V02_REV01

CONTROVAL Pressure Relief Valve Sizing & Selection Report

Edif. 446A, Calle San Rafael c/ 16-ene-2014

Venezuela+58-212-9440966

[email protected] Number: No Prpd. Chk. Appr. Date Revision

Client: PDVSA GAS

Location: ESTACION FLUJO CHIMIRE 6 (CHEF-6) End-User Ref. No.:

Project: FACILIDADES DE PRODUCCION CHIMIRE Project Ref. No.: DB410901

1 Valve ID 41 SIZING DATA

2 Tag No. PSV-260230 / PSV-260231 42 Design Code ASME Section VIII Sizing Std. API 520

3 Service Alivio Separador Producción V-02 43 Sizing Basis Blocked Discharge

4 PID No. DB410901-EF1D3-PP03007 44 Fluid State at Inlet Gas / Vapor

5 Line No. 3"-GG-011-AA1 Quantity 45 Relieving Case Pressure Relief

6 2 46 Fluid Properties

7 GENERAL 47 Fluid Name Natural Gas (SG=0.6)

8 Valve Type Pilot-Op, Pop Acting, Non-Flowing Pilot 48 Molecular Weight, M 25.169

9 Safety / Relief Safety Balanced Yes 49 Compressibility, Z 0.973

10 Nozzle Semi Bonnet Closed 50 Ratio of Sp. Heats, k (Cp / Cv) 1.251

11 CONNECTIONS 51 Gas Constant, C 342.3

12 Inlet 3" Flngd. 150# RF Standard 52

13 Outlet 4" Flngd. 150# RF ASME B16.5 53

14 MATERIALS OF CONSTRUCTION 54

15

MainValve

Body CS SA216-WCB/WCC 55

16 Cap CS SA516-70 56

17 Trim Stainless Steel 57

18 Seat Buna-N 58

19 Seals Buna-N 59 Sizing Coefficients Unit -

20

PilotValve

Body SS A479-316 60 K, Gas Kd, Gas 0.627 0.697

21 Trim Spring SST 316 SST 61 Kb Kc 0.969 1

22 Seat Buna-N 62

23 Seals Buna-N 63

24 Diaphragm N/A 64 Required Capacity Unit lb/hr

25 Tubing Fittings 316 SST SS CPI 65 Total 15594.257

26 Integral Sense NACE MR0175 (2002) No 66

27

Acc

esso

ries 67 Pressures Unit psig

28 68 MAWP Operating 97

29 69 Set CDTP 124

30 70 Over Pressure 12.4 10%

31 SIZING / SELECTION SUMMARY 71

BackPressure

Constant Superimposed 0

32 Valve Model No. 25305K34/S1 72 Variable Superimposed 50

33 Brand Anderson Greenwood 73 Built-Up 0

34 Area Calculated Selected 2.321 3.043 74 Total 50

35 (in²) Data Set Orifice ASME K 75 Inlet Loss 0 0%

36

Flow

Unit Required lb/hr 15594.257 76 Atmospheric (Barometric) 14.696 psia

37 Rated Actual 20446.779 22718.643 77 Relieving (Flowing) 151.096 psia

38 78 Temperatures Unit °F

39 Estimated Reaction Force 110.55 daN 79 Operating Relieving 107

40 Estimated Noise Level (db) 99.2 at 100-ft 80 Design Min Design Max

Tag

No

tes

Val

ve D

imen

sio

ns

in

A

6.12

B

6.38

C

17.55

lb

Weight

88

Printed On: 25-mar-2014 Pentair PRV²SIZE Software Version pr5_20131223.1 Page : 1

Pentair Valves & Controls and its parent, subsidiaries, and affiliates assume no liability in any way whatsoever for any direct or indirect loss or damage through the application of this software. See terms of license

agreement. Not for resale. All rights reserved. All trademarks, trade names and/or registered trademarks referred to in this program are the property of their respective owners. Copyright © 2014 Pentair Valves & Controls.

