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SELECTION GUIDE

Plan a Selden manual hydraulic system: control panels, oil reservoir, electric pump, hoses and glands, then the vang, backstay (HT / HTI) and halyard cylinders, terminals and the mast-jack system.

DocumentSelden Hydraulic Cylinders Selection Guide
FormatPDF · 16 pages · 3.1 MB
LanguageEnglish
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How It WorksChoosing PartsPanels & PumpHoses & GlandsVangsTensionersTerminalsMast-JackProducts
Selden Hydraulic Cylinders — Selection Guide

Manual Hydraulics

  • HTI (Hydraulic Tensioner Integral): the closed system and pump handle are built into the backstay cylinder; nothing else is needed. You may need to adjust the backstay wire length; check the lower clevis pin fits your chainplate.
  • HT backstay adjuster, hydraulic vang, halyard tensioner: connected to a control panel in the cockpit (manual pump, needle valve to release pressure, selector valve). Low-pressure side between tank and panel, high-pressure side between panel and cylinder.
  • Mast-jack: a cylinder in the heel of a keel-stepped mast lifts the mast to tension the rig; shims go between heel and T-base, then pressure is released and the pump removed. Best specified with a new mast or boat.
  • Outhaul: available for the larger Selden boom sections; seldom retrofitted, specified before the boom is built.
  • Electric pump (12/24V) between tank and control panel replaces manual pumping.
  • Panels: 2-speed (fast until a pre-set pressure, then low speed), "Dual Action" (pumps on push and pull), adjustable relief valve, black or clear anodized.

Follow These Steps

  1. More than one function? Choose the 4-function panel.
  2. Clear anodized (silver) or black panel.
  3. One or two panels (two lets you trim from either side of the cockpit).
  4. Oil reservoir sized to the total volume of the cylinders.
  5. Low-pressure hoses (tank to panel): two are needed.
  6. Coupling kit for the number of panels.
  7. High-pressure hose length for each function; the function sets the terminal angle.
  8. A deck-gland for a high-pressure hose through the deck.

Control Panels, Reservoir and Electric Pump

Art. No. Functions 2-speed Dual Action Anodization
586-503-01 1 Yes Yes Clear View panel →
586-505-01 1 Yes Yes Black View panel →
586-504-04 4 Yes Yes Clear View panel →
586-506-04 4 Yes Yes Black View panel →

All panels: oil flow per stroke 20,1 cm³ low-pressure / 5,6 cm³ high-pressure; connections 1/4" low-pressure, 1/8" high-pressure. Pump handle 587-101, stainless steel, Ø20 x 500 mm.

Art. No. Item
587-101 Pump handle View part →
Oil reservoir Art. No. Volume (L) Male thread For max cylinder volume (L) Height (mm) Width (mm) Depth (mm)
585-300-10 3,8 NPT 3/8" 2,3 280 220 110
585-304-10 5,7 NPT 3/8" 3,4 430 220 110
Electric pump Art. No. Voltage (V) Power (kW) Nominal oil flow (L/min) Max working load, bar (psi) Low / high-pressure connection
587-800-01 24 0,8 1,5 250 (3600) 1/4" / 1/8" View pump →
587-805-01 12 0,8 1,5 250 (3600) 1/4" / 1/8" Ask us to source it →
Push button Art. No. Colour
540-460-05 Red View part →
540-459-05 Green View part →

Hoses, Couplings and Glands

Low-pressure coupling kit Contents Application
585-614-25 4 hose couplings 1/4" (585-614), 2 adapters 3/8 to 1/4 male (585-638), 6 hose clamps 1 - 4 functions, 1 panel
585-614-26 5 hose couplings 1/4" (585-614), 3 adapters 3/8 to 1/4 male (585-638), 8 hose clamps 1 - 4 functions, 1 panel with electric pump
585-614-27 9 couplings (585-614), 2 adapters 3/8 to 1/4 male (585-638), 1 T-coupling (585-625), 12 hose clamps 1 - 4 functions, double panels
Low-pressure hose (1/4"), made to length Length (mm)
585-700-03 3000
585-700-04 4000
585-700-05 5000
585-700-06 6000
585-700-08 8000
585-700-10 10000

Filter: 550-134-02.

High-pressure hoses

Made to length with couplings, between control panel and cylinder. Hose size ¼", couplings 1/8", max working pressure 345 bar (5000 psi).

Series Couplings Use Lengths
540-965-31XXX 0/0° Backstay tensioner 400 to 10000 mm
540-965-32XXX 0/45° Halyard tensioner 400 to 10000 mm
540-965-33XXX 0/90° Hydraulic vang 1000 to 10000 mm

XXX = length in mm / 100: 004 = 400 mm, 010 = 1000 mm, 100 = 10000 mm (steps of 100 mm up to 1000, then 500 mm). Example: 540-965-31025 = 2500 mm.

