Masoneilan* Fugitive Emission Packing packing to comply with regulatory and internal fugitive...

Masoneilan*Fugitive Emission Packing Selection Guide

Selection Guide 02/2017

GE Oil & Gas

GE Data Classification : Public

Table of ContentsOverview .................................................................................................................................................................................................................. 3

Fugitive Emission Qualification Standards ............................................................................................................................................... 4

Sorting Out the Qualification Standards ................................................................................................................................................... 4

Fugitive Emission Packing Designs .............................................................................................................................................................. 5

GE Masoneilan Fugitive Emission Packing Offerings............................................................................................................................ 6

LE* Design L8b ...................................................................................................................................................................................................... 7

Design L13b ............................................................................................................................................................................................................ 8

Design L13e ............................................................................................................................................................................................................ 8

Design L14 .............................................................................................................................................................................................................. 9

Design L16 .............................................................................................................................................................................................................. 9

Design R4c & R4d .............................................................................................................................................................................................. 10

Design R6c ........................................................................................................................................................................................................... 10

How to Order ...................................................................................................................................................................................................... 11

2 | GE Oil & Gas

Masoneilan Fugitive Emission Packing Selection Guide | 3© 2017 General Electric Company. All rights reserved.

GE Masoneilan presents this selection guide to assist our customers with choosing the correct packing to comply with regulatory and internal fugitive emission requirements. Recent years have seen increased attention being paid to fugitive emissions, and generally, valves are one of the major focus areas that customers and the regulatory agencies are concerned about. It is important to understand both the regulatory requirement, as well as the actual service conditions that the valve will be expected to see, in order to select the appropriate configurations. Table 1 highlights the differences in fugitive emission test standards. Most of the fugitive emission qualifications are scoped based on a defined temperature and pressure range. The end-user should ensure that the packing qualification covers the operating range of the valve in service. Tables 2 and 3 in this document outline the pressure-temperature selection guide for GE Masoneilan Packing sets.

Overview

4 | GE Oil & Gas © 2017 General Electric Company. All rights reserved.

Fugitive Emission Qualification Standards

Table 1. Fugitive Emission Qualification Standards

ApplicationMechanical

CyclesThermal Cycles

Pressure Fluid MethodPacking

Leak Rate

ISO-15848Control and On-Off Valves

Control Valves:CC1 (20k cycles)CC2 (60k cycles)CC3 (100k cycles)

On-Off Valves:CO1 (205 cycles) CO2 (1500 cycles)CO3 (2500 cycles)

Control Valves:CC1 (2 cycles)CC2 (3 cycles)CC3 (4 cycles)

On-Off Valves:CO1 (2 cycles)CO2 (3 cycles)CO3 (4 cycles)

Mfg. Defined

HeliumIsolated vacuum atmosphere

A: 1,78 10-7

B: 1,78 10-6

C: 1,78 10-4

UOM mbar . L / s per mm stem dia

Methane Sniffing

A: ≤ 50B: ≤ 100C: ≤ 500UOM ppmv

ANSI / FCI 91-1

Control Valves

A (100k cycles)B (25k cycles)C (100k cycles)D (25k cycles)E (5k cycles)

A (3 cycles)B (3 cycles)C (0 cycles)D (0 cycles)E (1 cycles)

Mfg. Defined Methane SniffingCL 1: 100 ppmCL 2: 500 ppm

API 622 On-Off Valves 1510 5600 psi(41.4 bar)

Methane Sniffing 500 ppmv

API 624 On-Off Valves 310 3600 psi(41.4 bar)

Methane Sniffing 100 ppmv

VDI 2440 Not DefinedNot Defined(typ. 500-2000)

Not DefinedNot Defined(typ. 40 bar)

HeliumIsolated vacuum atmosphere

T≤250°C : 10-4

T≥250°C : 10-2

UOM mbar . L / (s . m)

It is important to recognize the difference in cycle life expected from on-off and control applications. A review of the standards shows the significant difference in qualification cycles for each application. A control valve that has been through a qualification for ISO-15848 CC3 (100,000 cycles) will require a very different packing configuration than an on-off valve qualified to API-624 (~1,500 cycles). GE Masoneilan has been qualifying its control valve packing to the more stringent ISO and FCI requirements for over 20 years. Another test parameter of consideration is the test media. Helium has begun to be accepted as the primary test media in the control valve industry, while methane has remained a requirement for certain markets (US EPA e.g.). Although several attempts have been made, no equivalency between test media has proven possible. It is clear however that the smaller molecule size of helium combined with an isolated vacuum atmosphere and mass spectrometry, have resulted in the ISO helium test being one of the most stringent in the world.

