JIS 5K/ 10K/ 16K Marine Butterfly Valve

Design Standard	JIS F 7480-1996
Nominal Pressure Class	JIS 5K / 10K / 16K options. Side-flange drilling dimensions vary by the selected class and nominal size.
Face-to-Face (L)	Historical dimensions: Series 43A / 44B Current base dimensions: Series 46 / 47 / 48
Side Flange	JIS B 2220:2012 (Steel Pipe Flanges) JIS B 2239:2013 (Iron Pipe Flanges)
Actuator Mounting	ISO 5211:2026
Testing & Inspection	JIS F 7400:2015

Design Standard

JIS F 7480-1996

Nominal Pressure Class

JIS 5K / 10K / 16K options. Side-flange drilling dimensions vary by the selected class and nominal size.

Face-to-Face (L)

Historical dimensions: Series 43A / 44B
Current base dimensions: Series 46 / 47 / 48

Side Flange

JIS B 2220:2012 (Steel Pipe Flanges)
JIS B 2239:2013 (Iron Pipe Flanges)

Actuator Mounting

ISO 5211:2026

Testing & Inspection

JIS F 7400:2015

JIS F 7480:1996 — the marine valve standard

JIS F 7480:1996 is titled Shipbuilding — Rubber seat butterfly valves. The Japanese Standards Association (JSA) describes its scope as rubber-seat butterfly valves used in shipboard piping for water, oil and similar services.

It provides a Japanese marine-industry reference for specifying this type of soft-seated butterfly valve. The applicable edition and any additional vessel or project requirements should still be checked against the original standard and purchase specification.

JIS 5K / 10K / 16K — Nominal Pressure Classes

JIS 5K, 10K and 16K are nominal pressure-class designations associated with the flange connection. They are not alternative names for JIS F 7480.

Steel pipe flanges: JIS B 2220:2012
Cast-iron pipe flanges: JIS B 2239:2013

The applicable standard and dimensional series must be verified for the nominal size, material family and selected pressure class.

What Do 5K, 10K and 16K Mean?

For unit-conversion reference, 5, 10 and 16 kgf/cm² correspond to approximately 0.49 MPa, 0.98 MPa and 1.57 MPa, respectively.

These are numerical unit conversions, not guaranteed maximum working pressures for every valve. Allowable pressure depends on the applicable pressure-temperature rating, materials, seat design and manufacturer’s rated limits.

Standard compliance is not class approval

Referencing JIS F 7480 does not, by itself, mean that a particular valve has been type-approved or certified by DNV, Lloyd’s Register (LR), Bureau Veritas (BV), CCS or another classification society.

Where required, class approval, surveyor witnessing, material traceability and specific inspection or acceptance criteria must be confirmed separately for the exact valve model and project. JIS F 7400:2015 is the related general JIS reference for marine valve and cock testing and inspection requirements.

Topic	Standard Specification	Application on This Page
Standard Scope	JIS F 7480:1996 covers marine rubber-seat butterfly valves. Table 1 distinguishes General Piping Valves (wafer type) from Ship-Hull-Attached Valves (flanged type), and centered-disc from eccentric-disc designs.	JRVAL centerline lug butterfly valve, using the corresponding wafer-pattern face-to-face dimensions.
Series Covered	Table 7, General Piping Valve (wafer type), centered-disc: 43A and 44B. Series 45A & 125B belongs to the eccentric-disc group. Series 46, 47 and 48 are listed as base dimensions.	Historical Dimensions: 43A / 44B. Current Base Dimensions: 46 / 47 / 48.
Historical Dimensions	Table 7, Note 2: Series 43, 44 and 45 (A and B series) were specified through 1 May 1992.	-

Topic

Standard Specification

Application on This Page

Standard Scope

JIS F 7480:1996 covers marine rubber-seat butterfly valves. Table 1 distinguishes General Piping Valves (wafer type) from Ship-Hull-Attached Valves (flanged type), and centered-disc from eccentric-disc designs.

JRVAL centerline lug butterfly valve, using the corresponding wafer-pattern face-to-face dimensions.

Series Covered

Table 7, General Piping Valve (wafer type), centered-disc: 43A and 44B. Series 45A & 125B belongs to the eccentric-disc group. Series 46, 47 and 48 are listed as base dimensions.

Historical Dimensions: 43A / 44B.
Current Base Dimensions: 46 / 47 / 48.