CONTROVAL Pressure Relief Valve Calculation Report


Venezuela+58-212-9440966


Client: PDVSA GAS



1 VALVE ID 11 CALCULATION NOTES

2 Tag No. PSV-260230 / PSV-260231 12

3 Valve Model No. 25305K34/S1 Qty. 2 13

4 SIZING DATA 14

5 Design Code ASME Section VIII Sizing Std. API 520 15

6 Fluid State at Inlet Gas / Vapor 16

7 CALCULATION SUMMARY

8Flow

Required 15594.257 lb/hr 18Area

Required 2.321 in²

9 Rated 20446.779 lb/hr 19 Selected 3.043 in²

10 Estimated Reaction Force 110.55 daN 20 Estimated Noise Level (db) 99.2 at 100 ft

Variable Type Variable Name Symbol Input Value Equation Value

Fluid Properties Molecular Weight M 25.169 25.169

Ratio of Specific Heats k 1.251 1.251

Compressibility Z 0.973 0.973

Process Cond. Required Mass Flow Wreq 15594.257 lb/hr 15594.257 lb/hr

Set Pressure Pset 124 psig 124 psig

Over Pressure Pover 12.4 psig 12.4 psig

Inlet Line Loss Ploss 0 psig 0 psig

Back Pressure Pback 50 psig 50 psig

Atmospheric Pressure Patm 14.696 psia 14.696 psia

Relieving Temperature T 107 °F 566.670 °R

Distance from Valve (noise) r 100 ft 100 ft

Rupture Disc CCF Kc 1 1

Valve Data Discharge Coefficient (actual) Kd 0.697 0.697

Discharge Coefficient (derated) K 0.627 0.627

Orifice Area A 3.043 in² 3.043 in²

Back Pressure Correction Facto Kb 0.969 0.969

Outlet Diameter Do 3.83 in 3.83 in

Calculate Inlet Relieving Pressure, Outlet Pressure, Absolute Pressure Ratio

P1 = Pset + Pover - Ploss + Patm P1 151.096 psia

P2 = Pback + Patm P2 64.696 psia

PR = P2 / P1 PR 0.428

Calculate Gas Constant C 342.3

C = 520 * {k * [2 / (k + 1)]^[(k + 1) / (k - 1)] }^0.5

Calculate Mass Critical Flow W 20446.779 lb/hr 20446.779 lb/hr

W = A * C * K * P1 * Kb * Kc * [M / (T * Z)]^0.5

Calculate Required Orifice Area Areq 2.321 in² 2.321 in²

Areq = A * Wreq / W

Calculate Mass Critical Flow (for Noise Calc) W 22718.643 lb/hr

W = A * C * Kd * P1 * Kb * Kc * [M / (T * Z)]^0.5

Calculate Noise Level at 100-ft (30-m) L100 99.2 db

L100 = [87.75 * log( 1/PR ) + 14.09] + [10 * log(0.29354 * W * k * T / M)]




CONTROVAL Pressure Relief Valve Calculation Report


Venezuela+58-212-9440966


Client: PDVSA GAS



1 VALVE ID 11 CALCULATION NOTES

2 Tag No. PSV-260230 / PSV-260231 12

3 Valve Model No. 25305K34/S1 Qty. 2 13

4 SIZING DATA 14

5 Design Code ASME Section VIII Sizing Std. API 520 15

6 Fluid State at Inlet Gas / Vapor 16

7 CALCULATION SUMMARY

8Flow

Required 15594.257 lb/hr 18Area

Required 2.321 in²

9 Rated 20446.779 lb/hr 19 Selected 3.043 in²

10 Estimated Reaction Force 110.55 daN 20 Estimated Noise Level (db) 99.2 at 100 ft

Calculate Noise Level at Distance, r Lp 99.2 db

Lp = L100 - 20 * log(r / 100)

Calculate Outlet Static Pressure Po 1.91 psig

Po = [(0.00245 * A * C * Kd * P1 * Kc) / (Do^2 * (k * Z)^0.5)] - Patm

Calculate Reaction Force for Open Discharge Fr 110.55 daN 248.5 lbf

Ao = (π * Do^2) / 4

Fr = (A * C * Kd * P1 * Kc / 366) * {k / [(k + 1) * Z]}^0.5 + (Ao * Po)




CONTROVAL Pressure Relief Valve Dimensional Drawing


Venezuela+58-212-9440966


Client: PDVSA GAS



1 Valve ID 7 SELECTION SUMMARY2 Tag No. PSV-260230 / PSV-260231 8 Valve Model No. 25305K34/S1

3 Service Alivio Separador Producción V-02 9 Brand Anderson Greenwood

4 PID No. DB410901-EF1D3-PP03007 10 CONNECTIONS5 Line No. 3"-GG-011-AA1 Quantity 11 Inlet 3" Flngd. 150# RF Standard

6 2 12 Outlet 4" Flngd. 150# RF ASME B16.5

Wt.= 88 lb = 39.92 kg

A= 6.12 in = 155.45 mm

B= 6.38 in = 162.05 mm

C= 17.55 in = 445.77 mm

D= =

E= =

F= =

G= =

H= =

Tag

No

tes

Dim

ensi

on

No

tes • Accessories not shown.

• Weight and dimensions shownare approximate.

• Actual valve may vary from.image.




Pentair PRV²SIZE Software

Summary Report

Project Information

Company: PDVSA GAS Project: FACILIDADES DE PRODUCCION CHIMIRELocation: ESTACION FLUJO CHIMIRE 6 (CHEF-6) Project Ref. No.: DB410901

Tag Information

Tag Number: PSV-260230 / PSV-260231Revision: Last Modified: 16/01/2014 10:43:27 a.m.Prepared By: Checked By: Approved By:

Specific Tank Data

Sized Using User Defined FlowPressure Fluid: Natural Gas (SG=0.6)Pressure Set Point: 124 psigAllowed Over Pressure: 12.4 psigPressure Flow Rate: 15594.257

Valve Sizing Information

Valve Type: 253, KPart Number: 25305K34/S1 Quantity to Order: 1Max Pressure Flow Capacity: 20446.779 lb/hr

Selected Valve Description

Code Category DescriptionOption

XD Backflow preventer No Backflow PreventerXJ Spike Snubber No Spike SnubberXF Supply Filter/Vaporizer No Supply FilterXA Lift Lever No Lift LeverXE Remote Sense Integral SenseXI Remote Unloader No PH7 Remote UnloaderXC Field Test Connection No Field TestJJ Pilot Spring 121-182 psig setLU Set Pressure Range 1480 psig and belowXH Close Tee No Close TeeXG Manual Blowdown No Manual Blowdown2 Model Pilot-Operated, Pop Acting, Non-Flowing PilotAB Main Valve Lift Restricted, API OrificeAE Main Valve Piston Type Soft Seat/SealsDE Service Gas (except Air and EDR)BY Orifice K OrificeAH Main Valve Materials CS Body & SST Trim (STD Valve)AZ Valve Size 3x4 inchCF Inlet Connection 150#BZ Inlet Connection Face Style Raised Face - RFBK Outlet Connection 150# RFAO Main Valve Body Type Integral Flanged Inlet and OutletAM Nace Standard (Nace not required)DJ Main Valve Seat Buna-NDJ Main Valve Soft Goods Buna-NDJ Pilot Soft Goods Buna-NFG Fitting Type SS CPI Fittings1 Code Case 2203 No Code Case




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