Sorting Out the Qualification Standards


Typical Live-loaded Packing Arrangement.

Fugitive Emission Packing DesignsThe illustration below shows a typical arrangement for low emission packing. The importance of each component is outlined below:

1. Packing Rings – The primary sealing rings of the set. Through management of a “packing stress level”, these rings do the majority of the sealing that we desire from the set. The materials are selected to have a combination of strength and low permeability, while minimizing frictional effects on the moving component.

2. Top & Bottom End Rings – These may also contribute to sealing, but the primary function is to provide a reinforcement and “anti-extrusion” effect for the packing rings.

3. Packing Follower – While the follower also provides extrusion resistance, its primary function is to transfer loading uniformly to the packing set. A spherical mating surface with the packing flange ensures a consistent application of load transmission.

4. Live-loading – Typically a series of springs that may be embedded into a packing flange (as shown), placed on top of the packing flange, or embedded in the packing follower (see L8b design pg. 5). The spring sets provide a constant loading (to provide the packing stress) and maintain that load for a period of time reducing the frequency of manual adjustments. While not called out below, it should be noted that through proper torque applied to the packing nuts, the spring load is generated. Maintenance of this torque is critical to ensuring low leakage rates.

It should also be noted that the valve body-bonnet joint is also a source of emissions. For ISO qualified designs, this joint is tested and part of the qualification.

Live-loading

Packing Follower

Top End Ring

Packing Rings

Bottom End Ring


GE Masoneilan Fugitive Emission Packing Offerings

Table 2. Linear Valve Packing

Qualification Standard

Packing Designation

Valve Group

(see table 4)Endurance Leakage Class

Max. ASME Class1

Max. Fluid Temp. °C (°F)

FCI 91-1 L8b (LE) A A1 (100k cycles) <100 ppm Methane 600 343 (650)

ISO-15848

L13b A CC1 (20k cycles)

Class A 1500 40 (104)

Class A 600 200 (392)

Class B 1500 220 (428)

L13e BCC1 (20k cycles) Class A

2500 260 (500)CC3 (100k cycles) Class B

L13e G CC2 (60k cycles) Class B 2500 343 (650)

L14 A CC1 (20k cycles)Class A 600

425 (797)Class B 1500

L16 ACC1 (20k cycles) Class A 2500

510 (950)CC2 (60k cycles) Class B 1500

L16 B CC3 (100k cycles) Class A 2500 315 (600)

L16 G CC3 (100k cycles) Class A 900 454 (850)

All packing sets listed are with live-loading Note 1: See additional pressure - temperature limitation on Pg. 7

Table 3. Rotary Valve Packing

Qualification Standard

Packing Designation

Valve Group

(see table 4)Endurance Leakage Class

Max. ASME Class

Max. Fluid Temp. °C (°F)

ISO-15848

R4C

C

CC2 (60k cycles) Class B

600

400 (750)

R4D CC3 (100k cycles) Class A 250 (482)

R6C CC1 (20k cycles) Class B 385 (725)

Table 4. Valve Group Definition

A10000, 18400/78400 (2 in. and below), 21000, 41005, 48000, 71000, 72000, 74000, 79003, 80000, 84002 Series

B 18400/78400 (3 in. and above), 49000 Series

C 31000, 33000, 35002, 37002 Series

G 77000 Series

The following tables highlight the packing designs and certifications achieved for Masoneilan Packing sets. The figures that follow the table provide detailed views of each Packing design listed. This guide is supported by ValSpeQ* sizing and selection tool and Application Engineering support worldwide to meet any fugitive emission requirement. For applications / certifications not listed, please consult Application Engineering since we work with many customers and packing suppliers to meet specific demands.


Fugitive Emission Packing Designs

An EPA compliant offering with qualification to less than 100 ppm Methane. Also available and certified with fire-safe option.

LE* (Low Emission)Design L8b

PRESSURE AND TEMPERATURE RATING OF LE PACKING

0

200

400

600

800

1000

1200

1400

1600

0 100 200 300 400 500 600 700

FLUID TEMPERATURE (DEGREES F)

FLUI

D PR

ESSU

RE (P

SI)

21000 SERIES

41000 SERIES

Pressure and Temperature Rating of LE Packing

Spring Loaded Follower S/A

Spacer

Kalrez® / Zymax®Packing Set5 pieces


A Teflon® braided design with ISO-15848 compliance up to Class A helium for general service valves.


Graphite anti-extrusion rings Braided Teflon®

with carbon core

Design L13e

Graphite / Teflon® anti-extrusion system Braided Teflon®

with carbon core

A Teflon® braided, double anti-extrusion design with ISO-15848 compliance up to Class A helium.