Historical Dimensions

Table 7, Note 2: Series 43, 44 and 45 (A and B series) were specified through 1 May 1992.

JIS F 7480:1996	JIS B 2002:1987	ISO 5752:2021
Table 7 · Series 43–45 A/B series; historical dimensional reference.	Tables 2-5 and 2-10 Table 2-5 covers general-machinery wafer-type butterfly valves in Series 43–48, subject to the specified material and pressure conditions. Table 2-10 covers marine butterfly valves in Series 43–45 for body-material code F (cast iron), under the listed conditions.	No direct mapping stated No corresponding ISO basic series is identified in this cross-reference for Series 43–45.
Table 7 · Series 46 Basic dimensional series.	Table 2-5 · Series 46 General-machinery wafer-type butterfly valves, subject to the specified conditions.	Basic Series 20 Corresponding face-to-face dimensional reference.
Table 7 · Series 47 Basic dimensional series.	Table 2-5 · Series 47 General-machinery wafer-type butterfly valves, subject to the specified conditions.	Basic Series 25 Corresponding face-to-face dimensional reference.
Table 7 · Series 48 Basic dimensional series.	Table 2-5 · Series 48 General-machinery wafer-type butterfly valves, subject to the specified conditions.	Basic Series 16 Corresponding face-to-face dimensional reference.

JIS F 7480:1996

JIS B 2002:1987

ISO 5752:2021

Table 7 · Series 43–45 A/B series; historical dimensional reference.

Tables 2-5 and 2-10 Table 2-5 covers general-machinery wafer-type butterfly valves in Series 43–48, subject to the specified material and pressure conditions. Table 2-10 covers marine butterfly valves in Series 43–45 for body-material code F (cast iron), under the listed conditions.

No direct mapping stated No corresponding ISO basic series is identified in this cross-reference for Series 43–45.

Table 7 · Series 46 Basic dimensional series.

Table 2-5 · Series 46 General-machinery wafer-type butterfly valves, subject to the specified conditions.

Basic Series 20 Corresponding face-to-face dimensional reference.

Table 7 · Series 47 Basic dimensional series.

Table 2-5 · Series 47 General-machinery wafer-type butterfly valves, subject to the specified conditions.

Basic Series 25 Corresponding face-to-face dimensional reference.

Table 7 · Series 48 Basic dimensional series.

Table 2-5 · Series 48 General-machinery wafer-type butterfly valves, subject to the specified conditions.

Basic Series 16 Corresponding face-to-face dimensional reference.

