Two-piece ball valve — G thread
Steel products · Ball valves
Two-piece ball valves with
Two-piece ball valves with
internal thread.
Dvodelne loptaste slavine sa unutrašnjim G ili NPT navojem. Konstrukcija po sistemu „anty blow“ — vreteno ne može da ispadne pri radnim ili havarijskim uslovima, montaža iz unutrašnjosti kućišta. Nazivni otvori R 3/8″ – 2″, nazivni pritisci PN 16 / 25 / 40 / 63 (PN 100, 160 and Class 150–1500 on request).
Steel
Konstrukcija „anty blow“,
PTFE zaptivanje, 200°C max.
The "anty blow" design prevents the stem from blowing out of the valve under operating or emergency conditions — the stem is mounted from the inside of the body. They are standardly made of carbon or stainless steel with an internal G or NPT thread.
DN3/8″ – 2″Internal G or NPT thread
PN16 / 25 / 40 / 63PN 100, 160 and Class 150–1500 on request
MaterialC-steel · INOX1.0619 / 1.1151 or 1.4581 / 1.4571
PTFEdo 200°CStandard sealing
| Construction | Two-piece body, "anty blow" system (stem cannot blow out) — stem mounted from the inside of the body |
|---|---|
| Nominal sizes | R 3/8″ – 2″ (G or NPT) |
| Nominal pressures | Standard PN 16, 25, 40, 63 — PN 100, 160 and Class 150, 300, 600, 800, 900, 1500 on customer request |
| Connection dimensions — G thread | EN 10266-1 (internal G thread) · metric thread on order |
| Connection dimensions — NPT thread | ASME B1.20.1 |
| Body material — C-steel | W.Nr. 1.0619 · W.Nr. 1.1151 |
| Body material — INOX | W.Nr. 1.4581 · 1.4571 · 1.4552 · 1.4541 · 1.4408 · 1.4301 (other materials on request) |
| Sealing | Standard PTFE (Teflon) — for PN 100 and 160 metal-encapsulated PTFE |
| Operating temperature | Max. 200 °C (limited by the use of PTFE) |
| Testing | Hydraulic pressure and leak-tightness per EN 12266-1 |
| Application | Wide range — non-aggressive and aggressive fluids (in consultation with the manufacturer) |
Components, dimensions and
area of application.
The tabs contain the construction drawing, the components and materials (for G and NPT thread versions), dimensional tables by DN and the P-T application diagram for PTFE sealing.
Key parameters
- ConstructionDvodelna · „anty blow“
- DN3/8″ – 2″
- PN16 / 25 / 40 / 63
- ThreadG (EN 10266-1) · NPT (ASME B1.20.1)
- MaterialC-steel · INOX
- SealingPTFE — up to 200°C
Table 1 / 4 — Type and order number
| Type | Thread | Order number |
|---|---|---|
| DLS – NG.Č | Internal G thread — C-steel | 2.205 |
| DLS – NG.K | Internal G thread — INOX | 2.206 |
| DLS – NNPT.Č | Internal NPT thread — C-steel | 2.307 |
| DLS – NNPT.K | Internal NPT thread — INOX | 2.308 |
Table 2 / 5 — Components and materials
| Pos. | Name | DLS – NG.Č / DLS – NNPT.Č | DLS – NG.K / DLS – NNPT.K |
|---|---|---|---|
| 1 | Body | 1.0619 (1.1151) | 1.4581 (1.4571) |
| 2 | End connection | 1.0619 (1.1151) | 1.4581 (1.4571) |
| 3 | Ball | 1.4057 | 1.4571 |
| 4 | Stem | 1.4057 | 1.4571 |
| 5 | Seat | PTFE + glass | PTFE + glass |
| 6 | Sealing ring | PTFE | PTFE |
| 7 | O-ring | FPM | FPM |
| 8 | Gland ring | 1.4057 | 1.4571 |
| 9 | Pin | 1.4057 | 1.4057 |
| 10 | Belleville spring | 1.0970 | 1.0970 |
| 11 | Handle | 1.0038 | 1.0038 |
| 12 | Nut | 5.6 | 1.4571 |
Table 3 — Dimensions: DLS – NG.Č / DLS – NG.K
| DN | PN | Installation dimensions (mm) | Connection dimensions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| L | H | Hr | R | t (mm) | OK (mm) | d (mm) | d₁ | ||
| 3/8″ | 16 · 25 · 40 · 63 · 100 · 160 | 78 | 32 | 48 | 100 | 11,5 | 27 | 8,5 | G 3/8″ |
| 1/2″ | 16 · 25 · 40 · 63 · 100 · 160 | 87 | 35 | 50 | 100 | 16 | 30 | 11 | G 1/2″ |
| 3/4″ | 16 · 25 · 40 · 63 · 100 · 160 | 93 | 37 | 52 | 100 | 16 | 36 | 14 | G 3/4″ |
| 1″ | 16 · 25 · 40 · 63 · 100 · 160 | 108 | 47 | 65 | 125 | 18 | 41 | 18 | G 1″ |
| 1 1/4″ | 16 · 25 · 40 · 63 · 100 · 160 | 130 | 54 | 70 | 125 | 20 | 55 | 25 | G 1 1/4″ |
| 1 1/2″ | 16 · 25 · 40 · 63 · 100 · 160 | 160 | 63 | 80 | 160 | 22 | 65 | 28 | G 1 1/2″ |
| 2″ | 16 · 25 · 40 · 63 · 100 · 160 | 150 | 75 | 90 | 175 | 24 | 80 | 38 | G 2″ |
Table 6 — Dimensions: DLS – NNPT.Č / DLS – NNPT.K
| DN | PN | Installation dimensions (mm) | Connection dimensions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| L | H | Hr | R | t (mm) | OK (mm) | d (mm) | d₁ | ||
| 3/8″ | 16 · 25 · 40 · 63 · 100 · 160 | 78 | 32 | 48 | 100 | 11,5 | 27 | 8,5 | NPT 3/8″ |
| 1/2″ | 16 · 25 · 40 · 63 · 100 · 160 | 87 | 35 | 50 | 100 | 16 | 30 | 11 | NPT 1/2″ |
| 3/4″ | 16 · 25 · 40 · 63 · 100 · 160 | 93 | 37 | 52 | 100 | 16 | 36 | 14 | NPT 3/4″ |
| 1″ | 16 · 25 · 40 · 63 · 100 · 160 | 108 | 47 | 65 | 125 | 18 | 41 | 18 | NPT 1″ |
| 1 1/4″ | 16 · 25 · 40 · 63 · 100 · 160 | 130 | 54 | 70 | 125 | 20 | 55 | 25 | NPT 1 1/4″ |
| 1 1/2″ | 16 · 25 · 40 · 63 · 100 · 160 | 140 | 63 | 80 | 160 | 22 | 65 | 28 | NPT 1 1/2″ |
| 2″ | 16 · 25 · 40 · 63 · 100 · 160 | 150 | 75 | 90 | 175 | 24 | 80 | 38 | NPT 2″ |
P-T diagram for PTFE sealing
Do you need exact technical data?
Send a request with the basic system parameters (DN, PN, G or NPT thread, medium, operating temperature) and we will propose the appropriate DLS-NG or DLS-NNPT version.
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Contact
Send a technical request for
Send a technical request for
a two-piece ball valve.
Send the basic data on DN, PN, thread standard (G or NPT), medium and operating temperature. The KB Armature team will contact you with a proposal for the DLS-NG or DLS-NNPT version.