| Your situation | Start with |
|---|---|
| Threaded pipework for water, air & utilities | Class 150 Fittings — elbows, tees, sockets, unions |
| Connecting and disconnecting quickly hoses & tanks, no tools | Camlock fittings — give us the type (A–F) and the size |
| At a glance | Class 150 fittings | Camlock fittings |
|---|---|---|
| Standard | Class 150 lb (150#) | EN 14420-7 — interchangeable with the American standard |
| Range | 1/8″–4″ — DN6 to DN100 | 1/2″ to 4″ |
| Pressure | Class 150 lb rating | Up to 250 PSI — falls away with size |
| Body | Stainless SS316 — ASTM A351 CF8M | SS316 · aluminium ZLD104 · brass HPB57-3 |
| Connection | NPT (60°) or BSPT (55°) thread, tapered | Cam & groove — types A–F, plus DC & DP |
| Sealing | PTFE tape on the male thread | Rubber seal: NBR · EPDM · Viton · PTFE |
| Taking it apart | Needs a wrench — use a union where the line must come apart | No tools — two levers |
| Used for | Permanent pipework: water, air, utilities | Quick transfer: hoses, tanks, temporary lines |
The Class 150 fittings we stock come in one material only: stainless SS316, ASTM A351 CF8M — the molybdenum in it is what gives the chloride resistance, which is why it is the one that goes onto seawater and treated-water lines. Camlocks come in three bodies, and that choice sets the temperature limit:
| Camlock body | Max PSI | At 3″ | Temperature limit |
|---|---|---|---|
| SS316 | 250 | 200 | 500 °F — no derating |
| Aluminium ZLD104 | 250 | 125 | 250 °F — derates from 250 °F |
| Brass HPB57-3 | 250 | 125 | 450 °F — derates from 300 °F |
| Size | Stainless SS316 | Brass / aluminium |
|---|---|---|
| 1/2″ | 150 PSI | 150 PSI |
| 3/4″ – 2″ | 250 PSI | 250 PSI |
| 2½″ | 225 PSI | 150 PSI |
| 3″ | 200 PSI | 125 PSI |
| 4″ | 100 PSI | 100 PSI |
The 250 PSI figure holds in the middle of the range only. At 4″ every material drops to 100 PSI — so tell us the working pressure of your line, not just the size. The per-type detail is on the camlock page.
Alongside our high-pressure range, low-pressure fittings handle water, air and utility lines: Class 150 threaded fittings in stainless SS316 (ASTM A351 CF8M), 1/8″–4″, for permanent pipework — and camlocks to EN 14420-7, 1/2″–4″ in SS316, aluminium or brass, for connecting and disconnecting quickly without tools.
Both are held in our regional warehouses in Singapore and Malaysia and leave the warehouse within 24 hours of a PO. When you ask for a quote, give us the size, the shape or type, the material and the working pressure of the line — those four things are what set price and availability.
A threaded fitting for low-pressure pipework, rated Class 150 — elbows, tees, sockets, unions and so on — used on water, air and utility lines.
For connecting and disconnecting quickly — hoses and tanks, without tools — fluid transfer, loading and unloading, and temporary lines. Give us the size and the type (A–F) when you order.
The Class 150 fittings we stock are stainless SS316 — ASTM A351 CF8M only. Camlocks come in three bodies: SS316, aluminium ZLD104 and brass HPB57-3, with NBR, EPDM, Viton or PTFE seals.
Camlocks are rated up to 250 PSI, but that figure holds across 3/4″–2″. At 1/2″ it drops to 150 PSI, at 3″ to 200 PSI (SS316) or 125 PSI (brass/aluminium), and at 4″ every material drops to 100 PSI. Tell us the working pressure of your line, not just the size.
Both are tapered, but the flank angles differ: NPT 60°, BSPT 55°. The two cannot be mixed in one joint. Tell us the thread standard your line runs on; both seal with PTFE tape on the male thread.
The body and the seal decide it. Body: SS316 to 500 °F with no derating, brass to 450 °F (derates from 300 °F), aluminium to 250 °F (derates from 250 °F). Seals: NBR −50…+120 °C, EPDM −40…+145 °C (not for oil), Viton −20…+200 °C, PTFE −25…+100 °C.
Yes — held in our regional warehouses in Singapore and Malaysia, out of the warehouse within 24 hours of a PO; quotes come back within 2 working hours.