DN	Overall Height H	Face-to-Face (L)	Side Flange · JIS B 2220:2012 · 5K	Actuator Mounting Flange · ISO 5211:2026
DN50	173	40	45	+5	43	—	43	⌀105±0.8	4	⌀15±0.5	M12	F05	⌀50	4	⌀6.6	⌀65	⌀35
DN65	192	40	45	+5	46	—	46	⌀130±0.8	4	⌀15±0.5	M12	F05	⌀50	4	⌀6.6	⌀65	⌀35
DN80	208	60	50	-10	46	49	64	⌀145±0.8	4	⌀19±0.5	M16	F05	⌀50	4	⌀6.6	⌀65	⌀35
DN100	244	60	50	-10	52	56	64	⌀165±0.8	8	⌀19±0.5	M16	F07	⌀70	4	⌀9	⌀90	⌀55
DN125	283	60	55	-5	56	64	70	⌀200±0.8	8	⌀19±0.5	M16	F07	⌀70	4	⌀9	⌀90	⌀55
DN150	310	70	60	-10	56	70	76	⌀230±0.8	8	⌀19±0.5	M16	F07	⌀70	4	⌀9	⌀90	⌀55
DN200	385	80	65	-15	60	71	89	⌀280±0.8	8	⌀23±0.5	M20	F10	⌀102	4	⌀11	⌀125	⌀70
DN250	455	90	80	-10	68	76	114	⌀345±0.8	12	⌀23±0.5	M20	F10	⌀102	4	⌀11	⌀125	⌀70
DN300	518	90	90	0	78	83	114	⌀390±0.8	12	⌀23±0.5	M20	F10	⌀102	4	⌀11	⌀125	⌀70
DN350	606	100	100	0	78	92	127	⌀435±0.8	12	⌀25±0.5	M22	F10	⌀102	4	⌀11	⌀125	⌀70
DN400	688	110	110	0	102	102	140	⌀495±0.8	16	⌀25±0.5	M22	F14	⌀140	4	⌀17.5	⌀175	⌀100
DN450	727	130	120	-10	114	114	152	⌀555±0.8	16	⌀25±0.5	M22	F14	⌀140	4	⌀17.5	⌀175	⌀100
DN500	803	140	—	127	127	152	⌀605±0.8	20	⌀25±0.5	M22	F14	⌀140	4	⌀17.5	⌀175	⌀100
DN550	CUSTOM	150	—	154	—	170	⌀665±0.8	20	⌀27±0.5	M24	F16	⌀165	4	⌀22	⌀210	⌀130
DN600	932	160	—	154	154	178	⌀715±0.8	20	⌀27±0.5	M24	F16	⌀165	4	⌀22	⌀210	⌀130
DN650	CUSTOM	170	—	165	—	210	⌀770±0.8	24	⌀27±0.5	M24	F16	⌀165	4	⌀22	⌀210	⌀130
DN700	1012	180	—	165	—	229	⌀820±0.8	24	⌀27±0.5	M24	F25	⌀254	8	⌀17.5	⌀300	⌀200
DN750	CUSTOM	190	—	190	—	230	⌀880±0.8	24	⌀33±0.5	M30	F25	⌀254	8	⌀17.5	⌀300	⌀200
DN800	1130	200	—	190	—	241	⌀930±0.8	24	⌀33±0.5	M30	F25	⌀254	8	⌀17.5	⌀300	⌀200
DN850	CUSTOM	(210)	—	—	—	—	⌀980±1.5	24	⌀33±0.5	M30	F25	⌀254	8	⌀17.5	⌀300	⌀200
DN900	CUSTOM	(230)	—	203	—	241	⌀1030±1.5	24	⌀33±0.5	M30	F25	⌀254	8	⌀17.5	⌀300	⌀200
DN1000	1385	(250)	—	216	—	300	⌀1130±1.5	28	⌀33±0.5	M30	F25	⌀254	8	⌀17.5	⌀300	⌀200
DN1100	CUSTOM	(280)	—	—	—	—	⌀1240±1.5	28	⌀33±0.5	M30	F30	⌀298	8	⌀22	⌀350	⌀230
DN1200	CUSTOM	(300)	—	254	—	350	⌀1350±1.5	32	⌀33±0.5	M30	F30	⌀298	8	⌀22	⌀350	⌀230

Overall Height
H

Face-to-Face (L)

Side Flange · JIS B 2220:2012 · 5K

Actuator Mounting Flange · ISO 5211:2026

Series 43A

Series 44B

DifferenceΔ (44B − 43A)

