Poppet check valve VUC series

ORFSBSPmale

Overview
VUC series compact check valves are machined in a one-piece steel body and use a poppet seating design. Standard cracking pressure reported on general presentation: 35 kPa (0.35 bar). Multiple variants exist across dash sizes 04–16 with a range of thread standards, outlet fittings and cracking pressures defined per part number.

Applications

• Agriculture
• Construction equipment
• Industrial hydraulics
• Oil & Gas

Selected item examples (part number — key specs)

• VUC2/DM-41/BM — Body size: 6.3 mm (1/4"); Thread: M18x1.5 MALE 12L (ISO 8434-1-L); Thread outlet: M14x1.5 MALE (ISO 6149-2); HEX1: 19 mm; D1: 21 mm; L1: 32 mm; Temperature: -25 °C to 125 °C; Seals: NBR; Weight: 41.8 g; Cracking pressure: 0.35 bar.
• VUC1/BM-11/ESA2 — Body size: 10 mm (3/8"); Thread: M14x1.5 MALE (ISO 6149-2); Thread outlet: 11/16"-16 UN MALE ORFS (ISO 8434-3); HEX1: 19 mm; D1: 21 mm; L1: 35.9 mm; Temperature: -25 °C to 125 °C; Seals: NBR; Weight: 52 g; Cracking pressure: 0.2 bar.
• VUC1/CG-11/ESB — Body size: 10 mm (3/8"); Thread: 3/8" BSPP MALE (ISO 1179-3); Thread outlet: 11/16"-16 UN MALE ORFS (ISO 8434-3); HEX1: 22 mm; D1: 24 mm; L1: 33.6 mm; Temperature: -25 °C to 125 °C; Seals: NBR; Weight: 63 g; Cracking pressure: 0.5 bar.
• VUC1/DM-11/ES — Body size: 10 mm (3/8"); Thread: M18x1.5 MALE (ISO 6149-2); Thread outlet: 11/16"-16 UN MALE ORFS (ISO 8434-3); HEX1: 24 mm; D1: 26 mm; L1: 41 mm; Temperature: -25 °C to 125 °C; Seals: NBR; Weight: 91 g; Cracking pressure: 0.35 bar.
• VUC1/DM-11/FS — Body size: 12.5 mm (1/2"); Thread: M18x1.5 MALE (ISO 6149-2); Thread outlet: 13/16"-16 UN MALE ORFS (ISO 8434-3); HEX1: 24 mm; D1: 26 mm; L1: 43 mm; Temperature: -25 °C to 125 °C; Seals: NBR; Weight: 91.4 g; Cracking pressure: 0.35 bar.
• VUC1/HS-11/HSB — Body size: 19 mm (3/4"); Thread: 1-1/16"-12 UN MALE (ISO 11926-3); Thread outlet: 1-3/16"-12 UN MALE ORFS (ISO 8434-3); HEX1: 32 mm; D1: 35 mm; L1: 46.1 mm; Temperature: -25 °C to 125 °C; Seals: NBR; Weight: 190 g; Cracking pressure: 0.5 bar.
• VUC1/MM-11/MS — Body size: 25 mm (1"); Thread: M33x2 MALE (ISO 6149-2); Thread outlet: 1-11/16"-12 UN MALE ORFS (ISO 8434-3); HEX1: 48 mm; D1: 54 mm; L1: 72.6 mm; Temperature: -25 °C to 125 °C; Seals: NBR; Weight: 708.8 g; Cracking pressure: 0.35 bar.

Performance / Burst pressure (per dash size)
Dash 04 — Size: 6.3 mm (1/4") — Working pressure: 25 MPa — Flow rate: 5 l/min — Burst pressure: 100 MPa
Dash 06 — Size: 10 mm (3/8") — Working pressure: 40 MPa — Flow rate: 18 l/min — Burst pressure: 160 MPa
Dash 08 — Size: 12.5 mm (1/2") — Working pressure: 40 MPa — Flow rate: 35 l/min — Burst pressure: 160 MPa
Dash 12 — Size: 19 mm (3/4") — Working pressure: 40 MPa — Flow rate: 65 l/min — Burst pressure: 160 MPa
Dash 16 — Size: 25 mm (1") — Working pressure: 40 MPa — Flow rate: 90 l/min — Burst pressure: 160 MPa

Notes
Certain part numbers include adapter details or non-standard fittings and may have different cracking pressures; reference the specific part number for exact values.

Technical specifications

• Material: Steel
• Seals: NBR
• Operating temperature: -25 °C to 125 °C
• Surface treatment: MATE 500 (CrIII)
• Valve type: Poppet
• Burst / performance by dash size: see performance block above