end 9/16-18 UNF 1/4" (6 mm) Male BSPP thread - ED-seal (ISO 1179) G 1/8 n/a Tube to Port NBR Steel
6RHZ42EDMLOSCF O-Lok ORFS end 11/16-16 UNF 5/16, 3/8" (8, 10 mm) Male BSPP thread - ED-seal (ISO 1179) G 1/4 n/a Tube to Port NBR Steel
8RHZ42EDMLOSCF O-Lok ORFS end 13/16-16 UNF 1/2" (12 mm) Male BSPP thread - ED-seal (ISO 1179) G 3/8 n/a Tube to Port NBR Steel
12RHZ42EDMLOSCF O-Lok ORFS end 1 3/16/12 UNF 3/4" (18, 20 mm) Male BSPP thread - ED-seal (ISO 1179) G 3/4 n/a Tube to Port NBR Steel
16RHZ42EDMLOSCF O-Lok ORFS end 1 7/16-12 UNF 1" (22, 25 mm) Male BSPP thread - ED-seal (ISO 1179) G 1 n/a Tube to Port NBR Steel
20RHZ42EDMLOSCF O-Lok ORFS end 1 11/16-12 UNF 1 1/4" (28, 30, 32 mm) Male BSPP thread - ED-seal (ISO 1179) G 1 1/4 n/a Tube to Port NBR Steel
24RHZ42EDMLOSCF O-Lok ORFS end 2-12 UNF 1 1/2" (35, 38 mm) Male BSPP thread - ED-seal (ISO 1179) G 1 1/2 n/a Tube to Port NBR Steel
12RHV5OMLOSCF Male UN/UNF thread - O-ring (ISO 11926) 1 3/16/12 UNF n/a O-Lok ORFS end 1 1/16-12 UN 3/4" (18, 20 mm) Port to Tube NBR Steel
24RHV5OMLOSCF Male UN/UNF thread - O-ring (ISO 11926) 2-12 UNF n/a O-Lok ORFS end 1 5/8-12 UN 1 1/2" (35, 38 mm) Port to Tube NBR Steel
12RHZ5OMLOSCF O-Lok ORFS end 1 1/16-12 UN 3/4" (18, 20 mm) Male UN/UNF thread - O-ring (ISO 11926) 1 3/16/12 UNF n/a Tube to Port NBR Steel
24RHZ5OMLOSCF O-Lok ORFS end 1 5/8-12 UN 1 1/2" (35, 38 mm) Male UN/UNF thread - O-ring (ISO 11926) 2-12 UNF n/a Tube to Port NBR Steel
8M18RHV82EDMLOSCF Male metric thread - ED-seal (ISO 9974) M 18x1.5 n/a O-Lok ORFS end 13/16-16 UNF 1/2" (12 mm) Port to Tube NBR Steel
10M22RHV82EDMLOSCF Male metric thread - ED-seal (ISO 9974) M 22x1.5 n/a O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) Port to Tube NBR Steel
4M12RHZ82EDMLOSCF O-Lok ORFS end 9/16-18 UNF 1/4" (6 mm) Male metric thread - ED-seal (ISO 9974) M 12x1.5 n/a Tube to Port NBR Steel
8RHDMTXS Triple-Lok 37° flare end 3/4-16 UNF 1/2" (12 mm) Triple-Lok 37° flare end 3/4-16 UNF 1/2" (12 mm) n/a NBR Steel
10RHDMLOS4BCF O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) n/a NBR Steel
10RHDMTXSCF Triple-Lok 37° flare end 7/8-14 UNF 5/8" (14, 15, 16 mm) Triple-Lok 37° flare end 7/8-14 UNF 5/8" (14, 15, 16 mm) n/a NBR Steel
10RHV42EDMLOS0.5BCF Male BSPP thread - ED-seal (ISO 1179) G 1/2 n/a O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) Port to Tube NBR Steel
10RHV42EDMXS0.2BCF Male BSPP thread - ED-seal (ISO 1179) G 1/2 n/a Triple-Lok 37° flare end 7/8-14 UNF 5/8" (14, 15, 16 mm) Port to Tube NBR Steel
10RHV42EDMXSCF Male BSPP thread - ED-seal (ISO 1179) G 1/2 n/a Triple-Lok 37° flare end 7/8-14 UNF 5/8" (14, 15, 16 mm) Port to Tube NBR Steel
10RHZ42EDMXSCF Triple-Lok 37° flare end 7/8-14 UNF 5/8" (14, 15, 16 mm) Male BSPP thread - ED-seal (ISO 1179) G 1/2 n/a Tube to Port NBR Steel
12RHDMLOS0.5BCF O-Lok ORFS end 1 3/16-12 UNF 3/4" (18, 20 mm) O-Lok ORFS end 1 3/16-12 UNF 3/4" (18, 20 mm) n/a NBR Steel
12RHDMTXS0.2BCF Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) n/a NBR Steel
12RHDMTXS0.5BCF Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) n/a NBR Steel
12RHDMTXSCF Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) n/a NBR Steel
