ORIGINAL HAND PUMPS

We can now see that k-th term is (−1)k 1/k, and that there are 100 terms, so we would write the sum in sigma notation as X100 k=1 (−1)k 1 k Key Point To write a sum in sigma notation, try to ﬁnd a formula involving a variable k where the ﬁrst term can be obtained by setting k = 1, the second term by k = 2, and so on Exercises 3

ORIGINAL HAND PUMPS - Sigma Engineering

The Sigma ‘K’ Pump incorporates many original technical features which make it the best of its type • Reinforced inlet, discharge and lugs – prevent breakage even if subjected to rough treatment • The tapered internal body – this unique technological advantage assures automatic settlement of the wings in

41 Sigma Notation and Riemann Sums

k=3 1 k using sigma notation J Practice 4 Evaluate the sum of the rectangular areas in the margin ﬁgure, then write the sum using sigma notation

Tutorial 7: VASP Calculations With Model Solvation

SIGMA = 0 05 ISYM = 0 Write flags LWAVE = F LCHARG = F Solvation LSOL = TRUE • Default solvent is water • Specify solvent parameters EB_K, SIGMA_K, NC_K, TAU for other solvents e g acetonitrile KPOINTS (Γ-only) 0 Gamma 111 000 ’ POSCAR H 2O in 15 Å box

Proteinase K (P2308) - Datasheet - Sigma-Aldrich

Proteinase K from Engyodontium album (formerly Tritirachium album) for Molecular Biology Catalog Number P2308 Storage Temperature –20 C CAS RN 39450-01-6 E C 3 4 21 64 Synonyms: Peptidase K, Endoproteinase K, Endopeptidase K Temperature prof Product Description Proteinase K is a stable serine protease with broad substrate specificity

Proteinase K, recombinant, PCR Grade - Sigma-Aldrich

sigma-aldrich com For life science research only Not for use in diagnostic procedures Proteinase K, recombinant, PCR Grade From Pichia pastoris Lyophilizate Cat No 03 115 836 001 25 mg y Version 07

Statistical Process Control & Process Capability

k Cp k 8 Rules of Control Charts 1 One (1) point > 3 Standard Deviations from the Center Line (Outside the UCL or LCL {3 Sigma Limit}) 2 Nine (9) points in a row on same side of center line 3 Six (6) points in a row, all increasing or all decreasing 4 Fourteen (14) points in a row, alternating up and down 5

Lecture 24 - UH

k→∞ a k 6= 0 p-series: X 1 kp, if p ≤ 1 Convergence Tests (1) Basic Test for Convergence KeepinMindthat, if a k 9 0, then the series P a k diverges; therefore there is no reason to apply any special convergence test Examples 1 P xk with x ≥ 1 (e g, P (−1)k) diverge since xk 9 0 [1ex] X k k +1 diverges since k k+1 → 1 6= 0 [1ex

Ductile Iron Pipes and Fittings - Sigma Commercial Products

FREEPHONE 08081 449 888 Sigma Pipeline Solutions your ﬁtting choice for so much more quality 3 Sigma Pipeline Solutions’ technical team stay ahead of the game - developing new and improved products and ensuring full compliance with any relevant existing or proposed legislation or quality standards Since its inception, Sigma Pipeline

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1

DOUBLE ACTING SEMI-ROTARY

HAND WING PUMPS

For numerous industrial and domestic applications, a

SIGMA hand pump remains the solution.

TYPE "K"

STANDARD

MODEL - CAST

IRON BODY

BRONZE MODEL

DOUBLE ACTING SEMI-ROTARY HAND WING PUMPS

- TYPE 'K' The simple and robust design, quality of materials and workmanship guarantee long and effective service. These pumps are suitable for the handling of clear and light liquids such as water, petrol, diesel and all fuels, paraffin, alcohol, light chemical solutions, edible oils etc. and are the only hand pumps safe for use with very hot liquids - up to 80ºC (176ºF).

OPERATION

The pumps are operated by the movement of the handle which causes the shaft and the wing piston, fitted with flap valves, to semi-rotate within the pump. Also enclosed in the body of the pump is the suction divider, fitted with flaps. Gland packing compressed by the gland ring and nut acts as a seal between the shaft and the pump cover. The standard model has threaded flanges and is supplied with threaded counterflanges. Two lugs facilitate the mounting of the pump to a wall or similar structure.

FEATURES

The Sigma 'K' Pump incorporates many original technical features which make it the best of its type. • Reinforced inlet, discharge and lugs - prevent breakage even if subjected to rough treatment. • The tapered internal body - this unique technological advantage assures automatic settlement of the wings in the body and guarantees smooth efficient operation even after years of usage. • A frost plug - allows water to be drained if there is a risk of frost. • Thorough quality control - each pump is individually tested to a suction lift of 7m of water and 20m of delivery head. 3

MATERIALS OF CONSTRUCTION

Standard model - Type 'K'

Casing: Cast Iron

Internals: Brass

Shaft: Steel

Gland Packing: Cotton saturated with Teflon (asbestos-free)

Availability

Substantial stocks - Sizes 00-7 in Standard Construction ensure prompt deliveries. Standard Model - type 'K' is in green colour, red is available upon request and other colours by special order.