Series 46

Series 47

Series 48

Bolt Circle Diameter (PCD) K

Number of Holes n

Hole Diameter d

Bolt Size —

Mounting Flange Code F

Mounting Bolt Circle K₁

Number of Holes n₁

Hole Diameter d₁

Minimum Flange Diameter A

Large Spigot Diameter B

DN50

173

—

⌀105±0.8

⌀15±0.5

M12

F05

⌀50

⌀6.6

⌀65

⌀35

DN65

192

—

⌀130±0.8

⌀15±0.5

M12

F05

⌀50

⌀6.6

⌀65

⌀35

DN80

208

-10

⌀145±0.8

⌀19±0.5

M16

F05

⌀50

⌀6.6

⌀65

⌀35

DN100

244

-10

⌀165±0.8

⌀19±0.5

M16

F07

⌀70

⌀9

⌀90

⌀55

DN125

283

-5

⌀200±0.8

⌀19±0.5

M16

F07

⌀70

⌀9

⌀90

⌀55

DN150

310

-10

⌀230±0.8

⌀19±0.5

M16

F07

⌀70

⌀9

⌀90

⌀55

DN200

385

-15

⌀280±0.8

⌀23±0.5

M20

F10

⌀102

⌀11

⌀125

⌀70

DN250

455

-10

114

⌀345±0.8

⌀23±0.5

M20

F10

⌀102

⌀11

⌀125

⌀70

DN300

518

114

⌀390±0.8

⌀23±0.5

M20

F10

⌀102

⌀11

⌀125

⌀70

DN350

606

100

127

⌀435±0.8

⌀25±0.5

M22

F10

⌀102

⌀11

⌀125

⌀70

DN400

688

110

102

140

⌀495±0.8

⌀25±0.5

M22

F14

⌀140

⌀17.5

⌀175

⌀100

DN450

727

130

120

-10

114

152

⌀555±0.8

⌀25±0.5

M22

F14

⌀140

⌀17.5

⌀175

⌀100

DN500

803

140

—

127

152

⌀605±0.8

⌀25±0.5

M22

F14

⌀140

⌀17.5

⌀175

⌀100

DN550

CUSTOM

150

—

154

—

170

⌀665±0.8

⌀27±0.5

M24

F16

⌀165

⌀22

⌀210

⌀130

DN600

932

160

—

154

178

⌀715±0.8

⌀27±0.5

M24

F16

⌀165

⌀22

⌀210

⌀130

DN650

CUSTOM

170

—

165

—

210

⌀770±0.8

⌀27±0.5

M24

F16

⌀165

⌀22

⌀210

⌀130

DN700

1012

180

—

165

—

229

⌀820±0.8

⌀27±0.5

M24

F25

⌀254

⌀17.5

⌀300

⌀200

DN750

CUSTOM

190

—

190

—

230

⌀880±0.8

⌀33±0.5

M30

F25

⌀254

⌀17.5

⌀300

⌀200

DN800

1130

200

—

190

—

241

⌀930±0.8

⌀33±0.5

M30

F25

⌀254

⌀17.5

⌀300

⌀200

DN850

CUSTOM

(210)

—

⌀980±1.5

⌀33±0.5

M30

F25

⌀254

⌀17.5

⌀300

⌀200

DN900

CUSTOM

(230)

—

203

—

241

⌀1030±1.5

⌀33±0.5

M30

F25

⌀254

⌀17.5

⌀300

⌀200

DN1000

1385

(250)

—

216

—

300

⌀1130±1.5

⌀33±0.5

M30

F25

⌀254

⌀17.5

⌀300

⌀200

DN1100

CUSTOM

(280)

—

⌀1240±1.5

⌀33±0.5

M30

F30

⌀298

⌀22

⌀350

⌀230

DN1200

CUSTOM

(300)

—

254

—

350

⌀1350±1.5

⌀33±0.5

M30

F30

⌀298

⌀22

⌀350

⌀230

JIS F 7400:2015 — Marine Valve Testing & Inspection

JIS F 7480:1996 addresses shipboard rubber-seat butterfly valves, while JIS F 7400:2015 establishes general procedures and acceptance criteria for the inspection of marine valves and cocks. The two standards serve complementary purposes.

Material & Visual Inspection

Verification of material requirements, casting surface condition, valve markings and visible defects.

Dimensional & Assembly Checks

Verification of applicable dimensions, face-to-face tolerances and correct valve assembly.

Pressure & Leakage Testing

Applicable shell pressure and seat leakage tests are performed according to the governing requirements and agreed test criteria.

Non-destructive testing, including MT, PT, RT or UT, is subject to the applicable specification and purchaser requirements. The governing product standard and agreed project criteria determine the applicable inspection scope and acceptance requirements. Third-party witnessing or classification approval should be confirmed separately where required.

Size Range	Material	Casting Process	Customer Advantage
DN50–DN300	Stainless Steel	Silica-Sol Investment Casting	Fine surface finish, excellent detail reproduction, and good dimensional accuracy.
Carbon Steel	Water-Glass Investment Casting DISCONTINUED	Historically cost-effective, with a surface finish generally better than conventional sand casting.
DN350–DN1200	Stainless Steel & Carbon Steel	Lost-Foam Casting	Accommodates complex casting geometries and flexible customization for specific valve designs.
V-Process Casting	Can provide good as-cast surface quality and dimensional consistency.

Size Range

Material

Casting Process

Customer Advantage

DN50–DN300

Stainless Steel

Silica-Sol Investment Casting

Fine surface finish, excellent detail reproduction, and good dimensional accuracy.

Carbon Steel

Water-Glass Investment Casting DISCONTINUED

Historically cost-effective, with a surface finish generally better than conventional sand casting.

DN350–DN1200

Stainless Steel & Carbon Steel

Lost-Foam Casting

Accommodates complex casting geometries and flexible customization for specific valve designs.

V-Process Casting

Can provide good as-cast surface quality and dimensional consistency.

Huawei Longgang Factory: Emergency Valve Supply in 7 Days

Background: During construction at Huawei’s Longgang factory, mismatched threads on butterfly valves supplied by a previous vendor halted installation and put the project schedule at risk.

