Darling B50

	Code	Description
Parts
	C-01	Operating nut
	C-03	Lubricating screw
	B5-05	Bonnet
	C-12	Bearing housing cover
	C-15	Bearing housing E/M system (sleeve not included)
	C-19	Upper rod sleeve E/M (polymer)
	C-20	Top rod 24 in
	C-20-18	Top rod 18 in
	C-25	Hose nozzle (specify thread)
	C-26	Hose nozzle retaining ring
	C-30	Hose nozzle cap (specify thread)
	C-35-ZB	Storz pumper nozzle brass
	C-35-ZS	Storz pumper nozzle stainless
	C-36	Pumper nozzle retaining ring
	C-40-ZF	Storz pumper cap (int.)
	C-40-ZM	Storz pumper cap (ext.)
	C-45	Rod coupling - traffic type
	C-46	Extension Coupling (Not Shown)
	B5-50	Upper barrel 2H1P
	B5-50-A	Upper barrel 2H1P storz
	C-55	Traffic flange
	C-56	Pipe flange (8 holes)
	C-60	Lower stem (9 ft)
	C-65	Rod guide
	C-70-4	Main valve seat 4½ in (c/w gasket)
	C-70-5	Main valve seat 5 in (c/w gasket)
	C-75	Drip lever (assembled)
	C-76	Drip lever washer c/w retainer
	C-78-4	Valve ball top 4½ in
	C-78-5	Valve ball top 5 in
	C-80-4	Main valve disc (polyurethane) 4½ in
	C-80-5	Main valve disc (polyurethane) 5 in
	C-85	Valve ball bottom 4½ in and 5 in
	C-88	Valve ball plastic sleeve
	C-90	Inlet boot (Available on demande)
Hardware
	H-01	Chain with s-hook and cap ring
	H-02	Flange nut and bolt
	H-04	Flange side - bolts and nuts
	H-05	Clevis and cotter pin for rod coupling
	H-06	Bonnet nut and bolt
	H-110	Stem guide set screw
	H-152	Housing cover cap screw
	H-283	Rod nut nylon style
	H-502	Drip lever cotter pin
	H-507	Lower stem stop pin
	H-609	Drain plug 4.5 in
	H-610	Drain plug 5 in (Not Shown)
	H-705	Ball thrust bearing (Not Shown)
	H-713	Delrin thrust bearing for E/M model
Gaskets
	G-21	Flange gasket
	G-26	Hose nozzle gasket
	G-40	Main valve seat gasket 4½ in
	G-41	Main valve seat gasket 5 in (Not Shown)
	G-48	Pumper cap gasket
	G-50	Hose cap gasket
	G-61	Housing gasket
	C-CK-4	Complete restoration gasket kit 4½ in
	C-CK-5	Complete restoration gasket kit 5 in
	C-UK	Upper mecanism gasket kit
O-Rings
	O-10	O-ring
	O-14	O-ring
	O-23	O-ring
	O-29	O-ring
	O-42	O-ring
	O-52	O-ring
	O-91	O-ring (Not Shown)

Brand names, models, and part numbers are referenced exclusively to indicate product compatibility. Infrasco specializes in the manufacturing of quality alternative replacement parts and is not affiliated with, sponsored by, or endorsed by the original equipment manufacturers (OEM).