Skip to content
Login for the best B2B Wholesale Experience.
Login for the best B2B Wholesale Experience.
K4S-103 ZSi-Foster Quick Disconnect FHK Series 1/2" Two Way Shut Off 1/2" Plug - Steel w/EPDM Seal

K4S-103 by ZSi-Foster | Quick Disconnect | FHK Series | 1/2" Two Way Shut Off | EPDM Seal | 1/2" Plug | Steel

Save $9.17 Save $9.17
$22.92
$22.92 - $22.92
$22.92
$13.75
$13.75 - $13.75
$13.75

ZSi-Foster Quick Disconnect Couplings - Non-Standard Interchange Design - FHK Series - 1/2" Two Way Shut-Off - Plugs
Specifications for Variant SKU: K4S-103 ZSi-Foster
Series: FHK Series
Shape (Orientation): Straight
Material(s): Steel
Seal Material(s): EPDM
Interchange:
  • Compatible with ISO 7241-1, Series B.
Applications:
  • FHK Series sockets incorporate valves in both socket and plug halves to prevent fluid loss when the socket is disconnected. These sockets are normally referred to as "hydraulic couplings", but they are used extensively with other media where objectionable. The FHK Series sockets are available in ROHS compliant steel and brass.
Features:
  • Type: FHK, Two-Way Shutoff , Both socket and plug are sealed at disconnect.
  • Operation: Manual - Socket sleeve must be manually retracted to connect and disconnect.
  • Seal Compound: Standard seals are Buna-N.
  • Interchangeability: Standard, most widely used, industrial interchange design. Within each series, only sockets and plugs of the same size will couple to gether. Compatible with ISO 7241-1, Series B.
  • Ordering information: FHK Series couplings are available in ROHS compliant plated steel, brass, and 303 Stainless as standard. Brass couplings have double O-Ring seals (excluding 1/8") and stainless locking balls. Standard seals are Buna-N (Nitrile). Consult factory for optional seals.
  • Vacuum Service: 27" Hg. maximum Rated pressures as defined by ANSI/B93.2-1986 based on 4:1 Safety Factor and non-shock service.
  • NOTE: Only Sockets & Plugs with same prefix digits connect together. Example: 25FS & 25MPB
    • 1 ISO B, Hardened plugs and sleeves constructed from solid bar stock ensures long service life and maximum resistance to damage from hydraulic and mechanical shock.
    • 2 High flow capacity
    • 3 Foster's conical valve with its 360 deg. metal to metal valve stop maintains valve alignment and ensures that poppets open fully every time.
    • 4 Captive valve seal ensures "bubble tight" poppet sealing since seal is positively captured by the metal poppet to minimize seal washout or damage from high fluid velocity.
    • 5 Ball locking mechanism ensures reliable connections every time. Many ball bearings distribute the load while providing alignment and excellent swiveling action to reduce hose torque and prolong hose life.
    • 6 Broad range of metals and seal materials allow the use of most fluids.
Male PlugPart Number Brand Female CouplerPart Number Plug Dust Cap Thread Description
K4S Foster H4S H4B H4S/S B4DC-DP 1/2" Steel
DS4F4-S Breco 4DSF4-S - 1/2" Steel
K4S-101 Foster - - 1/2" Steel w/Viton Seal
K4S-103 Foster - - 1/2" Steel w/EPDM Seal
K4SLV Foster - - 1/2" Steel Less Valve
K4B Foster H4S H4B H4S/S B4DC-DP 1/2" Brass
DS4F4-B Breco 4DSF4-B BH4-66M 1/2" Brass
K4B-101 Foster - - 1/2" Brass, w/Viton Seal
K4B-102 Foster - - 1/2" Brass, w/Neoprene Seal
K4B-103 Foster - - 1/2" Brass, w/EPDM Seal
K4BLV Foster - - 1/2" Brass Less Valve
K4S/S Foster H4S H4B H4S/S B4DC-DP 1/2" 303 Stainless Steel
DS4F4-SS Breco 4DSF4-SS - 1/2" 303 Stainless Steel
K4S/S-101 Foster - - 1/2" 303 Stainless, w/Viton Seal
K4S/S-103 Foster - - 1/2" 303 Stainless, w/EPDM Seal
K4S/SLV Foster - - 1/2" 303 StainlessLess Valve
DS4F4-SS316 Breco - - 1/2" 316 Stainless Steel
K4S10 Foster H4S10 - 7/8-14* Steel
* SAE straight thread O-ring seal boss
ZSi Foster

ZSi Foster

ZSi-Foster is a leading manufacturer and supplier of highly engineered, mission critical clamping and coupling devices as well as USA-manufactured strut and strut accessories. Our clamping products are specified for the most demanding environments and applications to eliminate damage due to vibration, shock, surge and corrosion and to eliminate unwanted noise. Our coupler products provide the highest quality connections for pipe, tube and hose in hydraulic and pneumatic applications.

Shop Parts by ZSi Foster