JRVAL’s response: We urgently manufactured and delivered 200 lug-type butterfly valves within seven days, with thread dimensions controlled to the required tolerance and verified before shipment.

200 pcsLug-type butterfly valves supplied

±0.10 mmThread accuracy control

3 checksStandard go/no-go gauge inspections

What it demonstrates: fast production coordination, precision machining, and repeatable dimensional inspection for time-critical projects.

Quality Assurance & Compliance Certification & Compliance Evidence Supporting documents for supplier qualification, material traceability and project-specific valve requirements.
ISO 9001 Certificate	Quality management system	View PDF ↗
CE / PED Documentation	Conformity verification documentation	View PDF ↗
EN 10204 3.1 Material Certificate	Material and heat traceability records	View Sample ↗
Sealing Test Certificate	Valve pressure and sealing test records	View Sample ↗
Low-Temperature Impact Test	Material impact test documentation	View Sample ↗
UDEM Certificate	Product-related certification documentation	View Document ↗

Quality Assurance & Compliance Certification & Compliance Evidence Supporting documents for supplier qualification, material traceability and project-specific valve requirements.

Company & Quality Documentation

Document

Purpose

Access

ISO 9001 Certificate

Quality management system

View PDF ↗

CE / PED Documentation

Conformity verification documentation

View PDF ↗

EN 10204 3.1 Material Certificate

Material and heat traceability records

View Sample ↗

Sealing Test Certificate

Valve pressure and sealing test records

View Sample ↗

Low-Temperature Impact Test

Material impact test documentation

View Sample ↗

UDEM Certificate

Product-related certification documentation

View Document ↗

Product Compliance Manufacturing, testing and certification support depends on the applicable product specification.
API 607	Fire testing for quarter-turn valves	Certification support
API 6FA	Fire testing for valves	Certification support
API 20A	Castings for the petroleum and natural gas industry	Factory documentation available
ISO 15848-1	Fugitive emissions testing	Testing support
EAC 032 COC / DOC	Eurasian Economic Union pressure equipment requirements	Applicable scope only
BS 6364	Low-temperature and cryogenic valve requirements	Manufacturing available
UL / FM	Fire protection product requirements	Project review required

Product Compliance Manufacturing, testing and certification support depends on the applicable product specification.

Standard / Requirement

Scope

Availability

API 607

Fire testing for quarter-turn valves

Certification support

API 6FA

Fire testing for valves

Certification support

API 20A

Castings for the petroleum and natural gas industry

Factory documentation available

ISO 15848-1

Fugitive emissions testing

Testing support

EAC 032 COC / DOC

Eurasian Economic Union pressure equipment requirements

Applicable scope only

BS 6364

Low-temperature and cryogenic valve requirements

Manufacturing available

UL / FM

Fire protection product requirements

Project review required

Marine & Offshore Marine Valve Certifications Marine classification and inspection requirements are reviewed according to valve design, materials and project scope. Marine Certification Guide ↗
CCS	China Classification Society inspection and certification requirements	Available upon request
Bureau Veritas (BV)	Marine and third-party classification support	Available upon request
RINA	Marine classification and inspection requirements	Available upon request
DNV	Marine and offshore inspection requirements	Project-specific review
Lloyd's Register (LR)	Marine classification and inspection requirements for valves and piping-system components	Project-specific review
Marine type approval, product certification and surveyor-witnessed testing are distinct requirements. Confirm the applicable approval for the specific valve model and project.
Need a specific certificate or approval? Send us your valve specification and required documents for review. Contact Our Team

Marine & Offshore

Marine Valve Certifications

Marine classification and inspection requirements are reviewed according to valve design, materials and project scope.

Marine Certification Guide ↗

Classification Society

Support Scope

Availability

CCS

China Classification Society inspection and certification requirements

Available upon request

Bureau Veritas (BV)

Marine and third-party classification support

Available upon request

RINA

Marine classification and inspection requirements

Available upon request

DNV

Marine and offshore inspection requirements

Project-specific review

Lloyd's Register (LR)

Marine classification and inspection requirements for valves and piping-system components

Project-specific review

Marine type approval, product certification and surveyor-witnessed testing are distinct requirements. Confirm the applicable approval for the specific valve model and project.

Need a specific certificate or approval?

Send us your valve specification and required documents for review.

Contact Our Team