Pressure Control Valves

RV10-26 — Relief, Pilot-Operated, Spool-Type Valve
  Selection guide - similar valves.
  PDF file of this page.
  STP file for RV10-26
  Request a quote.

RV10-26 Valve

U.S. Patent 7,137,406

SYMBOL:
RV10-26 Valve symbol

 

DESCRIPTION
A screw-in, cartridge-style, pilot-operated (two-stage), spool-type hydraulic relief valve, intended
for use as a pressure limiting device in demanding hydraulic circuits which require fast response
and low hysteresis. The cartridge offers smooth transition in response to load changes in demanding
hydraulic circuits.

OPERATION
The RV10-26 blocks flow from 1 to 2 until sufficient pressure is present at 1 to force the piloting relief
off its seat, allowing the main (second stage) spool to shift, opening 1 to 2.
NOTE: The RV10-26 cannot be used in crossover relief applications.

FEATURES
• Adjustments cannot be backed out of the valve.
• Adjustment options A, B and C: positive stops prevent springs from going solid.
• Hardened spool and cage for long life.
• Optional spring ranges to 207 bar (3000 psi).
• Fast, smooth response to pressure surges.
• Industry common cavity.

RATINGS
Operating Pressure: 344 bar (3500 psi)
Proof Pressure: 517 bar (7500 psi)
Burst Pressure: 1038 bar (5000 psi)
Flow Rating: 113.6 lpm (30 gpm) at max pressure
Relief Pressure Setting Defined: bar (psi) evident at 7.57 lpm (2 gpm)
Internal Leakage: 0.53 ml per minute (10 drops/minute) max. to 80% of nominal setting
Crack Pressure Defined: bar (psi) evident at 7.6 lpm (2.0 gpm) attained
Reseat Pressure: Nominal 90% of crack pressure
Relief Pressure Range:
6.9 to 207 bar (100 to 3000 psi); Due to manufacturing
   tolerances, it may be possible to adjust the valve either lower or higher. If the
   valve is adjusted beyond the recommended maximum pressure range for
   F and H style adjuster options, the valve may not open to relieve pressure.

Pressure Setting Below 137.9 bar (2000 psi):115 ml/min. (7 cu.in./min)
Pressure Setting 137.9 bar (2000) psi and above: 197 ml/min (12 cu.in./min)
Temperature: -40 to 120 °C (-40 to 250 °F) for Buna N seals;
   -35 to 204 °C (-31 to 400 °F) for fluorocarbon seals;
   -54 to 107° C (-65 to 225° F) with polyurethane and urethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: Cartridge torque 25-27 ft.lb. (33.9-36.7 Nm) Maximum allowable 50 ft.lb.
(66.7 Nm). H-Style Plug per seal option: N, V, P, U 8-10 ft.lb. (0.8-13.6 Nm); NC, VC 23-25 ft.lb.
(31.2-33.9 Nm) 25 ft.lb (33.9 Nm) maximum. No orientation restrictions; See page 9.020.1
Cavity: VC10-2; See page 9.110_2w
Cavity Tool: CT10-2xx; See page 8.600.1
Seal Kit: SK10-2x-B; See page 8.650.1


PERFORMANCE:

RV10-26 Flow-Pressure

 

DIMENSIONS:

RV10-26 Valve Dimensions

 

MATERIALS:

Cartridge: Weight: with Adjustment Option A: 0.25 kg. (0.55 lb.) B: 0.27 kg. (0.60 lb.) C,L: 0.29 kg. (0.65 lb.) F,H: 0.24 kg. (0.53 lb.) Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N seals standard. Anodized aluminum knobs. Optional polyurethane seals recommended for pressures over 240 bar
(3500 psi).


Ported Body:Weight: 0.16 kg. (0.35 lbs.) Anodized high-strength aluminum alloy, rated to 207 bar (3000 psi). Ductile iron bodies available; dimensions may differ. See page 8.010.1_2w.

 

ORDERING CHART:

RV10-26 Ordering Chart


Selection guide - similar valves.
PDF file of this page. STP file for RV10-26 Request a quote.