ALFA HI-FLOW Channel Penstocks are square or rectangular with resilient sealing on three sides of the slide.
Standard Uni-directional up to and including 1000 X 1000 and bi-directional in larger sizes.
Non-rising stem and closed frame and are designed for open channel installations embedded in concrete

• Lower leakage rate than max. allowable in DIN 19569-4 (class 5)/ AWWA C561-4: 1,20 L/min. per seatingmeter
• Self-supporting closed framedesign
• Self-cleaning guides and slide bearings of HMWPE (high molecular weight polyethylene) reduce the friction during
• operation resulting in easy operation and extended sealdurability
• Self-adjusting “lip-design” sealing of EPDM mounted on the slide offers easy access tomaintenance
• Frame and slide of stainless steel AISI 304 and stem of stainless steel AISI304
• All fasteners of stainless steelAISI 304
• Delivered with handwheel as standard up to and including 1500X1500, in larger sizes withbevelgear

NO.	Name	Material
1	Frame	Stailless steel AISI 304
2	Slide	Stailless steel AISI 304
3	Guide	HMWPE
4	Slide bearing	HMWPE
5	Seal	EPDM rubber
6	Seal retainer	Stailless steel AISI 304
7	Bottom seal	EPDM rubber
8	Bottom seal retainer	Stailless steel AISI 304
9	Stem	Stailless steel AISI 304
10	Stem nut	Bronze
11	Yoke	Stailless steel AISI 304
12	Stem nut bracket	Stailless steel AISI 304
13	Handwheel	Mild Steel

General Ref. Nos	Size(mm)	W(mm)	H(mm)	H3(mm)	L(mm)	E(mm)	F(mm)	G(mm)	WGT(Kg)
98-00200-00200	200-200	371	525	589	80	120	100	225	16
98-00300-00300	300-300	471	725	789	80	120	100	225	22
98-00400-00400	400-400	571	925	989	80	120	100	225	28
98-00500-00500	500-500	671	1125	1189	80	120	100	225	35
98-00600-00600	600-600	776	1380	1444	90	120	100	225	53
98-00700-00700	700-700	876	1580	1662	90	120	100	310	64
98-00800-00800	800-800	976	1780	1862	90	120	100	310	75
98-00900-00900	900-900	1076	1980	2062	90	120	100	310	93
98-01000-01000	1000-1000	1176	2180	2262	90	120	100	310	107
98-01100-01100	1100-1100	1276	2415	2500	110	250	125	410	146
98-01200-01200	1200-1200	1376	2615	2700	110	250	125	410	179
98-01300-01300	1300-1300	1476	2815	2900	110	250	125	410	198
98-01400-01400	1400-1400	1576	3015	3100	110	250	125	410	218
98-01500-01500	1500-1500	1576	3215	3415	110	250	125	300	252
※ Above sizes & rectangular design upon request.