FM4 SERIES GATE VALVES

The Valveworks USA FM4 Series consists of a lineup of gate valves with reliable, proven designs that are engineered and manufactured to meet the requirements of API 6A, and where a 7 1/16″ bore is required. This series of gate valves offer the user several options depending on the specific application including achieving a positive seal at wellbore/fl owline pressures ranging from zero to 5,000 PSI.

FM4 Series gate valves are full bore, through conduit valves. This allows for downhole tools to be passed through the wellhead and/or Christmas tree and reduces turbulent flow. FM4 Series valves are similar to each other in design with only slight variations across the lineup, offering a high percentage of parts interchangeability, giving you an efficiency driven advantage in the management and maintenance of your gate valve fleet, and providing optimal life cycle management integrity.

This brochure provides an in-depth look at the details of this series of gate valves and explains the features, benefits, characteristics, dimensional & technical data, and other valuable information needed to determine which valve provides an optimal solution for your specific application.

MODEL FM4 – UNIDIRECTIONAL, EXPANDING GATE, CAST BODY

a) Equipped with a non-sealing seat on the upstream side. See engineering note titled “Model FM4 & Model FM4 RC” for details.
d) See engineering note titled “Expanding Gate Assembly Operation Explained” for details.
h) Injectable packing can be energized into the valve bonnet stuffing box under pressure.
j) Valve bonnet / ball screw housing (where applicable) equipped with grease port(s) and fitting(s) for bearing lubrication.

MODEL FM4 SG – BIDIRECTIONAL, SLAB GATE, CAST BODY

h) Injectable packing can be energized into the valve bonnet stuffing box under pressure.
j) Valve bonnet / ball screw housing (where applicable) equipped with grease port(s) and fitting(s) for bearing lubrication.

MODEL FM4 RC – UNIDIRECTIONAL, EXPANDING GATE, FORGED BODY

a) Equipped with a non-sealing seat on the upstream side. See engineering note titled “Model FM4 & Model FM4 RC” for details.
d) See engineering note titled “Expanding Gate Assembly Operation Explained” for details.
h) Injectable packing can be energized into the valve bonnet stuffing box under pressure.
j) Valve bonnet / ball screw housing (where applicable) equipped with grease port(s) and fitting(s) for bearing lubrication.

MODEL FM4 RC SG – BIDIRECTIONAL, SLAB GATE, FORGED BODY

MODEL FM4 BSOP – BIDIRECTIONAL, SLAB GATE, CAST BODY

j) Valve bonnet / ball screw housing (where applicable) equipped with grease port(s) and fitting(s) for bearing lubrication.

MODEL FM4 RC BSOP – BIDIRECTIONAL, SLAB GATE, FORGED BODY

j) Valve bonnet / ball screw housing (where applicable) equipped with grease port(s) and fitting(s) for bearing lubrication.

DISCLAIMER: THE ACTUAL PRODUCT MAY VARY SLIGHTLY FROM SHOWN SCHEMATIC DUE TO ENGINEERING APPROVED VARIATION.

