Hydraulic Filter Elements — Quick Reference (English)

Items: PH414-12-CGV· PH414-05-CGVRF

1) What These Are (Plain English)

Both belong to the PH414-family pressure filter housing — a heavy cast-steel head mounted between pump and valves on the high-pressure leg.

• 12 vs 05 = different length/flow/dirt-holding class — they are not interchangeable even if the bowl “looks similar.”

  
  

• The suffix (CGV / CGVRF) bundles the seal compound + bypass/end-cap variant + possible high-temp option — treat it as “part of the identity,” not something to simplify by guesswork.

  
  

⚠️ If the O-ring looks brown/reddish (Viton/FKM-type), the “V/RF” part of the suffix is telling you why. Never swap to a plain black NBR “C” just because it’s on the shelf.

2) What You Must Check Before Installation

A) Housing nameplate (near the inlet/outlet ports)

Read / photo:

• Model line containing PH414…

  
  

• MAX WP (bar / psi) — these heads are typically up to ~420 bar class

  
  

• Port size/type (SAE flange or metric thread)

  
  

• FLOW ARROW (oil must follow it; reversed = filtration lost)

  
  

B) Old element (once it’s out)

With a ruler:

• Overall height H · OD · Centre-hole ID

  
  

• O-ring colour: black/dark grey (NBR-type) vs brown/red (Viton-type)

  
  

• Note: does the element sit on a centre stud (pulls up) or a centre tube (bowl pulls down)? Follow the head arrow/casting.

  
  

Rule: if the nameplate is painted over, the H / OD / seal colour you write down becomes the only safe ID.

3) Replacement — Pressure-Side (Extra Care Required)

Because this is high-pressure:

1. Close upstream isolation if fitted → bleed slowly at the head vent until the gauge reads 0 bar and no more hissing.

   
   

2. Support the bowl — don’t let it hang by the piping (heavy cast hardware).

   
   

3. Release the retainer → lift the element straight out (no prying).

   
   

4. Check the bottom for bright metal shavings (pump/valve wear — report it).

   
   

5. Wipe sealing faces → thin film of clean hydraulic oil on the O-ring (no grease, no sealant).

   
   

6. Seat element square on the centre support (off-centre under pressure = bypass or crush risk).

   
   

7. Reassemble → torque evenly per head type → close vent.

   
   

8. Bring pressure up slowly → stay close for the first few minutes and watch for leaks.

   
   

4) Procurement — What to Write (So Stores Can’t “Almost” It)

5) One-Line BOM (Copy-Paste)

• PH414-12-CGV— Pressure-line element, PH414 family (12 length class), fits PH414 head nameplate only — full depressurize before opening

  
  

• PH414-05-CGVRF— Pressure-line element, PH414 family (05 length class), fits PH414 head nameplate only — not interchangeable with 12

  
  

One rule that prevents the costly mistake here

Bleed until 0 bar. Square seating. Slow pressure-up. And never put a 05 where the head expects 12 (or vice versa) — the locator won’t seat and it can bypass/fail under pressure.

If you want, photo the head nameplate (ports + arrow + MAX WP) and the old element upright next to a ruler (one shot for each) and I’ll give you the same clean sheet with the exact mm filled in — still zero brand names, still the same format you asked for.