FH2 Underground Fire Hydrant DN80 BS750 - Type Loose Stopper


80	Standard design	11.4	230709

Field of use

Fire hydrants pillar or underground type are designed, according to applicable standards and regulations, for exclusive use of fire protection and using drinking water or raw water network.

They must be handled and used in strict compliance with the recommendations and best practice by personnel trained with these recommendations.

These devices must be inspected periodically (as required by regulations or recommended instructions) to verify and maintain their proper and safe operation.

Material and coatings

Item	Designation	Standards	Material Standard Version	Material Upgraded Version	Material Heavy-duty Version
1	Hydrant body	BS EN 1563	Ductile Iron coated with epoxy powder 250 microns	Ductile Iron coated with epoxy powder 300 microns
2	Hydrant bonnet	BS EN 1563	Ductile Iron coated with epoxy powder 250 microns	Ductile Iron coated with epoxy powder 300 microns
3	Operating cap	BS EN 1563	Ductile Iron coated with epoxy powder 250 microns	Ductile Iron coated with epoxy powder 300 microns
4	Limiter	WARAS listed	Dupont Zytel 70G30 HSL NC010
5	Outlet nozzle	BS EN 10088-3	Stainless steel GX20Cr14		Stainless steel G X5CrNiMo19-11-2 EN10283 (1.4408)
6	Cap		HDPE
7	Rubberized disc	BS EN 1563 - BS EN 681-1	Ductile Iron / EPDM
8	Operating nut	BS 12164	CW 614 N		Bronze LG2
9	Operating stem	BS EN 10088 - 3	Stainless steel X20Cr13		Stainless steel X2CrNiMo 17-12
10	Limiter	BS 12164	CW 614 N		Bronze LG2
11	Wiper ring	BS EN 681-1	EPDM
12	Drain Valves	WARAS listed	Dupont Zytel 70G30 HSL NC010
13	Washer	BS 4320	B NAYLON
14	Spring	EN 10270 - 3	Stainless steel X2CrNi 18-8
15	Washer	BS EN 681-1	EPDM
16	“O” Ring Ø75XØ5	BS EN 681-1	EPDM
17	“O” Ring Ø105XØ5	BS EN 681-1	EPDM
18	“O” Ring Ø26XØ3	BS EN 681-1	EPDM
19	“O” Ring Ø23XØ2,5	BS EN 681-1	EPDM
20	Screw M8x35	ISO 4017	Stainless steel A2 - 70		Stainless steel A4 - 80
21	Screw M12x40	ISO 4017	Stainless steel A2 - 70	Stainless steel A4 - 80
22	Screw M12x45	ISO 4017	Stainless steel A2 - 70	Stainless steel A4 - 80
23	Washer A12	ISO 7089	Stainless steel A2	Stainless steel A4
24	Nut M12	ISO 4032	Stainless steel A2	Stainless steel A4
25	Screw M8x16	ISO 4762	Stainless steel A2 - 70	Stainless steel A4 - 80
26	Sealing Nut	BS 12164	CW 614 N		Bronze LG2
28	Washer A24	ISO 7089	Stainless steel A2		Stainless steel A4

Technical characteristics

Factory Test pressure:
- Body: 25 bar (EN 12266 rate A – ISO 5208 rate A)
- Shutter: 18 bar (EN 12266 rate A – ISO 5208 rate A)
Coating: fusion bonded epoxy powder in accordance with UBA, WRAS
Standard: BS 750 – EN 1074-6
Maximum service temperature: 60° C
Head losses in full open position: Kv = 96,4
Operating turns: 8
Operating cap: pyramidal to BS 750
Flanges: BS EN 1092-2 ; BS 10 ; Table D and E 3” and 3.5”, ISO PN10/16
Maximum allowable pressure (PFA): 16 bar
Nozzle type: 2 ½ inches London round thread to BS 750
Size range: DN80