WARNING: L7M / B7M STUDS CANNOT BE SUBSTITUED FOR L7 / B7 STUDS

TABLE 1 – PRODUCT FEATURES

FEATURESFM4FM4 SGFM4 RCFM4 RC SGFM4 BSOP(f)FM4 RC BSOP(f)
Flow DirectionUnidirectional(a)BidirectionalUnidirectional(a)BidirectionalBidirectionalBidirectional
AvailableBore Sizesb& Rated WorkingPressure (PSI)7 1/16" 2K,3K,5K7 1/16" 2K,3K,5K7 1/16" 2K,3K,5K7 1/16" 2K,3K,5K7 1/16" 3K,5K7 1/16" 3K,5K
Available PSLc1,21,21,2,3,3G1,2,3,3G1,21,2,3,3G
Material ClassesAA,BB,CC,DD,EE,FFAA,BB,CC,DD,EE,FFAA,BB,CC,DD,EE,FFAA,BB,CC,DD,EE,FFAA,BB,CC,DD,EE,FFAA,BB,CC,DD,EE,FF
Valve BodyCastCastForgedForgedCastForged
Gate TypeExpanding(d)SlabExpanding(d)SlabSlabSlab
Sealing ActionMechanicalPressure-EnergizedMechanicalPressure-EnergizedPressure-EnergizedPressure-Energized
OperationManual(e)Manual(e)Manual(e)Manual(e)Manual(f)Manual(f)
Bore TypeThru-Conduit(g)Thru-Conduit(g)Thru-Conduit(g)Thru-Conduit(g)Thru-Conduit(g)Thru-Conduit(g)
Gate/Seat SealMetal to MetalMetal to MetalMetal to MetalMetal to MetalMetal to MetalMetal to Metal
Stem TypeNon-risingNon-risingNon-risingNon-risingRisingRising
Stem Packing TypeOpti-SealOpti-SealOpti-SealOpti-SealOpti-SealOpti-Seal
RepackingYes(h)Yes(h)Yes(h)Yes(h)Yes(i)Yes(i)
Bearing2(j)2(j)2(j)2(j)3(j)3(j)
Body Lubrication Fittings222222
Body/Bonnet ConnectionBoltedBoltedBoltedBoltedBoltedBolted
Balance StemNoNoNoNoYesYes
End ConnectionsFlanged (RTJ)Flanged (RTJ)Flanged (RTJ)Flanged (RTJ)Flanged (RTJ)Flanged (RTJ)
Temperature Range-75F (-60C) Thru 250F (121C)-75F (-60C) Thru 250F (121C)-75F (-60C) Thru 250F (121C)-75F (-60C) Thru 250F (121C)-75F (-60C) Thru 250F (121C)-75F (-60C) Thru 250F (121C)

a. Equipped with a non-sealing seat on the upstream side. See engineering note titled “Model FM4 & Model FM4 RC” for details.
b. 7-1/16″ X 5-1/8″, 7-1/16″ X 6″, 7-1/16″ X 6-1/8″, 7-1/16″ X 6-3/8″, 7-1/16″ X 6-5/8″, and 7-1/16″ x 7-1/8″ available upon request.
c. Product Specification Level
d. See engineering note titled “Expanding Gate Assembly Operation Explained” for details.
e. Also referred to as “HANDWHEEL OPERATED”
f. Ball Screw Operated (BSOP) – Manual gate valve with torque/turn reduction operator (15-1/2 turns, full open/closed). See engineering note titled “Ball Screw Operated (BSOP)” for details.
g. Also referred to as “FULL OPENING”.
h. Injectable packing can be energized into the valve bonnet stuffing box under pressure.
i. Repacking is achieved via stem backseat method.
j. Valve bonnet/ball screw housing (where applicable) equipped with grease port(s) and fitting(s) for bearing lubrication

ENGINEERING NOTES

Expanding Gate Assembly Operation Explained – The expanding gate assembly consists of two main components; the gate (major) and the segment (minor). These components are assembled together using precision machined pins and high quality, precision formed and treated Nickel-Chromium alloy springs. When the valve is manually operated, the gate and segment act one against the other by means of a dual expanding wedge when the valve is either fully opened or fully closed. This expansion effect of the gate assembly against the valve seats, through parallel faces of the gate assembly, provides a strong and positive seal against pulsations and vibrations created by flow conditions.

Model FM4 and Model FM4 RC – These models are unidirectional gate valves equipped with an expanding gate assembly and a sealing seat in the downstream seat pocket. The upstream seat pocket is equipped with a non-sealing seat assembly. This allows pressure to bypass the upstream seat, equalize throughout the valve body, and only seal against the downstream seat assembly as the original Model M was intended. These models are marked with a flow direction arrow for accurate installation.

NOTE: When bidirectional operation is required, a slab gate valve is necessary. FM4 expanding gate valves (Model FM4 and Model FM4 RC) are not designed for bidirectional operation.

Pressure Testing – FM4 Series gate valves are not intended to be tested through the body lubrication fittings. These fittings are designed for lubrication purposes only. Shell tests and gate/seat tests shall be conducted from the end/outlet connection by qualified personnel.

Ball Screw Operated (BSOP) – FM4 Series gate valves are offered with an optional ball screw operator, which reduces the number of handwheel turns by approximately 60%, and greatly reduces the operating torque when opening and/or closing the valve. The number of turns required for a regular handwheel operated valve is between 39-1/4 to 39-1/2 from full open to full closed. The ball screw operated (BSOP) version of the same valve requires only 15-1/2 turns. This can be beneficial when time is of the essence.

