Can the NPT GW 3-piece ball valve, stainless steel, H-510 be used for both liquids and gases at pressures up to 103 bar and temperatures up to +186Â°C?

Yes. The NPT GW 3-piece ball valve, stainless steel, H-510 is suitable for both liquids and gases and is rated for working pressures up to 103 bar and operating temperatures up to +186Â°C when fitted with standard PTFE seals (pressure/temperature limits depend on seal material.refer to the chart). It is designed for pipeline installation, offers tight shut-off (internal leakage â¤0.1 NcmÂ³/min), is pressure-tested with nitrogen, and certified to ISO 15848-1:2006 (E). Note: valves are intended for fully open or fully closed service; factory packing is adjusted for 70 bar and periodic stem-seal adjustment may be required in service.

Does the NPT GW 3-piece ball valve, stainless steel, H-510 require periodic stem seal adjustment after installation and under what conditions?

The NPT GW 3-piece ball valve, stainless steel, H-510 does require periodic stem seal adjustment in some cases. Valves leave the factory with packing set for 70 bar, but because operating conditions vary, periodic tightening of the stem sealing screw (after removing the lever) may be necessary. A preliminary adjustment is recommended before installation; further adjustments should be made when you observe leakage or reduced sealing performance during service.

How is the NPT GW 3-piece ball valve, stainless steel, H-510 tested for leakage and standards compliance?

NPT GW 3-piece ball valve, stainless steel, H-510 is tested for leakage and standards compliance as follows: - Each valve is pressure tested with nitrogen to verify pressure integrity and detect leaks in body, connections and seals. - Internal leakage through the ball seal meets the tight shut-off specification: permissible internal leakage 0.1 NcmÂ³/min. - The valve is certified to ISO 15848-1:2006 (E), confirming fugitive emissions and packing performance per that standard. - Factory-adjusted packing is set for 70 bar; because operating conditions vary, the stem seal is service-adjustable via the stem sealing screw (after lever removal) to maintain tightness. - Sealing materials (standard PTFE and optional higher-performance compounds) and body/trim materials (AISI 316, AISI 304) are specified to ensure durability and compatibility with pressure/temperature ratings (up to 103 bar and +186Â°C for PTFE), supporting tested performance.