Art. No. Item Thread Couplings Max working pressure, bar (psi)
540-907-11 Deck-gland 1/8 1 345 (5000)
540-907-12 Deck-gland 1/8 2 345 (5000)
540-907-21 Deck-gland, quick connection, stainless protection included 1/8 1 345 (5000)
540-907-22 Deck-gland, quick connection, stainless protection included 1/8 2 345 (5000)
550-227-02 Mast-gland (through-mast connector for outhaul cylinder) 1/8 1 345 (5000)

Deck-glands are clear anodized through-deck connectors for halyard tensioners, vang and backstay tensioners; stainless protection 508-193 / 508-207.

Art. No. Item
582-006-12 Dump-valve 12V, 1/8, 345 (5000) bar (psi), connection box 532-426-01 View part →
582-006-24 Dump-valve 24V, connection box 532-426-11 Ask us to source it →
585-631-01 Quick coupling, hose 1/4, thread 1/4, for backstay tensioner and hydraulic vang Ask us to source it →
508-193 Deck-gland stainless protection View part →

The dump-valve releases the pressure instantly at the push of a button: an ideal supplement to a hydraulic vang.

Hydraulic Vangs (for Selden control panels)

Art. No. Model Anodization Pull at max pressure (kN) Pull at 250 bar, electric pump (kN) Max return force (kN) Stroke (mm) Min c-c pin-to-pin (mm) Lower clevis pin Ø (mm) Cylinder Ø (mm) Volume (L) Thread cyl. / hose Weight (kg)
580-033-10 HV-46 Clear 44 31 8,4 280 2400 15,8 67 0,4 1/4" / 1/8" 12 Ask us to source it →
580-034-10 HV-46 Black 44 31 8,4 280 2400 15,8 67 0,4 1/4" / 1/8" 12 Ask us to source it →
580-035-10 HV-69 Clear 57 46 12 280 2650 19 79 0,7 1/4" / 1/8" 15,8 Ask us to source it →
580-036-10 HV-69 Black 57 46 12 280 2650 19 79 0,7 1/4" / 1/8" 15,8 Ask us to source it →
580-036-503 HV-69 Black 57 46 12 280 2030 19 79 0,7 1/4" / 1/8" 15,8 Ask us to source it →
580-017-501 HV-89 Clear 138 89 25 340 2300 25 110 1,2 3/8" / 1/8" 27 Ask us to source it →
580-018-501 HV-89 Black 138 89 25 340 2300 25 110 1,2 3/8" / 1/8" 27 Ask us to source it →
580-017-01 HV-89 Clear 138 89 25 340 2790 25 110 1,2 3/8" / 1/8" 33 Ask us to source it →
580-018-01 HV-89 Black 138 89 25 340 2790 25 110 1,2 3/8" / 1/8" 33 Ask us to source it →

Max working pressure 345 bar (5000 psi) for all vangs.

Backstay, Halyard and Outhaul Tensioners

HT tensioners for Selden control panels

Art. No. Model Anodization Max wire Ø mm (rod) Pull at 345 bar (kN) Stroke (mm) Contracted length (mm) Lower clevis pin Ø (mm) Cylinder Ø (mm) Volume (L) Piston rod thread UNF (LH) Weight (kg)
580-003-10 HT-W8/10 Clear 10 (-17) 44 420 826 15,8 62 0,6 5/8 – 18 4,3 Ask us to source it →
580-004-10 HT-W8/10 Black 10 (-17) 44 420 826 15,8 62 0,6 5/8 – 18 4,3 Ask us to source it →
580-007-10 HT-W12/14 Clear 14 (-40) 85 480 912 22 80 1,1 7/8" 8 View tensioner →
580-008-10 HT-W12/14 Black 14 (-40) 85 480 912 22 80 1,1 7/8" 8 View tensioner →

For backstay, halyard and outhaul. Max working pressure 345 bar (5000 psi); threads 1/8" in cylinder and at hose connection; 2-speed and Dual Action via the panel.

HTI backstay tensioners with integral pump

Art. No. Model Anodization Max wire Ø mm (rod) Pull at 345 bar (kN) Stroke (mm) Contracted length (mm) Lower clevis pin Ø (mm) Cylinder Ø (mm) Piston rod thread (LH) Weight (kg)
580-001-10 HTI-W8/10 Clear 10 (-17) 44 420 1028 15,8 62 UNF 5/8" – 18 8,1 Ask us to source it →
580-002-10 HTI-W8/10 Black 10 (-17) 44 420 1028 15,8 62 UNF 5/8" – 18 8,1 Ask us to source it →
580-005-10 HTI-W12/14 Clear 14 (-40) 85 480 1156 22 80 UNF 7/8" – 14 13 Ask us to source it →
580-006-10 HTI-W12/14 Black 14 (-40) 85 480 1156 22 80 UNF 7/8" – 14 13 Ask us to source it →

HTI: 2-speed function yes, Dual Action no.

