DEPARTMENTAL EXAMS SCHEDULE -- november 2020

 

CLICK HERE FOR DEPARTMENTAL TESTS SCHEDULE PDF

CLICK HERE FOR DEPARTMENTAL TESTS SCHEDULE PDF

REGISTERS TO BE MAINTAINED BY WARD AMENITIES SECRETARY

As a Amenities secretary, we have to maintain some sort of registers to show the work progress, Leakages arrest materials registers, No of power bores present and their details register like their power, and depth, when it is damaged and when it is repaired, Citizens grievance registers etc.,

Here is the list of registers to be maintained by Amenities secretaries.

AP 6th Class Social Studies Text book

All DSC Aspirants, here we are posting 6^th class social studies text book (Telugu medium). Study well by using this material and crack the DSC and become a good teacher and build this society. 

click here for 6th class social text book 2020 edition 

Polyethylene - PE - Pipes and Pressure classes

HDPE - High density polyethylene - is highly used material for water pipes. These pipes are

· Flexible

· Long Life

· Chemical Resistant

· Less weight

· Resistant to Sunlight

· Less friction

· Cheaper in cost

· tough

· ductile

· ability to dampen water shock.

The standard specification of HDPE pipes is Nominal pressure - PN . Polyethylene pipes can be used in-between -40 to 60 C based on operating pressure. Based on the material used they also be classified as PE 32, PE 40, PE 63, PE 80 and PE 100. 

The pressure grades available in market according to European Standards are  

PN 2.5 - i.e., Maximum pressure it can bare is 2.5 bar

PN 4 - Maximum pressure is 4 bar

like that PN 6, PN 10, PN 16 etc., 

For pressure conversions follow this link

Color Codes and Pressure Grades

Generally color codes are given to the pipes to indicate the pressure.

PE Pressure Grade	Color Code
PN 16	Green
PN 10	Blue
PN 6	Red
PN 4	Yellow

PE 32 & PE 40  pipes are used for low pressure piping systems. PE 63 pipes are used for medium pressure piping systems like drinking water connections, Irrigation purposes. PE 80 pipes for natural gas distribution and drinking water pipes up to 16 bar pressure. PE for high pressure distribution systems.

Color Codes and Materials Classifications

In some special cases pipes are given some colors to identify where we can use these pipes. 

· In general complete black colored pipes for industrial applications

· complete blue (or) black with blue stripes, for potable water applications

· complete yellow (or) black with yellow stripes, for gas conduits

Note: These colors may change based on countries.

PIPE LINE SPARES AND ITS PRICE

For pipe line materials like sluice valves, Spigot tail pieces,  C I D Joints, contact 

Mr: 

T S Haragopal

9849274647

(Rates on 11/10/2020)

Ductile iron sluice valves, soft seated, PN 16:

Credits : wikimedia.org/wikipedia/commons

50 mm - 2380/-

65 mm -2996/-

80 mm -. 3305/-

100 mm -. 4625/-

125 mm -. 6125/-

150 mm -.7315/-

200 mm -.12600/-

250 mm -.22562/-

300 mm -,35650/-

350 mm -.73416/-

GST : Extra

Prices: Ex - Vijayawada

C I Flange Spigot Tail pieces, 0.2 mtr Length:

100 mm - 621/-

125 mm -.864/-

150 mm -.1026/-

200 mm -. 1782/-

250 mm -.2475/-

300 mm -. 3190/-

350 mm -. 4032/-

Prices : Ex - Vijayawada

G S T : Extra

1. C I D Joints : Cl - 10, With bolts, nuts, rubber rings

——————————————————————————————————

100 mm -.282/-

125 mm -.359/-

150 mm -436/-

200 mm. - 667/-

250 mm - 870/-

300 mm - 1080/-

350 mm - 1828/-

 

2. C I D joints , Cl -15, With bolts, nuts, rubber rings

——————————————————————————————————

100 mm - 282/-

125 mm - 359/-

150 mm -.448/-

200 mm - 667/-

250 mm - 887/-

300 mm -.1109/-

350 mm - 1940/-

 

3. C I D joints, Cl -20, with bolts, nuts and rubber rings

——————————————————————————————————

100 mm - 288/-

125 mm  - 374/-

150 mm - 454/-

200 mm - 715/-

250 mm - 970/-

300 mm - 1240/-

350 mm - 2140/-

 

4. C I D joints, Cl - 25, with bolts, nuts and rubber rings:

——————————————————————————————————

100 mm - 294/-

125 mm - 385/-

150 mm - 478/-

200 mm - 739/-

250 mm - 1000/-

300 mm - 1280/-

350 mm - 2260/-

Prices: Ex - Vijayawada

G S T : Extra

T S Haragopal

9849274647

 

HDPE items:

FOR Destn

G S T : Extra @ 18 percent