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<br /> R-4991 Light Duty
<br /> Trench Frames with Grated or Solid Covers
<br /> Some Specifications req�ire lids or covers in trench draini to be light in �+eight
<br /> bui capable of supporting heavier loads. When grates and lids in this series are
<br /> specified in Ductile Iron, strength is increased two to three times without chong-
<br /> ing weighL If you have a problem involving sfrength and weight resirictions,
<br /> send details and we will make recommendations. � ,, � „ _,� �, , _ :
<br /> Standard Cover Dimensions �-` �=;�°'��-- �
<br /> -_�:��•�.-'ti`;''-,—,-����
<br /> Cdtalog Dimensions in inches �"=-
<br /> ---
<br /> No. A B C 3���N« --
<br /> 161NNUl♦ poE' Q SO��D
<br /> R�991-A 8 1'/, 6 SP4CE��i-E o ` --'----- ----
<br /> R-4991-B 10 1'/. 8 "• �_� ; _
<br /> �� �„ , �-�_.
<br /> R�991-C 12 1'/, 10 �m � _�i - �=:__,,
<br /> R�3991-D 14 1'/. 12 .-:� :-= �=%,
<br /> _ ����'
<br /> R-4991-E 17 1'/. 15 . � ��i�
<br /> R-4991_F _ - 20 1 Y: 18 � ' ` --� `
<br /> uGnt DUir
<br /> R-4991-G ?3 1'/z 21 IllustroNng trench fromes with grated covers in ihe
<br /> R-4991-H 26 1'/� 2Q The abo�e schemotic d�awing identifies deck area around a municipal pooL
<br /> R-4991-J 29 �yz y� ba:�� dimensions o�ly o�d does �or op- These li ht dut desi ns are orticularl ado toble
<br /> I to all w�er desi ns, Bar and rib g Y g P Y P
<br /> R-4991-K 32 1�/. 30 d Pfhs, plote �h�cknes�ses, a�d sea�ing for monufocturing plants, service stations, laundries,
<br /> R-4991-L 35 � 1�/. 33 wldrhs, may �a�y o� dlHe�en+ s�zes o�d wo�ehouses, residential drivewoys, boiler rooms and
<br /> R-4991-M 38 1'h 36 sryles. ii yo�� ��oi<<� t,�, dES��� �Esi,l� s�milor locat�ons, not subjed to heavy loads
<br /> R-4991-N 44 �� 2 42 ,���,s a�k ro� oa��o�o; d�aw��,s
<br /> R-4991-0 50 � 2 48
<br /> Read Carefully Before Ordering
<br /> The various ztandard trench drains shown here are available v��ih c num�er c' �Irc-�r��ares illusrrated on poge 259 Ir is
<br /> importont to examine all of the variables carefully and spec�fy fuliy your requirements Your order will be entered cor-
<br /> rectiy and promptly, if it indudes this information
<br /> Specify:
<br /> 1. Complete catalog number. 8. When extremely heavy loading is expected, such as concenirated
<br /> 2. Type of frame section required fork-lift loods, heavy aircroft, etc., redesign may be necessary,
<br /> 3. Frame end pieces, when required. depending on the style and size selected.
<br /> 4. Type of grate or lid: A, B, C, D, E or F. 9 Ductile Iron frames and/or Ductile Iron grates.
<br /> 5. Length of trench. 10. Special dimensions, such as changes in trench direction, etc. Send
<br /> details
<br /> 6. Bolted covers, solid or grated, when required.
<br /> 1 l. Pickholes or lift handles �f required.
<br /> 7. Special painting requirements other than asphalt coating. �2, If trench droin grotes ore to be insiolled in bicycle traffic areos, please
<br /> od_vise so that safety stondards described on catolog page 89 can be
<br /> opplied
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