Rising Stem

For Water and Wastewater Treatment

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

Features

• 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

Design Features

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

Dimensions

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.
Address in Korea :
312-3, Gojan-Dong, NamDong-Gu, Incheon City, Republic of Korea
( Tel : +82-32-442-3093 ~ 4, Fax : +82-32-442-3095 )
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