HSPEC12-

PROPORTIONAL FLOW CONTROL VALVE WITH INTEGRAL

COMPENSATOR

Overview

Symbol

Description

A proportional solenoid-operated, 3-way, normally closed flow control,

screw-in hydraulic cartridge valve intended for post-compensated

applications with load sense systems. In post-compensated systems the

load sense (port 1) of each HSPEC12-32 valve is connected to highest

load which maintains flow sharing when flow demand exceeds flow

supply. Pressure compensation value of the valve defined as pressure

difference between inlet and load sense ports is provided by appropriate

setup of a pump load sense control or by additional pressure

compensator valve, one for the whole system, in case if the pump is

non-adjustable

Operation

When de-energized, the hspec12-32xx blocks flow from port 3 to port 2.

The valve will regulate flow out of port 2 regardless of load pressure with

flow rate proportional to current applied to the solenoid

Features

Integral post-compensator.

❍

Integral load-sense.

❍

Reduced manifold space claim.

❍

Continuous-duty rated coils.

❍

Optional "A" type linear metering poppet.

❍

Manual override option.

❍

E-Coils rated up to IP69K.

❍

Flow sharing possible

❍

All HyPerformance™ valves are tested to the rigorous standards of

NFPA specification T2.6.1 and are tested at a verification level of

90% and an assurance of 99%

❍

Ratings

Pressure Ratings

Pressure rating

350 bar (5075 psi)

420 bar (6090 psi) - Note: 10% cycle life

Proof pressure

690 bar (10000 psi)

Burst pressure

1380 bar (20000 psi)

hydraforce.com

9/28/2020

HSPEC12-32

HSPEC12-

PROPORTIONAL FLOW CONTROL VALVE WITH INTEGRAL

COMPENSATOR

Flow Ratings

Flow rating

56.8 lpm (15.0 gpm) - Note: Hspec12-32/32t (at compensation value 11 bar (160 psi)

68.1 lpm (18.0 gpm) - Note: Hspec12-32a/32at (at compensation value 11 bar (160 psi)

Maximum internal leakage

7 drops/min - Note: Port 3 to 2 or port 1 to 2 with at port 3 or 1 350 bar (5075 psi)

Temperature Ratings

Maximum operating fluid

temperature

-40 to 100 °C (-40 to 212 °F) - Note: With buna N seals

-26 to 204 °C (-15 to 400 °F) - Note: With fluorocarbon seals

-54 to 107 °C (-65 to 225 °F) - Note: With urethane seals

Storage temperature

-40 to 70 °C (-40 to 160 °F)

Ambient temperature

-40 to 70 °C (-40 to 160 °F)

Operating Parameters

Fluids

Mineral based or synthetic hydraulic fluid with lubricating properties

Fluid viscosity range

7.4 to 420 cSt

Maximum operating

contamination level

18/16/13 per ISO 4406

Properties

Cartridge weight

0.32 kg (0.70 lb) - Note: HSPEC12-32X without coil and nut

0.33 kg (0.72 lb) - Note: HSPEC12-32XT without coil and nut

Internal wetted surface area

267.3 cm²; (41.43 in²;) - Note: HSPEC12-32X

274.2 cm²; (42.5 in²;) - Note: HSPEC12-32XT

Performance

hydraforce.com

9/28/2020

HSPEC12-32

HSPEC12-

PROPORTIONAL FLOW CONTROL VALVE WITH INTEGRAL

COMPENSATOR

Materials

Cartridge: Weight: (without coil and nut): 0.32 kg. (0.70 lbs.); With Manual Override: 0.33 kg. (0.72 lb.) Steel with

hardened work surfaces. Zinc-plated exposed surfaces. PPDI urethane seals without back-up rings standard.

E-Coil: Weight: 0.41 kg. (0.9 lbs.); Fully encapsulated with rugged external metal shell. Rated up to IP69K with integral

connectors.

Ported Body: Weight: 4.05 kg. (8.93 lb.) H-series ductile iron standard. Rated to 345 bar (5000 psi).

Installation Specifications

hydraforce.com

9/28/2020

HSPEC12-32

HSPEC12-

PROPORTIONAL FLOW CONTROL VALVE WITH INTEGRAL

COMPENSATOR

Cavity

Hvc12-3

Cartridge installation torque

156 to 170 N-m (115 to 125 ft-lb) - Note: Steel/ductile iron cavity

122 to 136 N-m (90 to 100 ft-lb) - Note: Aluminum cavity

Coil nut torque

7 to 10 N-m (5 to 7 ft-lb)

Orientation restriction

None

Accessories

Seal kit

SK12-3N-MM - Note: Buna N

SK12-3V-MM - Note: Fluorocarbon

SK12-3U-OO - Note: Urethane

Housings

Coils

Order code

hydraforce.com

9/28/2020

HSPEC12-32