MATERIALS OF CONSTRUCTION

Bronze Model - Type 'K'

These pumps are suitable for corrosive liquids i.e. salt water, strong chemical solutions etc.

Sizes 0, 1 and 2

Casing: Bronze

Internals: Brass

Shaft: Stainless Steel

Gland Packing: Cotton saturated with Teflon (asbestos-free)

MAIN USERS OF 'K' PUMPS

• Diesel Engine Manufacturers • Petro-Chemical Industry • Marine Applications • Construction Industry • Agricultural Industry • Garage Equipment • Reliable Back-Up for Electrical Pumps

SIGMA Type "K" Pumps

meet all major European industrial standards. 4

COMPONENTS OF THE "K" PUMP

1. Casing

2. Cover

3. Gland Nut

4. Wing Piston with Flaps & Shaft

5. Suction Divider with Flaps

6. Handle

7. Gland Packing

8 Gland Ring

9. Shaft Nut

10. Washer

11. Counterflange

12. Flange Bolt & Nut

13. Cover Bolt & Nut

14. Flange Joint

Execution:

"Neutral" with no inscription as illustrated on front page "Standard" with the mark "ISH" and the country of origin

Standard Packing

Seaworthy wooden cases each 100x46x46cm.

5 TYPE: KSB-II

An original 'K' Pump, without lugs and fixing holes. This version is without flanges and counterflanges and the inlet and discharge tubes are threaded.

Optional accessories:

• Suction tube with tapered connecting plug • Discharge or Outlet tube

DIMENSIONS

TYPE - KBS-II

Pump size 0 1 2

A 870 880 893

B 220 230 243

C 1090 1110 1136

ØD 170 170 170

E 400 400 400

d 1/2" 3/4" 1" l 230 230 230 *Dimensions in mm

TECHNICAL SPECIFICATIONS

Type - KBS-II

Pump size 0 1 2

Diameter of suction & discharge connections (in inches) 1/2 3/4 1

Delivered Quantity (l/P/M) 10 16 22

Number of Double Strokes per minute 65 60 55

GENERAL INFORMATION - STANDARD MODEL

Type K-00 K-0 K-1 K-2 K-3 K-4 K-5 K-7

Size in inches

3/8" 1/2" 3/4" 1" 1 1/4" 1 1/4" 1 1/2" 2"

Weight* kg

3.2 5.1 6.1 8.8 11.5 12.6 16 32

Lbs 7.0 11.2 13.4 19.4 25.4 27.8 35.3 70.5

Double strokes*

80 65 60 55 50 50 45 40

(per min) LPM

7.5 11.5 17.25 22.5 29 43.25 53.5 90

Capacity

GPM 1.65 2.5 3.75 5 6.5 9.5 11.75 19.8

Max m

25 25 25 25 22 22 20 15

Delivery

Head feet 82 82 82 82 72 72 66 49

Pieces per case

30 30 25 15 10 8 6 3

gross

117 174 174 153 136 122 117 116

Weight per case

net 96 153 153 132 115 101 96 95 *This data is approximate

Suction lift - 7m for all sizes

For prolonged use at depth below 3m, a foot valve should be fitted.

DIMENSIONS - STANDARD MODEL TYPE K

Measurements for the

letter symbols can be found in the table below. 7

Size K-00 K-0 K-1 K-2 K-3 K-4 K-5 K-7

D 100 135 150 170 200 220 245 288

a 90 140 140 145 170 190 200 273 b 45 55 55 60 62 74 76 72 i 7.5 10 10 10 12 12 12 15 k 98 130 150 170 200 220 240 310 v 110 175 205 230 275 295 320 360 l 120 160 180 200 240 255 275 360 o 7 13 13 13 13 13 13 15 p 220 300 300 360 450 500 600 620 u 32 25 25 30 30 30 35 50 c - 55 65 75 90 90 100 100 d - 9.5 9.5 9.5 14 14 14 15 in/out BSP 3/8" 1/2" 3/4" 1" 1 1/4" 1 1/4" 1 1/2" 2" * Dimensions in mm

Other SIGMA Products available:

LOW STAND PUMPS * HIGH STAND PUMPS * ROTARY PUMPS

Please address all enquiries to:

SIGMA ENGINNERING (M/C) LTD

26 CHURCH STREET

ALTRINCHAM, CHESHIRE

ENGLAND WA14 4DW

Tel: 00 44 (0)161 928 9988

Fax: 00 44 (0) 161 926 8726

E-mail: Office@sigmaengineering.co.uk

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[PDF] ORIGINAL HAND PUMPS - Sigma Engineering