Design L13b

Graphite anti-extrusion ring


A graphite braided design with ISO-15848 compliance up to Class A helium.

Braided graphite


A double Teflon® braided design with ISO-15848 compliance up to Class A helium.

Graphite anti-extrusion rings

Braided Teflon® with carbon core


Design L14

Design L16


A Teflon® braided design with ISO-15848 compliance up to Class A helium.

A graphite braided design with ISO-15848 compliance up to Class B helium


Graphite anti-extrusion rings

Braided graphite


Design R4C & R4d

Design R6c


How to OrderCustomers typically will detail the required low emission packing requirements and specify which standards must be met. Val-SpeQ will be the primary sizing and selection tool in matching application conditions with the right packing set. In addition, it is important to know other factors such as the qualified cycle life and numbers of adjustments performed during qualification, so that proactive maintenance and replacement programs can be implemented to ensure desired emissions conformity. All of the packing sets outlined in this guide can be provided with certificates of conformity that detail the parameters of the qualification testing, as well as the extension of this testing to other sizes and valve types. Below is a sample certification and its “decoding” to help you understand the nomenclature:

Test Article - Prototype Test

Packing Set ... R4D

Test Specification

Certification Details:AH – Class A, Helium TestCC3 – 100,000 cyclesSSA2 – 2 Stem adjustmentsT(RT/+250°C) valid RT to +250°C

Stem Diameter Extension

Finally, it’s important to know that for full ISO compliance, production tests need to be performed on a percentage of valves shipped. Given the robustness of the designs and rigor of testing processes, this requirement may be waived by the customer and is a good topic to review as the process can add cost and cycle to the order.

Prototype Test Certificate

* Denotes a Trademark of General Electric Company.Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners.

© 2017 General Electric Company. All rights reserved.

GEA32991 02/2017

DIRECT SALES OFFICE LOCATIONS

AUSTRALIABrisbane:Phone: +61-7-3001-4319Fax: +61-7-3001-4399

Perth:Phone: +61-8-6595-7018Fax: +61 8 6595-7299

Melbourne:Phone: +61-3-8807-6002Fax : +61-3-8807-6577

BELGIUMPhone: +32-2-344-0970Fax: +32-2-344-1123

BRAZILPhone: +55-19-2104-6900

CHINAPhone: +86-10-5689-3600Fax: +86-10-5689-3800

FRANCECourbevoiePhone: +33-1-4904-9000Fax: +33-1-4904-9010

GERMANYRatingenPhone: +49-2102-108-0Fax: +49-2102-108-111

INDIAMumbaiPhone: +91-22-8354790Fax: +91-22-8354791

New DelhiPhone: +91-11-2-6164175Fax: +91-11-5-1659635

ITALYPhone: +39-081-7892-111Fax: +39-081-7892-208

JAPANTokyo Phone: +81-03-6871-9008Fax: +81-03-6890-4620

KOREAPhone: +82-2-2274-0748Fax: +82-2-2274-0794

MALAYSIAPhone: +60-3-2161-0322Fax: +60-3-2163-6312

MEXICOPhone: +52-55-3640-5060

THE NETHERLANDSPhone: +31-15-3808666Fax: +31-18-1641438

RUSSIAVeliky NovgorodPhone: +7-8162-55-7898Fax: +7-8162-55-7921

MoscowPhone: +7 495-585-1276Fax: +7 495-585-1279

SAUDI ARABIAPhone: +966-3-341-0278Fax: +966-3-341-7624

SINGAPOREPhone: +65-6861-6100Fax: +65-6861-7172

SOUTH AFRICAPhone: +27-11-452-1550Fax: +27-11-452-6542

SOUTH & CENTRAL AMERICA AND THE CARIBBEANPhone: +55-12-2134-1201Fax: +55-12-2134-1238

SPAINPhone: +34-93-652-6430Fax: +34-93-652-6444

UNITED ARAB EMIRATESPhone: +971-4-8991-777Fax: +971-4-8991-778

UNITED KINGDOMBracknellPhone: +44-1344-460-500Fax: +44-1344-460-537

SkelmersdalePhone: +44-1695-526-00Fax: +44-1695-526-01

UNITED STATESJacksonville, FloridaPhone: +1-904-570-3409

Corpus Christi, Texas Phone: +1-361-881-8182Fax: +1-361-881-8246

Deer Park, TexasPhone: +1-281-884-1000Fax: +1-281-884-1010

Houston, TexasPhone: +1-281-671-1640Fax: +1-281-671-1735

www.geoilandgas.com/valves

Masoneilan* Fugitive Emission Packing packing to comply with regulatory and internal fugitive...

Documents

Transcript of Masoneilan* Fugitive Emission Packing packing to comply with regulatory and internal fugitive...