Upper Terminals, Forks and Toggles

Tensioner Fork, stainless Clevis pin Ø (mm) Rigging screw body and split pin
HTI-W8/10, HT-W8/10 581-415-01 15,8* 5/8" 174-326-99
HTI-W12/14, HT-W12/14 581-416-01 22 7/8" 174-328-99
HTI-W12/14, HT-W12/14 581-416-02 (for -22 rod) 19

* When W8/10 is used on a Ø7 mm backstay with Ø13 mm hole dia, a conversion kit with bushings and a Ø12 mm clevis pin is required: Art. No. 306-558-04.

Art. No. Fork terminal (upper and lower) Clevis pin Ø (mm) X Y Z Piston rod thread UNF (LH)
581-415-01 HTI-W8 and HT-W8/10 15.80 16 30 19 5/8" Ask us to source it →
581-416-01 HTI-W12/14 and HT-W12/14/10 22.00 22 44 36 7/8" Ask us to source it →
581-416-02 HTI-W8 and HT-W8/10 (as printed) 19.00 22 44 36 7/8" Ask us to source it →
Art. No. Item
174-326-99 Rigging screw body 5/8" and split pin View part →
174-328-99 Rigging screw body 7/8" and split pin View part →
174-107-01 Toggle (optional), HTI-W8/10 and HT-W8/10, clevis pin 15,8* View part →
174-135-01 Toggle (optional), HTI-W12/14 and HT-W12/14, clevis pin 22 View part →
174-134-01 Toggle (optional), for -22 rod, clevis pin 19 View part →
174-106-01 Eye/fork toggle (chain plate with Ø13 mm hole) View part →
306-558-03 Conversion kit, bushings and Ø12 mm clevis pin (with 174-106-01) Ask us to source it →
306-558-04 Conversion kit, bushings and Ø12 mm clevis pin (W8/10 on Ø7 mm backstay) View part →

* If the chain plate has a Ø13 mm hole, an eye/fork toggle 174-106-01 and conversion kit 306-558-03 are required.

Mast-Jack System

System Mast extrusion (aluminium) Mast extrusion (carbon) Max working pressure, bar (psi) Max working load (kN) Pump with manometer
D65/300 C193 CC192 300 (4350) 100 550-160-01
D63/400 C211-C245 CC210-CC244 400 (5800) 125 550-160-01
D80/500 C264-C304, F265-F305 CC263-CC303 500 (7250) 250 550-160-02
D110/400 C321-C405, F324-F406 450 (6525) 428 550-160-03
Aluminium mast Cylinder Art. No. Carbon mast Cylinder Art. No.
C193 502-196-01 CC192 502-196-03
C211 502-230-01 CC210 502-230-03
C227 502-231-01 CC226 502-231-03
C245 502-232-01 CC244 502-232-03
C264, F265 502-233-01 CC263 502-233-03
C285, F286 502-234-01 CC284 502-234-03
C304, F305 502-235-01 CC303 502-235-03
C321, F324 502-236-01
C365, F370 502-237-01
F406 502-238-01

Mast-jack cylinder fitted on the mast heel with 2 m hose and quick coupling (male); pump with manometer and quick coupling (female).

T-base with shims and U-bolts Art. No. (dim., mm)
D65/300 510-208-01 (205 x 140)
D63/400 510-180-01 (300 x 125)
D80/500 510-185-01 (370 x 160)
D110/400 510-190-02 (530 x 230)
Tie rod kit (incl. conversion parts for standard deck ring) Art. No.
C193, CC192 601-003-54
C211, C227, C264, F265 / CC210, CC226, CC263 508-309-02
C245, C285, F286, C304, F308 / CC244, CC284, CC303 508-309-03
Accessory Art. No.
Hose garage, including pop rivets 507-537-01
Shims 2 / 5 / 10 mm (D65/300) 510-209 / 510-210 / 510-211
Shims 2 (optional) / 5 / 10 / 15 mm (D63/400) 510-214 / 510-181 / 510-182 / 510-183
Shims 2 (optional) / 5 / 10 / 20 mm (D80/500) 510-215 / 510-186 / 510-187 / 510-189
Shims 5 / 15 / 30 mm (D110/400) 510-193 / 510-194 / 510-195
Locking bolts for shims D65/300 / D63/400 / D80/500 165-107 / 165-207 / 166-011
1/4" hydraulic hose, 2 m, with couplings 540-965-01
Quick coupling male / plastic cover 540-966 / 540-968
Quick coupling female / plastic cover 540-967 / 540-969
Sealing washer for coupling 540-885
U-bolt for securing tie rod 508-023-02
Silicon spray, 200 ml, for deck ring rubber wedges 312-506
Safety wire with Talurit eye (Ø 5x500 mm), required between mast and T-base by some racing rules 508-010-10

Need a part that isn't listed? Ask us to source it and quote the part number from the PDF.

Products in this Selection Guide