DONGLI / PART REFERENCE

Valve Spring

Spring Valve Tapered No.4 Valve

Catalogue reference number
SG40001
Catalogue brand
Kerr

Catalogue fields identify reference material. They do not confirm stock, OEM authorization or interchange. Verify the nameplate, original number and edition.

Spring Valve Tapered No.4 Valve (SG40001) — Valve Spring

Catalogue model references

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Catalogue specification records

Original fieldRecorded value
Weight0.31 lb (≈ 0.14 kg, converted)
Width(无)
Height(无)
Depth(无)
Catalogue description records

This is a tapered valve spring for the No. 4 valve in the Kerr T-50 pump. As a valve spring it returns the valve body to its seat after each stroke, helping the suction and discharge valves close promptly in the fluid end. It weighs about 0.31 lb and is offered as an aftermarket replacement part that interchanges with Kerr part number SG40001.

A valve spring returns the valve body to its seat after each stroke, ensuring the suction and discharge valves close promptly.

Catalogue question records

Original catalogue questions are retained. Fitment and availability need technical review.

Which pump does this valve spring fit?
It fits the Kerr T-50 pump, specifically the No. 4 valve.
What does a valve spring do?
It returns the valve body to its seat after each stroke, ensuring the suction and discharge valves close promptly.
Is this an original Kerr part?
No. It is an aftermarket replacement that interchanges with Kerr part number SG40001; the brand and number are listed for identification only and do not indicate original-equipment manufacture.
SOURCE / PDF

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