TABLE 2 – TEMPERATURE RATING

TEMPERATURE CLASSIFICATIONOPERATING RANGE
K-75°F (-60°C) TO 180°F (82°C)
L-50°F (-46°C) TO 180°F (82°C)
N-50°F (-46°C) TO 140°F (60°C)
P-20°F (-29°C) TO 180°F (82°C)
S0°F (-18°C) TO 140°F (60°C)
T0°F (-18°C) TO 180°F (82°C)
U0°F (-18°C) TO 250°F (121°C)
V35°F (2°C) TO 250°F (121°C)

TABLE 3 – MATERIAL REQUIREMENTS

MINIMUM MATERIAL REQUIREMENTS
MATERIAL CLASSBODY, BONNET END & OUTLET CONNECTIONSPRESSURE-CONTROLLING PARTS & STEMS
AAGeneral ServiceCarbon or Low-Alloy SteelCarbon or Low-Alloy Steel
BBGeneral ServiceCarbon or Low-Alloy SteelStainless Steel
CCGeneral ServiceStainless SteelStainless Steel
DDSour Service(a)Carbon or Low-Alloy Steel(b)Carbon or Low-Alloy Steel(b)
EESour Service(a)Carbon or Low-Alloy Steel(b)Stainless Steel(b)
FFSour Service(a)Stainless Steel(b)Stainless Steel(b)
HHSour Service(a)CRA(acd)CRA(acd)
a. As defined by ISO 15156 (all parts) (NACE MR0175; See Clause 2).
b. In accordance with ISO 15156 (NACE MR0175; See Clause 2).
c. CRA required on retained-fluid wetted surfaces only.
d. CRA as defined in Clause 3; ISO 15156 (all parts) (NACE MR0175; See Clause 2) definition of CRA does not apply.

VALVEWORKS USA DESCRIPTION KEY

GV,6A,MOD MDS,EXP GATE,2 1/16"5MFEDD-NL-KU-1-2,HWO
GATE VALVE
API SPECIFICATION
VALVEWORKS USA MODEL
GATE TYPE
BORE SIZE (NOMINAL)
RATED WORKING PRESSURE
END CONNECTION
MATERIAL CLASS
TEMPERATURE RATING/CLASSIFICATION
PSL
PR
OPERATION TYPE

ABBREVIATION KEY

  • MSG = Model M Slab Gate
  • MDS = Model M Unidirectional
  • MRC SG = Model M Round Cavity Slab Gate
  • MRC DS = Model M Round Cavity Unidirectional
  • HWO = Handwheel Operated (manual)
  • EXP = Expanding
  • SG = Slab Gate
  • FE = Flanged End
  • RTJ = Ring Type Joint
  • PSL = Product Specification Level
  • PR = Performance Requirement
  • LP = Line Pipe
  • STC = Casing Short Thead
  • LC = Casing Long Thead
  • EU = Tubing, Ecternal Upset
  • CRA = Corrosion-resistant Alloy
  • XYL = Xylan®
  • HF = Hardfaced

DIMENSION TABLE KEY

KeyDescription
AFace to Face
BValve Bore Size (Nominal)
CBore Centerline to Bottom
DBore Centerline to Top
EHandwheel Diameter
NTNumber of Turns
RJRing Joint
TSThread Size
BBSBonnet Stud Size
NNumber of Studs
WTApproximate Weight
HTHandwheel Operating Torque

FLANGED GATE VALVES

SIZEWP (PSI)ABCDENTRJBSSNWT (LBS)HT (FT-LBS)
7 1/162K25 1/87 1/1616 5/833 1/22439 1/4R-451 1/41047
7 1/163K28 1/87 1/1616 5/833 1/22439 1/4R-451 1/41550
7 1/165K327 1/1616 5/833 1/23039 1/4R-461 1/41650

THREADED GATE VALVES

SIZEWP(PSI)ABCDENTRJBSSNWT(LBS)HT(FT-LBS)
7 1/163K28 1/87 1/1630 1/8562815 1/2R-451 1/41915
7 1/165K327 1/1630 1/8562815 1/2R-461 1/42015