Ball valve 3-piece with NPT female thread, steel stainless, H-510

All products, Straight screw connection/

Additional information

Material	SS – stainless steel

Three-piece medium-pressure ball valve intended for demanding applications and for fittings precision ( instrumentation ) for industry chemical, petrochemical, pharmaceutical, power generation, process engineering – for liquids and for gases. Intended for in-line mounting. The valve is characterized by a large size range to ensure an adequately large flow, tightness closing (permissible leakage internal through sealing the ball 0.1 Ncm 3 /min), high durable and low torque swivel. Each valve is pressure-tested with nitrogen. Certified according to ISO 15848-1:2006 (E). lever valve with a lock standard in color yellow, Available Levers o shape oval. Material the body: steel AISI 316 (ASTM A351 CF8M, cast). Material the connection: steel AISI 316 (ASTM A351 CF3M, cast). Material the ball and stem: steel AISI 316. Material lever: steel AISI 304, PVC. sealing the ball: PTFE (standard); Available versions with other material seals o higher parameters (modified PTFE, PTFE with powder steel stainless, UHMWPE, PEEK). sealing stem: MG1241 (PTFE with fiber glass and graphite) / PTFE (standard). pressure working (dependent od temperature / material seal – see chart): up to 103 bar (PTFE). Operating temperature (dependent od material seal – see chart): up to +186°C (PTFE). connection: NPT female. notes! The ball valves are designed to work in a completely open or completely closed position. The valves have a factory-adjusted gland seal for a pressure of 70 bar. Due to varied working conditions, periodic adjustment of the seal by means of the stem seal screw may be required (after removing the lever). recommended is initial adjustment against starting installation.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HM-H510-SS-N-04	Valve ball 3-piece, 2 x 1/4" NPT female, seal PTFE, SS	12	103	In stock	Enquiry
HM-H510-SS-N-04-MP	Valve ball 3-piece, 2 x 1/4" NPT female, seal modified PTFE, SS	12	172	In stock	Enquiry
HM-H510-SS-N-04-PK	Valve ball 3-piece, 2 x 1/4" NPT female, seal PEEK, SS	12	207	In stock	Enquiry
HM-H510-SS-N-04-SSP	Valve ball 3-piece, 2 x 1/4" NPT female, seal SS PTFE, SS	12	207	In stock	Enquiry
HM-H510-SS-N-06	Valve ball 3-piece, 2 x 3/8" NPT female, seal PTFE, SS	12	103	In stock	Enquiry
HM-H510-SS-N-06-MP	Valve ball 3-piece, 2 x 3/8" NPT female, seal modified PTFE, SS	12	172	In stock	Enquiry
HM-H510-SS-N-08	Valve ball 3-piece, 2 x 1/2" NPT female, seal PTFE, SS	12	103	In stock	Enquiry
HM-H510-SS-N-08-MP	Valve ball 3-piece, 2 x 1/2" NPT female, seal modified PTFE, SS	12	172	In stock	Enquiry
HM-H510-SS-N-08-PK	Valve ball 3-piece, 2 x 1/2" NPT female, seal PEEK, SS	12	207	In stock	Enquiry
HM-H510-SS-N-08-SSP	Valve ball 3-piece, 2 x 1/2" NPT female, seal SS PTFE, SS	12	207	In stock	Enquiry
HM-H510-SS-N-12	Valve ball 3-piece, 2 x 3/4" NPT female, seal PTFE, SS	14	103	In stock	Enquiry
HM-H510-SS-N-12-MP	Valve ball 3-piece, 2 x 3/4" NPT female, seal modified PTFE, SS	14	172	In stock	Enquiry
HM-H510-SS-N-12-PK	Valve ball 3-piece, 2 x 3/4" NPT female, seal PEEK, SS	14	207	In stock	Enquiry
HM-H510-SS-N-12-SSP	Valve ball 3-piece, 2 x 3/4" NPT female, seal SS PTFE, SS	14	207	In stock	Enquiry
HM-H510-SS-N-16	Valve ball 3-piece, 2 x 1" NPT female, seal PTFE, SS	20	103	In stock	Enquiry
HM-H510-SS-N-16-PK	Valve ball 3-piece, 2 x 1" NPT female, seal PEEK, SS	20	207	In stock	Enquiry
HM-H510-SS-N-16-SSP	Valve ball 3-piece, 2 x 1" NPT female, seal SS PTFE, SS	20	207	In stock	Enquiry

Do you need a larger quantity of products or a bespoke quote?

Call us: +48 61 653 02 22 or email us: tubes@tubes-international.com

SEND ENQUIRY

Three-piece medium-pressure ball valve intended for demanding applications and for fittings precision ( instrumentation ) for industry chemical, petrochemical, pharmaceutical, power generation, process engineering – for liquids and for gases. Intended for in-line mounting. The valve is characterized by a large size range to ensure an adequately large flow, tightness closing (permissible leakage internal through sealing the ball 0.1 Ncm 3 /min), high durable and low torque swivel. Each valve is pressure-tested with nitrogen. Certified according to ISO 15848-1:2006 (E). lever valve with a lock standard in color yellow, Available Levers o shape oval. Material the body: steel AISI 316 (ASTM A351 CF8M, cast). Material the connection: steel AISI 316 (ASTM A351 CF3M, cast). Material the ball and stem: steel AISI 316. Material lever: steel AISI 304, PVC. sealing the ball: PTFE (standard); Available versions with other material seals o higher parameters (modified PTFE, PTFE with powder steel stainless, UHMWPE, PEEK). sealing stem: MG1241 (PTFE with fiber glass and graphite) / PTFE (standard). pressure working (dependent od temperature / material seal – see chart): up to 103 bar (PTFE). Operating temperature (dependent od material seal – see chart): up to +186°C (PTFE). connection: NPT female. notes! The ball valves are designed to work in a completely open or completely closed position. The valves have a factory-adjusted gland seal for a pressure of 70 bar. Due to varied working conditions, periodic adjustment of the seal by means of the stem seal screw may be required (after removing the lever). recommended is initial adjustment against starting installation.