12RHV42EDMLOS2BCF Male BSPP thread - ED-seal (ISO 1179) G 3/4 n/a O-Lok ORFS end 1 3/16/12 UNF 3/4" (18, 20 mm) Port to Tube NBR Steel
12RHV42EDMXS4BCF Male BSPP thread - ED-seal (ISO 1179) G 3/4 n/a Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) Port to Tube NBR Steel
12RHV42EDMXSCF Male BSPP thread - ED-seal (ISO 1179) G 3/4 n/a Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) Port to Tube NBR Steel
12RHZ42EDMXS0.2BVCF Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) Male BSPP thread - ED-seal (ISO 1179) G 3/4 n/a Tube to Port NBR Steel
12RHZ42EDMXSCF Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) Male BSPP thread - ED-seal (ISO 1179) G 3/4 n/a Tube to Port NBR Steel
12RHZ5OMXS3BCF Triple-Lok 37° flare end 1 1/16-12 UN 3/4" (18, 20 mm) Male UN/UNF thread - O-ring (ISO 11926) 1 1/16-12 UN n/a Tube to Port NBR Steel
16RHDMLOS2BCF O-Lok ORFS end 1 7/16-12 UNF 1" (22, 25 mm) O-Lok ORFS end 1 7/16-12 UNF 1" (22, 25 mm) n/a NBR Steel
16RHDMTXS4BCF Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) n/a NBR Steel
16RHDMTXSCF Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) n/a NBR Steel
16RHV42EDMLOS0.5BCF Male BSPP thread - ED-seal (ISO 1179) G 1 n/a O-Lok ORFS end 1 7/16-12 UNF 1" (22, 25 mm) Port to Tube NBR Steel
16RHV42EDMXS0.2BCF Male BSPP thread - ED-seal (ISO 1179) G 1 n/a Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) Port to Tube NBR Steel
16RHV42EDMXSCF Male BSPP thread - ED-seal (ISO 1179) G 1 n/a Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) Port to Tube NBR Steel
16RHZ42EDMXS0.2BCF Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) Male BSPP thread - ED-seal (ISO 1179) G 1 n/a Tube to Port NBR Steel
16RHZ42EDMXS2BCF Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) Male BSPP thread - ED-seal (ISO 1179) G 1 n/a Tube to Port NBR Steel
16RHZ42EDMXSCF Triple-Lok 37° flare end 1 5/16-12 UN 1" (25 mm) Male BSPP thread - ED-seal (ISO 1179) G 1 n/a Tube to Port NBR Steel
20M42RHV82EDMLOS Male metric thread - ED-seal (ISO 9974) M 42x2.0 n/a O-Lok ORFS end 1 11/16-12 UNF 1 1/4" (28, 30, 32 mm) Port to Tube NBR Steel
20RHZ42EDMXSCF Triple-Lok 37° flare end 1 5/8-12 UN 1 1/4" (28, 30, 32 mm) Male BSPP thread - ED-seal (ISO 1179) G 1 1/4 n/a Tube to Port NBR Steel
24RHV42EDMXSCF Male BSPP thread - ED-seal (ISO 1179) G 1 1/2 n/a Triple-Lok 37° flare end 1 7/8-12 UN 1 1/2" (35, 38 mm) Port to Tube NBR Steel
8RHDMTXS0.2BCF Triple-Lok 37° flare end 3/4-16 UNF 1/2" (12 mm) Triple-Lok 37° flare end 3/4-16 UNF 1/2" (12 mm) n/a NBR Steel
8RHDMTXSCF Triple-Lok 37° flare end 3/4-16 UNF 1/2" (12 mm) Triple-Lok 37° flare end 3/4-16 UNF 1/2" (12 mm) n/a NBR Steel
8RHV42EDMXSCF Male BSPP thread - ED-seal (ISO 1179) G 3/8 n/a Triple-Lok 37° flare end 3/4-16 UNF 1/2" (12 mm) Port to Tube NBR Steel
8RHZ42EDMXSCF Triple-Lok 37° flare end 3/4-16 UNF 1/2" (12 mm) Male BSPP thread - ED-seal (ISO 1179) G 3/8 n/a Tube to Port NBR Steel
10RHDMLOS0.2BCF O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) O-Lok ORFS end 1-14 UNF 5/8" (14, 15, 16 mm) n/a NBR Steel
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