Manifold Replacement Parts Kit Manufacturer,Supplier and Exporter in India
Product Code : EL-RACLE-12746
Jlab Export is a leading Manifold Replacement Parts Kit Manufacturer,and suppliers in India
Manifold valves wear with use: O-rings harden, handles crack and sight glasses get scratched. This kit holds five of each part used to rebuild piston-type manifold valves. There are red, blue and yellow handles with screws, and sight glasses with retainers and gaskets. It also has valve retaining nuts, feed screws, 3/8 in and 1/4 in pistons, and seal and seat O-rings.
Specifications
| Red handles with screws | 5 |
| Blue handles with screws | 5 |
| Yellow handles with screws | 5 |
| Sight glasses with retainer and gaskets | 5 |
| Valve retaining nuts | 5 |
| Feed screws | 5 |
| Pistons | 5 of 3/8 in and 5 of 1/4 in |
| Seal and seat assembly O-rings | 5 |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Manufacturer | JLab (Jain Laboratory Instruments Pvt Ltd), Ambala, India |
Workshop Practice: Rebuilding a Manifold Valve
Teachers can use the kit for a strip-down lesson. Students release all pressure, unscrew the handle, take off the valve retaining nut and draw out the feed screw and piston. They inspect the seal and seat O-rings, fit new ones with a thin film of refrigeration oil and rebuild the valve in reverse order.
The rebuilt manifold is fitted with a set of Refrigerant Hose, pressurised from the Nitrogen Pressure Test Kit and left with its valves closed. Students watch both gauges for any fall in pressure, which would point to a seal that is still leaking.
Frequently Asked Questions
Will these parts fit my manifold?
They are for piston-type valve blocks that take 1/4 in or 3/8 in pistons and red, blue and yellow handles. Lay the old piston, feed screw and nut beside the new ones before fitting, since valve designs vary between manifolds.
How do I know the valve O-rings need changing?
A valve that hisses with the handle shut, or lets a gauge drift while the hoses are capped, has worn seals. Hard, flattened or cracked O-rings are another sign. Change the whole seal and seat set in that valve, not one ring alone.
Can a cracked sight glass be replaced?
Yes. The kit has five sight glasses, each with its retainer and gaskets. Release all pressure, unscrew the retainer, fit the new glass between fresh gaskets and tighten the retainer evenly. Pressure-test the manifold before it goes back into service.
Can over-tightening the valve handles damage the manifold?
Yes. Turning a handle hard against its seat crushes the seal and seat O-rings and can mark the piston, and the valve then leaks when closed. Close each valve firmly by hand and stop. If a valve still lets a gauge drift, rebuild it with new O-rings from the kit.
Other Manifold and Hose Items
- Hose Adapters
- Refrigerant Hose (150 cm, with ball valves)
- Hydrocarbon Manifold Gauges
- Digital Manifolds
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Last updated: 5 November 2026