SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

1SE30 Series Counterbalance Cartridge Valve, 1015-5075 PSI (Factory Setting At 3045.00), Screw with Locknut Adjustment, 5:1 Pilot Ratio

Ask A Question

Description & Features

Designed for precision control the 1SE30 Series Counterbalance Cartridge Valve ensures safety in applications such as harvesters and industrial setups. With a 1015-5075 PSI range and a factory setting at 3045 PSI this valve operates effectively in varying load conditions benefiting from a 5:1 pilot ratio and screw with locknut adjustment. The steel-constructed valve features a direct acting pilot-assisted relief style efficiently preventing load runaway. It is designed for a three-valve port configuration requiring 33 ft-lbs torque cartridge installation in a T11A Sun cavity or housing with no restrictions on mounting positions. This counterbalance valve guarantees optimal performance with a recommended filtration level of 18/16/13 microns and a leakage rate of 0.25 cc/min. Handling up to 4000 PSI of load-induced pressure and 5000 PSI of maximum relief pressure it operates within temperatures of -22F to +194F.

Model Number: 1SE30F35S5

Supplier Part Number: 406AA00049A

Specifications

Brand
Char-Lynn®
Adjustment Style
Screw with Locknut
Body Material
Steel
Dimensions
4.57 in L x 0.99 in W x 0.99 in H
grp Installation
30 ft-lb Torque Cartridge into Cavity, Unrestricted Mounting Position
grp Recommended Filtration
ISO 18/13 or Better
Grp Specifications
8 gpm Rated Flow, 4000 psi Maximum Load induced Pressure, 5000 psi Maximum Relief Pressure, Caution: Pressures Over 3000 psi Require A Steel Housing, -22 deg to 194 deg F Operating Temperature Range, 5 dpm Maximum internal Leakage, Based on Oil Temperatur
Installation Type
Screw-In Cartridge
Model
1SE30F35S5
Number of Housing Ports
3
Number of Ports/Ways
3-Way
Number of Valve Ports
3
Operation
Direct Acting
Pilot Ratio
5:1
Port Type
Cartridge Only
Seal Material
Nitrile
Series
1SE30 Series
Sg Back Pressure
Overcenter Valves Should Not Be Subjected to Back Pressure, As This Will Affect Performance and Can Cause Unstable Operation, If Back Pressure Cannot Be Avoided, As An Option, A Vented Spring Cavity Design Should Be Selected
Softgoods Material
Buna-N
Style
Pilot Assisted Relief with Check

Product Questions & Answers (2)

Question by: Ross M on May 25, 2025, 3:56 PM
Got a harvester sittin' idle right now because the load keeps running away on me. This the kind of valve that'd fix that?
Answer by: Customer Support on May 27, 2025, 7:04 AM
Load runaway is exactly what the 1SE30 series was built to stop. It works as a counterbalance valve, meaning it holds the load in place until pilot pressure from the opposite side of the circuit tells it to release in a controlled way. The 5:1 pilot ratio on this particular unit is the standard selection for applications where the load varies, which fits harvester work pretty well. Factory pressure is set at 3045 PSI out of the box, and it's adjustable anywhere from 1015 to 5075 PSI using the screw and locknut if your system needs something different. It also gives you hose burst protection, so if a line lets go, the load stays put rather than dropping free.
Question by: Kurt H on Aug 24, 2025, 6:45 PM
What kind of machines does this fit on? I've got a few different pieces of equipment.
Answer by: Customer Support on Aug 26, 2025, 6:04 AM
It's designed for applications like harvesters, refuse haulers, and various mobile and industrial setups.

Tell us what you need and we'll get back to you.

Fields marked * are required.