Part No.: DT12643
Description: Plunger cylinder (integral valve spool plunger assembly)
Brand: Barksdale, core internal service spare for Series 9000 Shear-Seal manual hydraulic directional valves, compatible with valve cover 694-82-0 & joystick 900-23-2 / 900-23-3
Core Function
Reciprocating plunger spool inside valve body; linear stroke driven by joystick switches hydraulic passages for directional control, pressure holding & unloading. Adopts patented Shear-Seal design for ultra-low internal leakage.
Complete integrated service kit: plunger rod, wear seal rings, return spring & guide sleeve as one unit for direct full replacement.
When locked by DT11313 locking pin, plunger maintains fixed stroke to sustain circuit pressure without pressure drop.
Material & Precision Specs
Plunger body: Hardened alloy steel with nitrided wear-resistant anti-corrosion surface, resistant to fluid erosion & scratch-free long-cycle operation
Standard seal: NBR nitrile O-rings; Viton fluororubber seals optional for high-temperature oil
Guide sleeve: Oil-impregnated bronze bushing to reduce friction noise during reciprocation
Compatible valve port size: 1/4”, rated for max 350 psi (24 bar) low-pressure pilot circuits
Net weight: 0.045 kg
Environmental & Hydraulic Compatibility
Fluid temp range: -20℃ ~ +80℃; ambient temp -30℃ ~ +70℃
Compatible media: Anti-wear hydraulic oil, dry compressed air; NOT compatible with water glycol fire-resistant fluids
IP54 dust & oil splash protection, for hydraulic fixtures, presses & rescue hydraulic manifolds
Max fluid flow velocity: 20 ft/s, low hydraulic shock & minimal internal leakage for precision clamping circuits
Key Advantages
All-in-one repair assembly; replacement only requires removing top 694-82-0 valve cover, no full disassembly of base skid (841-34-0 / 694-22-0)
Patented Shear-Seal shear sealing minimizes internal leakage, stable long-duration pressure holding
Universal interchangeable spare for all 2/3-position Series 9000 manual valves, fits both gang-release & standard joysticks
Pre-compressed built-in return spring for automatic neutral reset, paired with DT11313 pin for mechanical position lock
BarksdaleDT12643 Plunger cylinder Specifications
| Part No | DT12643 |
|---|---|
| Description | Plunger cylinder (integral valve spool plunger assembly) |
| Complete integrated service kit | plunger rod, wear seal rings, return spring & guide sleeve as one unit for direct full replacement. |
| Standard seal | NBR nitrile O-rings; Viton fluororubber seals optional for high-temperature oil |
| Guide sleeve | Oil-impregnated bronze bushing to reduce friction noise during reciprocation |
| Compatible valve port size | 1/4”, rated for max 350 psi (24 bar) low-pressure pilot circuits |
| Net weight | 0.045 kg |
| Fluid temp range | -20℃ ~ +80℃; ambient temp -30℃ ~ +70℃ |
| Compatible media | Anti-wear hydraulic oil, dry compressed air; NOT compatible with water glycol fire-resistant fluids |
| Max fluid flow velocity | 20 ft/s, low hydraulic shock & minimal internal leakage for precision clamping circuits |
About the BarksdaleDT12643 Plunger cylinder
The BarksdaleDT12643 Plunger cylinder is a electrical products used in industrial automation, control and power systems. It is rated at Part No DT12643, Description Plunger cylinder (integral valve spool plunger assembly), Complete integrated service kit plunger rod, wear seal rings, return spring & guide sleeve as one unit for direct full replacement.. This electrical products is supplied as new, original industrial-grade stock. Each unit is identified by manufacturer part number BarksdaleDT12643 Plunger cylinder for accurate procurement and cross-referencing.
Why source the BarksdaleDT12643 Plunger cylinder from HDE123
- Verified part number: every BarksdaleDT12643 Plunger cylinder is checked against its manufacturer specification before shipment.
- 10 confirmed technical parameters available on this page for engineering review.
- Global delivery with clear lead time and commercial invoice for B2B buyers.
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Ordering the BarksdaleDT12643 Plunger cylinder
To order the BarksdaleDT12643 Plunger cylinder, add it to your cart and complete checkout, or use the Request a Quote form for volume purchases and replacement / cross-reference enquiries. Lead time: typically 3–10 working days for in-stock items, subject to confirmation. Worldwide shipping is available and a commercial invoice is provided for customs.