ORFS Male x ORFS Swivel Female x BSP Parallel Female Test Point Tee

An ORFS male and swivel female in line with a BSPP female test port. Puts a gauge into a face-seal line on a late-model machine.

Brand: Ayrtec – mild steel body with a plated finish, manufactured to the standards listed below.

Watch: Exploring Hydraulic Adaptors Part 1: Difference Between Branch Tee & Run Tee, Elbows Short and Long

Thread Standards

• ORFS Male – SAE J1453 O-ring face seal. It seals on an O-ring sitting in the flat face groove, never on the thread.
• BSP Parallel Female – BSPP to ISO 228. It needs a bonded washer or a cone seat to seal, because a parallel thread cannot seal on itself.

How to Choose

• A test point tee puts a gauge or sender port into a live line without breaking into it permanently.
• The two ORFS ports seal on O-rings in flat faces. The BSPP test port needs a washer or cone seat.
• No sealant on the ORFS ends.

Technicians Advice

Cap the test port when it is empty. On a machine that vibrates hard an open port also lets the seat get knocked about, and a damaged test seat is a slow weep you will chase for weeks.

Where You’ll Find It

• ORFS Male – High-pressure, high-vibration circuits on late-model excavators, drill rigs, crushers and forestry gear.
• ORFS Swivel Female – Hose ends on modern high-pressure plant where a cone joint would fret loose under vibration.
• BSP Parallel Female – Female side of BSPP manifolds, adaptor blocks and gauge assemblies on local equipment.

Cross-Reference

• ORFS Male – SAE J1453 / ISO 8434-3 O-ring face seal. Parker call this series Seal-Lok. Also written ORFS or flat face.
• ORFS Swivel Female – SAE J1453 / ISO 8434-3 O-ring face seal. Parker series Seal-Lok.
• BSP Parallel Female – BSPP to ISO 228 / BS 2779, written G.

Parker, Gates, Aeroquip and Ryco all manufacture to these same standards under their own part numbering, so a fitting built to the standard above will mate with theirs.

Cross-references are given at series level as a guide to the standard, not as a part-for-part substitution. Always confirm the thread form, size and seal type against the port before ordering.

📐Dimensions & thread sizes – every size in this range

← Swipe the table sideways to see every measurement →

Part code	H	H1	C	Material	Finish
ORM-ORF-BPF-090902	17.5mm	27mm	1/8" BSPP	Mild steel	Plated finish
ORM-ORF-BPF-111102	20.6mm	27mm	1/8" BSPP	Mild steel	Plated finish
ORM-ORF-BPF-131302	23.8mm	27mm	1/8" BSPP	Mild steel	Plated finish
ORM-ORF-BPF-161602	28.6mm	27mm	1/8" BSPP	Mild steel	Plated finish
ORM-ORF-BPF-191902	34.9mm	32mm	1/8" BSPP	Mild steel	Plated finish
ORM-ORF-BPF-232302	41.3mm	38mm	1/8" BSPP	Mild steel	Plated finish

Key: H centre to face, H1 centre to face 2, C across corners. Measurements in millimetres unless shown otherwise. Thread columns show what each end mates with. Dimensions are nominal – check critical clearances against the part.

Downloads

📄 Thread Identification Chart (PDF)

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